{"title":"Vol 16, No 2, 2021","authors":"","doi":"10.47014/16.2","DOIUrl":"https://doi.org/10.47014/16.2","url":null,"abstract":"","PeriodicalId":14654,"journal":{"name":"Jordan Journal of Chemistry","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49382721","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 series of new substituted 1,3-thiazole derivatives 10a-h were prepared via the reaction of monothiocarbohydrazones 8a-h with one equivalent of α-bromoketones in ethanol. Similarly, another series of new substituted 1,3,4-thiadiazines 11a-e were prepared from the reaction of monothiocarbohydrazones 8i,j with one equivalent of α-bromoketones in ethanol. The resulting products were obtained as colored crystals in moderate to good yields. All new compounds are fully characterized by 1H-, 13C-NMR, IR and elemental analysis. Pharmacophore modeling study of four of the synthesized compounds revealed that at least two of them have potential biological activities. Some of these activities will be investigated experimentally in the lab.
{"title":"Cyclization Reactions of Mono-Thiocarbohydrazones with α-Haloketones: Synthesis and Potential Biological Activities of Substituted 1,3-thiazoles and 1,3,4-thiadiazines","authors":"","doi":"10.47014/16.2.1","DOIUrl":"https://doi.org/10.47014/16.2.1","url":null,"abstract":"A series of new substituted 1,3-thiazole derivatives 10a-h were prepared via the reaction of monothiocarbohydrazones 8a-h with one equivalent of α-bromoketones in ethanol. Similarly, another series of new substituted 1,3,4-thiadiazines 11a-e were prepared from the reaction of monothiocarbohydrazones 8i,j with one equivalent of α-bromoketones in ethanol. The resulting products were obtained as colored crystals in moderate to good yields. All new compounds are fully characterized by 1H-, 13C-NMR, IR and elemental analysis. Pharmacophore modeling study of four of the synthesized compounds revealed that at least two of them have potential biological activities. Some of these activities will be investigated experimentally in the lab.","PeriodicalId":14654,"journal":{"name":"Jordan Journal of Chemistry","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47632213","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}
Eight historical textile objects belonging to the 16th-20th centuries in the collection of the Topkapi Palace Museum in Istanbul were analyzed with the purpose of reaching improved conservation and restoration methods. The historical textiles underwent dyestuff analysis by High Performance Liquid Chromatography, morphological and elemental analysis by Scanning Electron Microscope with energy Dispersive X-ray Spectroscopy, CIEL*a*b color measurement as well as technical analysis by optical microscopy.
{"title":"Silk Textiles from the Topkapi Palace Museum, Istanbul: An Analytical Study","authors":"","doi":"10.47014/16.2.3","DOIUrl":"https://doi.org/10.47014/16.2.3","url":null,"abstract":"Eight historical textile objects belonging to the 16th-20th centuries in the collection of the Topkapi Palace Museum in Istanbul were analyzed with the purpose of reaching improved conservation and restoration methods. The historical textiles underwent dyestuff analysis by High Performance Liquid Chromatography, morphological and elemental analysis by Scanning Electron Microscope with energy Dispersive X-ray Spectroscopy, CIEL*a*b color measurement as well as technical analysis by optical microscopy.","PeriodicalId":14654,"journal":{"name":"Jordan Journal of Chemistry","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45372219","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}
Thermal analysis was performed to evaluate the impact of the addition of oil shale ash (OSA) to high-density polyethylene (HDPE) polymer matrix using differential scanning calorimetry (DSC) and thermo-gravimetric analysis (TGA). Extrusion and press molding processes were used to compound the OSA-filled HDPE polymer composites containing 0, 5, 15 and 25 wt% OSA, for which the thermal properties and the characteristics of the composites were studied. Investigation of the thermal properties of the OSA-HDPE composite is necessary for selecting processing conditions and the appropriate application field. The DSC results demonstrated that OSA addition only marginally affected the glass transition temperature Tg of the composite formulations. The melting temperature Tm showed a decreasing trend with increased OSA fraction, while the crystallization temperature Tcryst showed an increasing trend. The heat of fusion ∆Hm, the heat of crystallization ∆Hcryst and the percentage of crystallinity decreased on the addition of OSA filler. The TGA results demonstrated that the thermal stability of the polymer composite matches that of the neat polymer behavior up to 350 °C after which the thermal stability of the filled polymer composite increases with increased filler content. Above 360 °C, the weight loss of the neat polymer as well as of the polymer composite is accelerated up to 480 °C where all tested samples become fully degraded.
{"title":"Thermal Analysis of Oil Shale Ash-filled High-density Polyethylene Composites","authors":"","doi":"10.47014/16.2.2","DOIUrl":"https://doi.org/10.47014/16.2.2","url":null,"abstract":"Thermal analysis was performed to evaluate the impact of the addition of oil shale ash (OSA) to high-density polyethylene (HDPE) polymer matrix using differential scanning calorimetry (DSC) and thermo-gravimetric analysis (TGA). Extrusion and press molding processes were used to compound the OSA-filled HDPE polymer composites containing 0, 5, 15 and 25 wt% OSA, for which the thermal properties and the characteristics of the composites were studied. Investigation of the thermal properties of the OSA-HDPE composite is necessary for selecting processing conditions and the appropriate application field. The DSC results demonstrated that OSA addition only marginally affected the glass transition temperature Tg of the composite formulations. The melting temperature Tm showed a decreasing trend with increased OSA fraction, while the crystallization temperature Tcryst showed an increasing trend. The heat of fusion ∆Hm, the heat of crystallization ∆Hcryst and the percentage of crystallinity decreased on the addition of OSA filler. The TGA results demonstrated that the thermal stability of the polymer composite matches that of the neat polymer behavior up to 350 °C after which the thermal stability of the filled polymer composite increases with increased filler content. Above 360 °C, the weight loss of the neat polymer as well as of the polymer composite is accelerated up to 480 °C where all tested samples become fully degraded.","PeriodicalId":14654,"journal":{"name":"Jordan Journal of Chemistry","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70656282","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}
Fatma U. Afifi, Mohammad A. Al-Mterin, Nour H Aboalhaija, Ismail F. Abaza, Mohammad H. Kailani, Malek A. Zihlif
The purpose of the present study was to identify, by gas chromatography (GC) and GC-mass spectrometry (GC-MS), the components of the spontaneously emitted volatile organic compounds (VOCs), obtained by Solid-Phase-Micro-Extraction (SPME) and that of the hydrodistilled oil of the fresh flowers and leaves of Ononis natrix, as well as to compare them. The hydrodistilled leaf oil was rich in non-terpenoid aldehydes, whereas its aroma profile contained mainly sesquiterpene hydrocarbons with α-copaene and germacrene D as their major components. The hydrodistilled oil of the fresh flowers, however, revealed nearly equal amounts of terpenoid and non-terpenoid compounds; 51.00% and 46.54%, respectively. The aroma profile of the fresh flowers was dominated by monoterpene hydrocarbons with α-pinene (42.96%) and α-thujene (20.17%) as the predomi¬nant two monoterpenes. Based on the high total phenol and flavonoid contents of the water and ethanol extracts, LC-MS analysis was carried out to identify the major compounds from each sample. From the water extract, eleven compounds were identified, whereas the ethanol extract contained eight, whereby luteolin (from the water extract) and apigenin (from the ethanol one) were named as the major flavonoids, respectively.
{"title":"Chromatographic Analysis (LC-MS and GC-MS), Antioxidant Activity, Total Phenol and Total Flavonoid Determination of Ononis natrix L. Grown in Jordan","authors":"Fatma U. Afifi, Mohammad A. Al-Mterin, Nour H Aboalhaija, Ismail F. Abaza, Mohammad H. Kailani, Malek A. Zihlif","doi":"10.47014/16.1.4","DOIUrl":"https://doi.org/10.47014/16.1.4","url":null,"abstract":"The purpose of the present study was to identify, by gas chromatography (GC) and GC-mass spectrometry (GC-MS), the components of the spontaneously emitted volatile organic compounds (VOCs), obtained by Solid-Phase-Micro-Extraction (SPME) and that of the hydrodistilled oil of the fresh flowers and leaves of Ononis natrix, as well as to compare them. The hydrodistilled leaf oil was rich in non-terpenoid aldehydes, whereas its aroma profile contained mainly sesquiterpene hydrocarbons with α-copaene and germacrene D as their major components. The hydrodistilled oil of the fresh flowers, however, revealed nearly equal amounts of terpenoid and non-terpenoid compounds; 51.00% and 46.54%, respectively. The aroma profile of the fresh flowers was dominated by monoterpene hydrocarbons with α-pinene (42.96%) and α-thujene (20.17%) as the predomi¬nant two monoterpenes. Based on the high total phenol and flavonoid contents of the water and ethanol extracts, LC-MS analysis was carried out to identify the major compounds from each sample. From the water extract, eleven compounds were identified, whereas the ethanol extract contained eight, whereby luteolin (from the water extract) and apigenin (from the ethanol one) were named as the major flavonoids, respectively.","PeriodicalId":14654,"journal":{"name":"Jordan Journal of Chemistry","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70656084","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}
An electrochemical probe, highly sensitive for the detection of two colorants; sunset yellow (SY) and tartrazine (TZ), was examined. The probe was fabricated by modifying carbon electrodes with an iron-zirconium binary transition metal oxide, Fe2Zr2O7. In the presence of the oxide, SY and TZ exhibit well resolved oxidation peaks at 0.80 and 1.0 V, respectively, in pH 2.00 buffer solution. The developed method exhibits linear response in the range 1.9×10–5– 2.7×10–4 M for both SY and TZ. The corresponding limits of detection were found to be 5.7×10–6 M for SY and 1.3×10–5 M for TZ.
一种电化学探针，对两种着色剂的检测高度敏感;日落黄(SY)和酒黄石(TZ)。探针是用铁锆二元过渡金属氧化物Fe2Zr2O7修饰碳电极制成的。在pH为2.00的缓冲溶液中，SY和TZ分别在0.80和1.0 V处表现出良好的氧化峰。该方法对SY和TZ在1.9×10-5 - 2.7×10-4 M范围内均表现出线性响应。SY的检出限为5.7×10-6 M, TZ的检出限为1.3×10-5 M。
{"title":"Electrochemical Determination of Sunset Yellow and Tartrazine at Carbon Electrodes Modified by Fe-Zr Oxide","authors":"","doi":"10.47014/15.3.3","DOIUrl":"https://doi.org/10.47014/15.3.3","url":null,"abstract":"An electrochemical probe, highly sensitive for the detection of two colorants; sunset yellow (SY) and tartrazine (TZ), was examined. The probe was fabricated by modifying carbon electrodes with an iron-zirconium binary transition metal oxide, Fe2Zr2O7. In the presence of the oxide, SY and TZ exhibit well resolved oxidation peaks at 0.80 and 1.0 V, respectively, in pH 2.00 buffer solution. The developed method exhibits linear response in the range 1.9×10–5– 2.7×10–4 M for both SY and TZ. The corresponding limits of detection were found to be 5.7×10–6 M for SY and 1.3×10–5 M for TZ.","PeriodicalId":14654,"journal":{"name":"Jordan Journal of Chemistry","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41401413","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}
Abstract: Preliminary phytochemical screening of the n-butanol fraction of the methanol leaf extract of Sarcocephalus latifoliuswas carried out;its phenolic contents were quantified by HPLC. The in vitroantihyperglycemic and antioxidant activities of the fraction were evaluated.The results of the present study indicated that the leaves’extract contained phytochemicals,like phenols, flavonoids, alkaloids and glycosides.Phenolic compounds,such as garlic acid, catechin, ferrulic acid, p-coumaric acid, apigen-7-glucose, kaemferol, quercetin and amentoflavone,were quantified by HPLC. Moreover, the fraction of leaves’extract of S.latifoliusdemonstrated significant antioxidant and antihyperglyce-mic activities.The presence of these phytochemicals,especially phenols and flavonoids,in the leavesof S.latifoliustherefore justifiesitsmedicinal usefulness,as this plant has the potential to protect oxidative stress-induced ailments
{"title":"HPLC Profile of Phenolic Contents, Antioxidant and Antidiabetic Activities of Methanolic Extract of the Leaves of Sarcocephalus latifolius(Bruce, Smith) Grown in North Central Geopolitical Zone, Nigeria","authors":"","doi":"10.47014/15.3.1","DOIUrl":"https://doi.org/10.47014/15.3.1","url":null,"abstract":"Abstract: Preliminary phytochemical screening of the n-butanol fraction of the methanol leaf extract of Sarcocephalus latifoliuswas carried out;its phenolic contents were quantified by HPLC. The in vitroantihyperglycemic and antioxidant activities of the fraction were evaluated.The results of the present study indicated that the leaves’extract contained phytochemicals,like phenols, flavonoids, alkaloids and glycosides.Phenolic compounds,such as garlic acid, catechin, ferrulic acid, p-coumaric acid, apigen-7-glucose, kaemferol, quercetin and amentoflavone,were quantified by HPLC. Moreover, the fraction of leaves’extract of S.latifoliusdemonstrated significant antioxidant and antihyperglyce-mic activities.The presence of these phytochemicals,especially phenols and flavonoids,in the leavesof S.latifoliustherefore justifiesitsmedicinal usefulness,as this plant has the potential to protect oxidative stress-induced ailments","PeriodicalId":14654,"journal":{"name":"Jordan Journal of Chemistry","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42326489","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}
Abstract: Novel quinazoline derivatives were synthesized viathe reaction of unsaturated carbonyl compound subsidiaries with 3-aminotriazole. These compounds are convenient and important intermediates for the synthesis of a rangeof useful and novel heterocyclic compounds. The structures of these compounds were characterized using elemental analysis and IR, 1H NMR and mass spectroscopic methods.They were also tested with respect to their anti-bacterial activity against two types of bacteria,Staphylococcus aureusand Pseudomonas aeruginosa. Significant anti-bacterial activity was observed,and the results indicate the favorable effect of electron-releasing substituents on anti-bacterial activity
{"title":"Synthesis, Characterization and Biological Activity of (E)-9-Benzylidene-5-phenyl-5,6,7,8,9,10-hexahydro-[1,2,4]triazolo[3,4-ɑ]quinazoline","authors":"","doi":"10.47014/15.3.2","DOIUrl":"https://doi.org/10.47014/15.3.2","url":null,"abstract":"Abstract: Novel quinazoline derivatives were synthesized viathe reaction of unsaturated carbonyl compound subsidiaries with 3-aminotriazole. These compounds are convenient and important intermediates for the synthesis of a rangeof useful and novel heterocyclic compounds. The structures of these compounds were characterized using elemental analysis and IR, 1H NMR and mass spectroscopic methods.They were also tested with respect to their anti-bacterial activity against two types of bacteria,Staphylococcus aureusand Pseudomonas aeruginosa. Significant anti-bacterial activity was observed,and the results indicate the favorable effect of electron-releasing substituents on anti-bacterial activity","PeriodicalId":14654,"journal":{"name":"Jordan Journal of Chemistry","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41382601","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}
The present study describes the optimization and validation of a high-performance liquid chromatographic (HPLC) method for the determination of seven medicines (Metformin hydrochloride, Vildagliptin, Gliclazide, Sitagliptin phosphate, Pioglitazone hydrochloride, Glibenclamide and Glimepirde) in bulk and pharmaceutical dosage forms. The chromatographic separation could be achieved using a C8 column (100 Å, 5 µm, 150 mm) at 30 °C. Thereby, the mobile phase is a mixture of acetonitrile and an aqueous solution of triethylamine (0.5% v/v) and phosphoric acid 10% w/v (pH 7.0) at a mixing ratio of 32.5:67.5 v/v%, with a flow rate of 1.0 ml/min and detection performed at 210 nm using a UV detector. The results were found satisfactory and the method can be adapted to routine quality control of medications as recommended by the guidelines of the International Conference on Harmonization.
{"title":"Rapid and Simultaneous Analysis of Seven Oral Anti-Diabetic Drugs","authors":"","doi":"10.47014/15.3.4","DOIUrl":"https://doi.org/10.47014/15.3.4","url":null,"abstract":"The present study describes the optimization and validation of a high-performance liquid chromatographic (HPLC) method for the determination of seven medicines (Metformin hydrochloride, Vildagliptin, Gliclazide, Sitagliptin phosphate, Pioglitazone hydrochloride, Glibenclamide and Glimepirde) in bulk and pharmaceutical dosage forms. The chromatographic separation could be achieved using a C8 column (100 Å, 5 µm, 150 mm) at 30 °C. Thereby, the mobile phase is a mixture of acetonitrile and an aqueous solution of triethylamine (0.5% v/v) and phosphoric acid 10% w/v (pH 7.0) at a mixing ratio of 32.5:67.5 v/v%, with a flow rate of 1.0 ml/min and detection performed at 210 nm using a UV detector. The results were found satisfactory and the method can be adapted to routine quality control of medications as recommended by the guidelines of the International Conference on Harmonization.","PeriodicalId":14654,"journal":{"name":"Jordan Journal of Chemistry","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43650890","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 Schiff base, 2-[4-(N,N-dimethylamino)benzylidene]benzoic acid has been synthesized by the condensation of 4-(N,N-dimethylamino)benzaldehyde and 2-amino-benzoic acid in 1:1 molar stoichiometry. The Schiff base complexes were synthesized from the chloride salts of Fe(II), Cu(II) and Zn(II) in ethanolic medium and elucidated by infrared spectroscopy, CHN elemental analysis, atomic absorption spectroscopy as well as conductivity and magnetic susceptibility measurements. The solubility and thermal stability were also determined. The metal(II) complexes are coloured solids that are soluble in DMF and DMSO. The melting point of the Schiff base was found to be 177 oC, while the complexes decompose within a temperature range of 202–261 oC suggestive of rather good thermal stability. The molar conductance values were low, indicating non-electrolytic nature of the complexes. Elemental analysis revealed that the stoichiometries of the synthesized complexes are of 1:2 metal-to-ligand ratio. All complexes were hydrated. The spectroscopic and magnetic susceptibility data revealed that the complexes possess four- coordinate distorted square planar stereochemistry, whereas the Schiff base behaves as monoanionic bidentate ligand with the nitrogen atom of the azomethine (C=N) and carboxylate oxygen (COO-) as donor sites. The Schiff base and its corresponding metal(II) complexes were assayed against a number of bacterial and fungal strains to evaluate their inhibitory potentials. All the complexes showed significant bactericidal and fungicidal activities against the tested organisms.
{"title":"Synthesis, Characterization and Biocidal Activity of Some Schiff Base Metal(II) Complexes","authors":"","doi":"10.47014/15.3.5","DOIUrl":"https://doi.org/10.47014/15.3.5","url":null,"abstract":"A Schiff base, 2-[4-(N,N-dimethylamino)benzylidene]benzoic acid has been synthesized by the condensation of 4-(N,N-dimethylamino)benzaldehyde and 2-amino-benzoic acid in 1:1 molar stoichiometry. The Schiff base complexes were synthesized from the chloride salts of Fe(II), Cu(II) and Zn(II) in ethanolic medium and elucidated by infrared spectroscopy, CHN elemental analysis, atomic absorption spectroscopy as well as conductivity and magnetic susceptibility measurements. The solubility and thermal stability were also determined. The metal(II) complexes are coloured solids that are soluble in DMF and DMSO. The melting point of the Schiff base was found to be 177 oC, while the complexes decompose within a temperature range of 202–261 oC suggestive of rather good thermal stability. The molar conductance values were low, indicating non-electrolytic nature of the complexes. Elemental analysis revealed that the stoichiometries of the synthesized complexes are of 1:2 metal-to-ligand ratio. All complexes were hydrated. The spectroscopic and magnetic susceptibility data revealed that the complexes possess four- coordinate distorted square planar stereochemistry, whereas the Schiff base behaves as monoanionic bidentate ligand with the nitrogen atom of the azomethine (C=N) and carboxylate oxygen (COO-) as donor sites. The Schiff base and its corresponding metal(II) complexes were assayed against a number of bacterial and fungal strains to evaluate their inhibitory potentials. All the complexes showed significant bactericidal and fungicidal activities against the tested organisms.","PeriodicalId":14654,"journal":{"name":"Jordan Journal of Chemistry","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45016942","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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