A novel economic thin layer chromatographic method for stereoselective separation of racemic mixture of (RS)-Indapamide and determination of their enantiomers was done. The method was based on using normal TLC plates and cyclodextrin with hydroxylic part, was used as the chiral selector. Cyclodextrin was used as an additive in silica gel to prepare a TLC plate which was a non-covalent bonding, and there was no chiral substance added in the solvent system. The mobile phase was toluene-ethyl acetate-MeOH-glacial AcOH (6:4:1:0.1). Cyclodextrin was also added to mobile phase, and there was no chiral selector in the stationary phase. The mobile phase was a mixture of toluene-ethyl acetate-MeOH-glacial AcOH – 5mM CD (6:4:1:0.1:1.0). The spots were then isolated and identified. The impact of the componentsofmobile phase, temperature, and pHwas studied for the finding the best separation conditions. The spots were sited in a chamber which had Iodine granules.
{"title":"Direct Enantiomeric Separation of Indapamide by Thin Layer Chromatography using B- Cyclodextrin as Chiral Selector","authors":"Manju Bala, Sonika Sethi, Priyanka Sharma","doi":"10.13005/ojc/390636","DOIUrl":"https://doi.org/10.13005/ojc/390636","url":null,"abstract":"A novel economic thin layer chromatographic method for stereoselective separation of racemic mixture of (RS)-Indapamide and determination of their enantiomers was done. The method was based on using normal TLC plates and cyclodextrin with hydroxylic part, was used as the chiral selector. Cyclodextrin was used as an additive in silica gel to prepare a TLC plate which was a non-covalent bonding, and there was no chiral substance added in the solvent system. The mobile phase was toluene-ethyl acetate-MeOH-glacial AcOH (6:4:1:0.1). Cyclodextrin was also added to mobile phase, and there was no chiral selector in the stationary phase. The mobile phase was a mixture of toluene-ethyl acetate-MeOH-glacial AcOH – 5mM CD (6:4:1:0.1:1.0). The spots were then isolated and identified. The impact of the componentsofmobile phase, temperature, and pHwas studied for the finding the best separation conditions. The spots were sited in a chamber which had Iodine granules.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"82 2","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Arun Gopinath, Sangilimuthu Alagar Yadav, Ranjithkumar D
Background: Cardamom is Queen of Spices belonging to Zingiberaceae family. The present study to reveals the comparative metabolomic profile of the two different types of cardamom such as Cardamom elettaria and Amomum subulatum. Methods: Physical parameters and chemical parameters were screened in both species. The essential oil was extracted by using Clevenger apparatus and analysed the volatile profile by GC-MS studies. Results: Capsule of C. elettaria was observed to dominant in bulk density and volatile oil content whereas A. subulatum is greater in size and shape. Oil of C. elettaria showed the good ascent of Optical rotation (+29.1), Specific gravity (1.4620), refractive index (0.927), aroma and taste. In C. elettaria and A. subulatum the terpinyl acetate, geranyl acetate, and myrcene were present in high level. As well, 1,8-cineole, pinene, 3-carene, and terpineol are the primary differentiators in both seeds with diverse therapeutic effects. Conclusion: The physico-chemical characteristics of C. elettaria and A. subulatum were contrasted in this work. α-terpinyl acetate is a lead molecule in C. elettaria. 1,8-cineoleare is rich in both essential oils. Future researchers and flavourists can use this study to improve the scent and therapeutic elements of drug repurposing.
背景介绍小豆蔻是香料之王，隶属于姜科。本研究旨在揭示两种不同类型小豆蔻的代谢组学特征。研究方法对两种豆蔻的物理参数和化学参数进行筛选。使用 Clevenger 仪器萃取精油，并通过 GC-MS 研究分析其挥发性特征。研究结果据观察，白花蛇舌草的蒴果在体积密度和挥发油含量方面占优势，而亚白花蛇舌草的蒴果在大小和形状方面占优势。白花蛇舌草的油在光学旋转（+29.1）、比重（1.4620）、折射率（0.927）、香气和味道方面都表现出良好的上升趋势。在 C. elettaria 和 A. subulatum 中，乙酸萜品酯、乙酸香叶酯和月桂烯的含量较高。此外，1,8-蒎烯、蒎烯、3-蒈烯和萜品醇也是这两种种子的主要特征，具有不同的治疗效果。结论α-松油醇乙酸酯是白花蛇舌草中的主要分子，1,8-蒎烯、3-蒈烯和松油醇是白花蛇舌草中的主要分子。两种精油中都含有丰富的 1,8-松油醇。未来的研究人员和调味师可以利用这项研究来改进药物再利用的香味和治疗要素。
{"title":"Evaluation of Comparative Metabolomic Profile in Cardamom elettaria and Amomum subulatum Fruits","authors":"Arun Gopinath, Sangilimuthu Alagar Yadav, Ranjithkumar D","doi":"10.13005/ojc/390632","DOIUrl":"https://doi.org/10.13005/ojc/390632","url":null,"abstract":"Background: Cardamom is Queen of Spices belonging to Zingiberaceae family. The present study to reveals the comparative metabolomic profile of the two different types of cardamom such as Cardamom elettaria and Amomum subulatum. Methods: Physical parameters and chemical parameters were screened in both species. The essential oil was extracted by using Clevenger apparatus and analysed the volatile profile by GC-MS studies. Results: Capsule of C. elettaria was observed to dominant in bulk density and volatile oil content whereas A. subulatum is greater in size and shape. Oil of C. elettaria showed the good ascent of Optical rotation (+29.1), Specific gravity (1.4620), refractive index (0.927), aroma and taste. In C. elettaria and A. subulatum the terpinyl acetate, geranyl acetate, and myrcene were present in high level. As well, 1,8-cineole, pinene, 3-carene, and terpineol are the primary differentiators in both seeds with diverse therapeutic effects. Conclusion: The physico-chemical characteristics of C. elettaria and A. subulatum were contrasted in this work. α-terpinyl acetate is a lead molecule in C. elettaria. 1,8-cineoleare is rich in both essential oils. Future researchers and flavourists can use this study to improve the scent and therapeutic elements of drug repurposing.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"79 s1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Siddaramagoud Bandalla, Satyanarayana Mavurapu, S. Jonnalagadda, Chandrashekar Vasam
The mono or single oxides of alkaline earth metals such as CaO and MgO are a type of non-toxic and non-corrosive solid-base heterogeneous catalysts. Nevertheless, these mono oxide particles can agglomerate and form larger and less active particles at certain temperatures and reduces their catalytic activity. Therefore, the use of thermally stable CaO-MgO binary oxides is recommended. Further, the possible synergistic interactions between two metal centers provides cooperative catalytic behavior to improve catalytic activity compared to their single oxide counterparts. Therefore, the main theme of this review article is to highlight the ability of reported CaO-MgO based alkaline earth binary oxides as cost-effective and efficient solid-base catalysts in variety of organic transformations and to expand their scope in many other unexplored non-asymmetric organic transformations. Literature survey reveals that CMBOs are highly considerable in optimizing recognized organic transformations such as Transesterification, Knoevenagel/Aldol condensations, Isomerization, Oligomerization, Acetylation, Henry reaction, Alcoholysis, Aza-Michael addition, Cracking of Alkanes, H2-production via steam reforming, Photodegradation of organic pollutants and so forth. The literature survey further visualizes that the surface properties of CMBOs such as Brønsted/ Lewis’s basicity, surface area, particle size, structural diversity, Ca: Mg ratios and synergism between Ca and Mg in CMBOs are very useful to promote them as efficient catalysts compared to their single oxide counterparts (pure CaO and pure MgO). The rightness of proposed mechanisms of abovementioned organic reactions by CMBO catalysts is elicited by this review. Moreover, the precursors for CMBOs are inexpensive, highly abundant and eco-compatible. Apart from the catalytic applications, the suitability of the CMBOs in sorption studies including CO2 uptake, ethanol steam reforming, and heavy metal ion removal is also covered.
{"title":"The Emergence of CaO-MgO based Binary Oxides of Alkaline Earth Metals as Cost-effective Solid Base Heterogeneous Catalysts and Sorbents: (A Mini Review)","authors":"Siddaramagoud Bandalla, Satyanarayana Mavurapu, S. Jonnalagadda, Chandrashekar Vasam","doi":"10.13005/ojc/390602","DOIUrl":"https://doi.org/10.13005/ojc/390602","url":null,"abstract":"The mono or single oxides of alkaline earth metals such as CaO and MgO are a type of non-toxic and non-corrosive solid-base heterogeneous catalysts. Nevertheless, these mono oxide particles can agglomerate and form larger and less active particles at certain temperatures and reduces their catalytic activity. Therefore, the use of thermally stable CaO-MgO binary oxides is recommended. Further, the possible synergistic interactions between two metal centers provides cooperative catalytic behavior to improve catalytic activity compared to their single oxide counterparts. Therefore, the main theme of this review article is to highlight the ability of reported CaO-MgO based alkaline earth binary oxides as cost-effective and efficient solid-base catalysts in variety of organic transformations and to expand their scope in many other unexplored non-asymmetric organic transformations. Literature survey reveals that CMBOs are highly considerable in optimizing recognized organic transformations such as Transesterification, Knoevenagel/Aldol condensations, Isomerization, Oligomerization, Acetylation, Henry reaction, Alcoholysis, Aza-Michael addition, Cracking of Alkanes, H2-production via steam reforming, Photodegradation of organic pollutants and so forth. The literature survey further visualizes that the surface properties of CMBOs such as Brønsted/ Lewis’s basicity, surface area, particle size, structural diversity, Ca: Mg ratios and synergism between Ca and Mg in CMBOs are very useful to promote them as efficient catalysts compared to their single oxide counterparts (pure CaO and pure MgO). The rightness of proposed mechanisms of abovementioned organic reactions by CMBO catalysts is elicited by this review. Moreover, the precursors for CMBOs are inexpensive, highly abundant and eco-compatible. Apart from the catalytic applications, the suitability of the CMBOs in sorption studies including CO2 uptake, ethanol steam reforming, and heavy metal ion removal is also covered.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"12 45","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139154516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Gaurav K. Rathod, Bhavesh M. Patel, K. Parmar, Divyesh R. Patel
Bi-functional reactive dyes from the Cold brand that have exceptional dyeing capabilities. The intermediate for bi-functional cold-brand reactive dyes is 3, 3’-Disulpho-4, 4’-diamino diphenyl urea, which is synthesized through the interaction of one mole of urea aqueous solution with two moles of 1, 4-diaminobenzene-2-sulphonic acid. In this bi-functional reactive dye system, urea was utilized as a bridge molecule to give the reactive dyes significant water solubility. Incorporating various cyanurated coupling components, different colors are produced. It has good dyeing properties and provides a wide spectrum of shades on various fibres.
{"title":"Bi-functional Cold Brand Reactive Dyes with Urea as a Bridge Group: Synthesis, Characterization and Dyeing Performance on Various Fibers.","authors":"Gaurav K. Rathod, Bhavesh M. Patel, K. Parmar, Divyesh R. Patel","doi":"10.13005/ojc/390637","DOIUrl":"https://doi.org/10.13005/ojc/390637","url":null,"abstract":"Bi-functional reactive dyes from the Cold brand that have exceptional dyeing capabilities. The intermediate for bi-functional cold-brand reactive dyes is 3, 3’-Disulpho-4, 4’-diamino diphenyl urea, which is synthesized through the interaction of one mole of urea aqueous solution with two moles of 1, 4-diaminobenzene-2-sulphonic acid. In this bi-functional reactive dye system, urea was utilized as a bridge molecule to give the reactive dyes significant water solubility. Incorporating various cyanurated coupling components, different colors are produced. It has good dyeing properties and provides a wide spectrum of shades on various fibres.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"165 2","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139152977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Iodometric analysis is used to determine the kinetics and mechanism of oxidation of benzoic, m-amino, and m-nitro benzoic acid hydrazides by Thallium(III) in acidic medium at constant ionic strength. The complex decomposes to produce the product. The rate of the reaction is decreased by the rise in [H+] and [Cl-]. Additionally, Activation parameters were established, and a mechanism is proposed. The analysis of reaction constants (ρ) and substituent constants (σ) for m-nitro BAH and m-amino BAH indicates good agreement with the values from the literature.
{"title":"Kinetic Study and Hammett Correlations in the Chemistry of M-Nitro and M-Amino Benzoic Acid Hydrazides by Using Thallium (Iii) in 1,4-Dioxane Medium","authors":"Samadhan H. Nikalaje, A. Varale","doi":"10.13005/ojc/390626","DOIUrl":"https://doi.org/10.13005/ojc/390626","url":null,"abstract":"Iodometric analysis is used to determine the kinetics and mechanism of oxidation of benzoic, m-amino, and m-nitro benzoic acid hydrazides by Thallium(III) in acidic medium at constant ionic strength. The complex decomposes to produce the product. The rate of the reaction is decreased by the rise in [H+] and [Cl-]. Additionally, Activation parameters were established, and a mechanism is proposed. The analysis of reaction constants (ρ) and substituent constants (σ) for m-nitro BAH and m-amino BAH indicates good agreement with the values from the literature.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"68 3","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A novel organic compound derivativeof Benzothiazole,BFCPA[N- Substitued-1,3-benzo-thiazol-2pheny-2-[4-(furan-2-carbonyl)piperazin-1-phenyl] acetamidehas beensynthesizied and used as inhibitor on mild steelcorrosion in 1N and 2N HCl acidic medium.Using this inhibitor the rate of orrosion and inhibitor efficiency was analysed by mass loss data and electrochemical analysis.Byincreasing concentration of the inhibitor BFCPA exhibits good corrosion inhibition effectiveness less corrosion rate shows the electron donating property.The structure of BFCPA has been confirmed using various spectral studies. Based on adsorption studies it reveals Langmuir adsorption isotherm.
{"title":"Synthesis of Novel Organic Compound as Corrosion Inhibitor in Hydrochloric acid Medium-A Comparative Study","authors":"M. Vimala, Vchandrasekaran V","doi":"10.13005/ojc/390612","DOIUrl":"https://doi.org/10.13005/ojc/390612","url":null,"abstract":"A novel organic compound derivativeof Benzothiazole,BFCPA[N- Substitued-1,3-benzo-thiazol-2pheny-2-[4-(furan-2-carbonyl)piperazin-1-phenyl] acetamidehas beensynthesizied and used as inhibitor on mild steelcorrosion in 1N and 2N HCl acidic medium.Using this inhibitor the rate of orrosion and inhibitor efficiency was analysed by mass loss data and electrochemical analysis.Byincreasing concentration of the inhibitor BFCPA exhibits good corrosion inhibition effectiveness less corrosion rate shows the electron donating property.The structure of BFCPA has been confirmed using various spectral studies. Based on adsorption studies it reveals Langmuir adsorption isotherm.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"103 4","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139154089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Santosh T. Khadangale, Vitthal M. Dhalape, Rahul V. Pinjari
Venlafaxine, primarily available in dosage in Venlafaxine hydrochloride (VEN∙HCl) form, is a discriminating serotonin and norepinephrine reuptake inhibitor (SNRI) anti-depressant drug. The 4-methoxybenzyl chloride (4-MBC) is a genotoxic impurity present in VEN∙HCl. A reverse-phase high-performance liquid chromatography (RP-HPLC) method is developed for the determination of 4-MBC content this method is validated employing ICH (International Council on Harmonisation) guidelines. During the method development, Purospher STAR end-capped (250mm x 4.0mm), 5µm HPLC column, and gradient profile for mobile phase with constant 1.0 mL/min flow rate are used. Mobile phase A is a buffer of pH 8.5 containing 0.1% v/v of liquid ammonia in water with adjusted pH using 10% orthophosphoric acid, whereas mobile phase B is acetonitrile. The injection volume, column oven temperature, and autosampler temperature were 50 µL, 55 °C, and 5 °C, respectively. The data is acquired at 225 nm wavelength. The method yields a well-separated peak of 4-MBC from Venlafaxine and its impurities. This method is linear in the range of LOQ to 150% level of specification concentration of impurity and the observed correlation coefficient is 0.999. The repeatability and intermediate precision are evaluated and the respective values of %RSD for 4-MBC content are 0.43 and 0.93. Robustness studies show insignificant change for the system suitability criteria like %RSD, theoretical plates, and tailing factor, their values being well within the acceptance limit. The new method for the quantification of genotoxic impurity 4-MBC is precise, sensitive, rugged, and accurate; it also qualifies all the criteria of stability, linearity, and robustness.
{"title":"RP-HPLC Method for Content of Genotoxic 4-methoxybenzyl Chloride in Venlafaxine","authors":"Santosh T. Khadangale, Vitthal M. Dhalape, Rahul V. Pinjari","doi":"10.13005/ojc/390629","DOIUrl":"https://doi.org/10.13005/ojc/390629","url":null,"abstract":"Venlafaxine, primarily available in dosage in Venlafaxine hydrochloride (VEN∙HCl) form, is a discriminating serotonin and norepinephrine reuptake inhibitor (SNRI) anti-depressant drug. The 4-methoxybenzyl chloride (4-MBC) is a genotoxic impurity present in VEN∙HCl. A reverse-phase high-performance liquid chromatography (RP-HPLC) method is developed for the determination of 4-MBC content this method is validated employing ICH (International Council on Harmonisation) guidelines. During the method development, Purospher STAR end-capped (250mm x 4.0mm), 5µm HPLC column, and gradient profile for mobile phase with constant 1.0 mL/min flow rate are used. Mobile phase A is a buffer of pH 8.5 containing 0.1% v/v of liquid ammonia in water with adjusted pH using 10% orthophosphoric acid, whereas mobile phase B is acetonitrile. The injection volume, column oven temperature, and autosampler temperature were 50 µL, 55 °C, and 5 °C, respectively. The data is acquired at 225 nm wavelength. The method yields a well-separated peak of 4-MBC from Venlafaxine and its impurities. This method is linear in the range of LOQ to 150% level of specification concentration of impurity and the observed correlation coefficient is 0.999. The repeatability and intermediate precision are evaluated and the respective values of %RSD for 4-MBC content are 0.43 and 0.93. Robustness studies show insignificant change for the system suitability criteria like %RSD, theoretical plates, and tailing factor, their values being well within the acceptance limit. The new method for the quantification of genotoxic impurity 4-MBC is precise, sensitive, rugged, and accurate; it also qualifies all the criteria of stability, linearity, and robustness.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"101 13","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139154124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kishore Kumar Y B, Suresh Babu G, Swapna Smitha A S, Surya Sekhar Reddy M, Kiran Y B
Cu2ZnSnS4 (CZTS) presents itself as a potential quaternary semiconductor absorber layer in the field of thin film heterojunction solar cells. The conventional spray pyrolysis method has been used in the present investigation. X-ray diffraction results confirm the structure of the deposited films as kesterite. The lattice parameters are determined to be a = 0.5436 nm and c = 1.0856 nm. The material exhibits an energy gap of 1.5 eV and an optical absorption coefficient exceeding 104 /cm. CZTS films exhibit a p-type nature. The deposited films are kept on the hot surface for some time after the chemical spray pyrolysis is finished, which contributes to improved crystallinity. Using chemical synthesis techniques, a Cu2ZnSnS4 thin film solar cell is constructed. These solar cells exhibited an efficiency of 0.5%. Ongoing efforts are directed towards achieving reasonable efficiency levels.
在薄膜异质结太阳能电池领域，Cu2ZnSnS4（CZTS）是一种潜在的四元半导体吸收层。本研究采用了传统的喷雾热解方法。X 射线衍射结果证实了沉积薄膜的结构为 Kesterite。晶格参数被确定为 a = 0.5436 nm，c = 1.0856 nm。这种材料的能隙为 1.5 eV，光吸收系数超过 104 /cm。CZTS 薄膜具有 p 型性质。化学喷雾热解结束后，沉积薄膜会在热表面停留一段时间，这有助于提高结晶度。利用化学合成技术，构建了 Cu2ZnSnS4 薄膜太阳能电池。这些太阳能电池的效率为 0.5%。目前正在努力实现合理的效率水平。
{"title":"Cu2ZnSnS4 Thin Film Solar Cell Construction Using Chemical Technique","authors":"Kishore Kumar Y B, Suresh Babu G, Swapna Smitha A S, Surya Sekhar Reddy M, Kiran Y B","doi":"10.13005/ojc/390622","DOIUrl":"https://doi.org/10.13005/ojc/390622","url":null,"abstract":"Cu2ZnSnS4 (CZTS) presents itself as a potential quaternary semiconductor absorber layer in the field of thin film heterojunction solar cells. The conventional spray pyrolysis method has been used in the present investigation. X-ray diffraction results confirm the structure of the deposited films as kesterite. The lattice parameters are determined to be a = 0.5436 nm and c = 1.0856 nm. The material exhibits an energy gap of 1.5 eV and an optical absorption coefficient exceeding 104 /cm. CZTS films exhibit a p-type nature. The deposited films are kept on the hot surface for some time after the chemical spray pyrolysis is finished, which contributes to improved crystallinity. Using chemical synthesis techniques, a Cu2ZnSnS4 thin film solar cell is constructed. These solar cells exhibited an efficiency of 0.5%. Ongoing efforts are directed towards achieving reasonable efficiency levels.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"101 4","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139154139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mohammed Mahmoud Molla-Babaker, Maher Khalid, Saad.e. Al-mukhtar Al-mukhtar
The research focuses on the synthesis and characterization of a novel xanthate ligand and their complexes with the formula [M(PhOEtXant)2], where M represents as Mn(II), Fe(II), Co(II), Ni(II), Cu(II), and Zn(II), and PhOEtXant stands for 2-Phenoxyethylxanthate. The antioxidant activities of these complexes will be evaluated by comparing them with standard natural antioxidants and ascorbic acid using the (DPPH) assay. The synthesized complexes were thoroughly characterized based on their physical properties using various spectral methods, like XRD, FTIR, NMR, AA, UV-visible, magnetic properties, and conductivity measurements. The complexes are nonelectrolytes, according to molar conductance measurements. Infrared spectra revealed that the ligand acts as a neutral bidentate moiety in all the compounds. Electronic spectra and effective magnetic moments suggested that the compounds exhibit a tetrahedral shape, which is supported by the experimental data. For further insights into the geometry, bond length, bond angle, electronic characteristics, and thermodynamic factors of the synthesized compounds, a density functional theory (DFT) approach with the basis set GGA-PBE was employed for optimization. The antioxidant evaluation using the DPPH assay demonstrated that all the complexes displayed significant radical scavenging activity when compared to the standard ascorbic acid. Remarkably, the Cu, Zn, Ni, and Mn complexes showed superior radical scavenging activities compared to the other complexes and the standard ascorbic acid. Overall, this research highlights the promising potential of the synthesized complexes as effective antioxidants, showcasing their value for further exploration in various applications related to antioxidant research and potentially in therapeutic contexts. The comprehensive characterization using a range of spectroscopic and computational techniques provides valuable insights into their structure and properties, supporting their potential applications in diverse fields of chemistry.
{"title":"Synthesis, Characterization, and Computational Study of Novel 2-Phenoxyethyl Xanthate Ligand and Complexes with some Transitions Metals","authors":"Mohammed Mahmoud Molla-Babaker, Maher Khalid, Saad.e. Al-mukhtar Al-mukhtar","doi":"10.13005/ojc/390616","DOIUrl":"https://doi.org/10.13005/ojc/390616","url":null,"abstract":"The research focuses on the synthesis and characterization of a novel xanthate ligand and their complexes with the formula [M(PhOEtXant)2], where M represents as Mn(II), Fe(II), Co(II), Ni(II), Cu(II), and Zn(II), and PhOEtXant stands for 2-Phenoxyethylxanthate. The antioxidant activities of these complexes will be evaluated by comparing them with standard natural antioxidants and ascorbic acid using the (DPPH) assay. The synthesized complexes were thoroughly characterized based on their physical properties using various spectral methods, like XRD, FTIR, NMR, AA, UV-visible, magnetic properties, and conductivity measurements. The complexes are nonelectrolytes, according to molar conductance measurements. Infrared spectra revealed that the ligand acts as a neutral bidentate moiety in all the compounds. Electronic spectra and effective magnetic moments suggested that the compounds exhibit a tetrahedral shape, which is supported by the experimental data. For further insights into the geometry, bond length, bond angle, electronic characteristics, and thermodynamic factors of the synthesized compounds, a density functional theory (DFT) approach with the basis set GGA-PBE was employed for optimization. The antioxidant evaluation using the DPPH assay demonstrated that all the complexes displayed significant radical scavenging activity when compared to the standard ascorbic acid. Remarkably, the Cu, Zn, Ni, and Mn complexes showed superior radical scavenging activities compared to the other complexes and the standard ascorbic acid. Overall, this research highlights the promising potential of the synthesized complexes as effective antioxidants, showcasing their value for further exploration in various applications related to antioxidant research and potentially in therapeutic contexts. The comprehensive characterization using a range of spectroscopic and computational techniques provides valuable insights into their structure and properties, supporting their potential applications in diverse fields of chemistry.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"7 2","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wahdini Hanifah, Yosie Andriani, Nor Atikah Mohamed Zin, D. Ryandini, Fadzillah Adibah Abdul Majid, eginer Subhan, Tengku Sifzizul Tengku Muhammad
Pneumonia is a respiratory infection caused by microorganisms including bacteria. Current treatment with antibiotics leads to bacterial resistance. An alternative treatment involves utilizing coastal plants. In this study, five parts of eleven coastal plants underwent phytochemicals screening and investigated for their antibacterial activity against five pneumonia bacteria. Cold extraction was performed using hexane and methanol, successively. Qualitative phytochemicals screening and antibacterial testing were done using several reagents and agar well diffusion method, respectively. The results revealed that almost all hexane and methanolic fractions from coastal plants showed antibacterial activity, except Vitex rotundifolia leaves. The highest activity was shown by hexane fraction of Rhodomyrtus tomentosa leaves. Among the methanolic fractions, Syzigium grande twigs exhibited the highest antibacterial property. Phytochemical screening revealed the presence of flavonoids in all active fractions, potentially correlating with their antibacterial activity. In summary, some selected coastal plants have the potential to act as anti-pneumonia bacteria agents.
肺炎是由细菌等微生物引起的呼吸道感染。目前使用抗生素治疗会导致细菌产生抗药性。另一种治疗方法是利用沿海植物。在这项研究中，对 11 种沿海植物的五个部分进行了植物化学成分筛选，并研究了它们对五种肺炎细菌的抗菌活性。冷提取先后使用正己烷和甲醇进行。分别使用几种试剂和琼脂井扩散法进行了植物化学物质定性筛选和抗菌测试。结果表明，除了蔓荆子叶外，几乎所有沿海植物的正己烷和甲醇馏分都具有抗菌活性。红景天叶的正己烷馏分活性最高。在甲醇馏分中，Syzigium grande 小枝的抗菌性能最高。植物化学筛选显示，所有活性馏分中都含有黄酮类化合物，这可能与它们的抗菌活性有关。总之，一些选定的沿海植物具有作为抗肺炎细菌制剂的潜力。
{"title":"Selected Coastal Plants as Potential Treatment for Pneumonia Disease: Determination of Their Phytochemicals and Antibacterial Activity Against some Pneumonia Bacteria","authors":"Wahdini Hanifah, Yosie Andriani, Nor Atikah Mohamed Zin, D. Ryandini, Fadzillah Adibah Abdul Majid, eginer Subhan, Tengku Sifzizul Tengku Muhammad","doi":"10.13005/ojc/390608","DOIUrl":"https://doi.org/10.13005/ojc/390608","url":null,"abstract":"Pneumonia is a respiratory infection caused by microorganisms including bacteria. Current treatment with antibiotics leads to bacterial resistance. An alternative treatment involves utilizing coastal plants. In this study, five parts of eleven coastal plants underwent phytochemicals screening and investigated for their antibacterial activity against five pneumonia bacteria. Cold extraction was performed using hexane and methanol, successively. Qualitative phytochemicals screening and antibacterial testing were done using several reagents and agar well diffusion method, respectively. The results revealed that almost all hexane and methanolic fractions from coastal plants showed antibacterial activity, except Vitex rotundifolia leaves. The highest activity was shown by hexane fraction of Rhodomyrtus tomentosa leaves. Among the methanolic fractions, Syzigium grande twigs exhibited the highest antibacterial property. Phytochemical screening revealed the presence of flavonoids in all active fractions, potentially correlating with their antibacterial activity. In summary, some selected coastal plants have the potential to act as anti-pneumonia bacteria agents.","PeriodicalId":19599,"journal":{"name":"Oriental Journal Of Chemistry","volume":"9 5","pages":""},"PeriodicalIF":0.5,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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