Pub Date : 2016-05-16DOI: 10.1080/15533174.2015.1137068
Zihong Pan, G. Zhao, L. Xue, Wei-chun Yang
A new manganese(III) complex, [Mn(L1)(CH3OH)(dca)] 1, and a new iron(III) complex, [Fe(L2)(CH3OH)(NCS)] 2, for which dca is dicyanoamide anion, and L1 and L2 are the dianionic form of N,N′-3,4-methylphenylenebis(5-methylsalicylaldimine) and N,N′-bis(5-methylsalicylidene)-o-phenylenediamine, respectively, have been prepared and characterized by elemental analyses, IR, and single-crystal X-ray crystallographic determination. The crystal of complex 1 is orthorhombic: space group Pna21, a = 14.6557(6), b = 10.8906(5), c = 15.0536(7) Å, V = 2402.7(2) Å3, Z = 4, R1 = 0.0321, wR2 = 0.0715. The crystal of complex 2 is monoclinic: space group C2/c, a = 14.6798(9), b = 11.1306(7), c = 27.831(1) Å, β = 93.782(2)°, V = 4537.6(5) Å3, Z = 8, R1 = 0.0423, wR2 = 0.1027. The bis-Schiff base ligands coordinate to the metal center through phenolate O and imine N atoms. Both the Mn and Fe atoms in the complexes are in octahedral coordination, with the equatorial donor atoms come from the Schiff base ligands, and with the axial donor atoms come from a methanol O atom and a pseudohalide N atom. The effects of the complexes on the antimicrobial activity against Staphylococcus aureus, Escherichia coli, and Candida albicans were studied.
制备了一种新的锰(III)配合物[Mn(L1)(CH3OH)(dca)] 1和一种新的铁(III)配合物[Fe(L2)(CH3OH)(NCS)] 2，其中dca为双氰酰胺阴离子，L1和L2分别为N,N ' -3,4-甲基苯基双(5-甲基水杨醛二胺)和N,N ' -双(5-甲基水杨醛二胺)-邻苯二胺的双阴离子形式，并通过元素分析、红外光谱和单晶x射线晶体学测定对其进行了表征。配合物1为正交晶系:空间群Pna21, a = 14.6557(6)， b = 10.8906(5)， c = 15.0536(7) Å， V = 2402.7(2) Å3, Z = 4, R1 = 0.0321, wR2 = 0.0715。配合物2为单斜晶:空间群C2/c, a = 14.6798(9)， b = 11.1306(7)， c = 27.831(1) Å， β = 93.782(2)°，V = 4537.6(5) Å3, Z = 8, R1 = 0.0423, wR2 = 0.1027。双希夫碱配体通过苯酚O和亚胺N原子与金属中心配位。配合物中的Mn和Fe原子均呈八面体配位，其中赤道给体原子来自席夫碱配体，轴向给体原子来自甲醇O原子和假卤化物N原子。研究了配合物对金黄色葡萄球菌、大肠杆菌和白色念珠菌的抑菌活性。
{"title":"Synthesis, Crystal Structure, and Antimicrobial Activity of Manganese(III) and Iron(III) Complexes Derived from Similar bis-Schiff Bases","authors":"Zihong Pan, G. Zhao, L. Xue, Wei-chun Yang","doi":"10.1080/15533174.2015.1137068","DOIUrl":"https://doi.org/10.1080/15533174.2015.1137068","url":null,"abstract":"A new manganese(III) complex, [Mn(L1)(CH3OH)(dca)] 1, and a new iron(III) complex, [Fe(L2)(CH3OH)(NCS)] 2, for which dca is dicyanoamide anion, and L1 and L2 are the dianionic form of N,N′-3,4-methylphenylenebis(5-methylsalicylaldimine) and N,N′-bis(5-methylsalicylidene)-o-phenylenediamine, respectively, have been prepared and characterized by elemental analyses, IR, and single-crystal X-ray crystallographic determination. The crystal of complex 1 is orthorhombic: space group Pna21, a = 14.6557(6), b = 10.8906(5), c = 15.0536(7) Å, V = 2402.7(2) Å3, Z = 4, R1 = 0.0321, wR2 = 0.0715. The crystal of complex 2 is monoclinic: space group C2/c, a = 14.6798(9), b = 11.1306(7), c = 27.831(1) Å, β = 93.782(2)°, V = 4537.6(5) Å3, Z = 8, R1 = 0.0423, wR2 = 0.1027. The bis-Schiff base ligands coordinate to the metal center through phenolate O and imine N atoms. Both the Mn and Fe atoms in the complexes are in octahedral coordination, with the equatorial donor atoms come from the Schiff base ligands, and with the axial donor atoms come from a methanol O atom and a pseudohalide N atom. The effects of the complexes on the antimicrobial activity against Staphylococcus aureus, Escherichia coli, and Candida albicans were studied.","PeriodicalId":22118,"journal":{"name":"Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89443496","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}
Pub Date : 2016-05-03DOI: 10.1080/15533174.2014.988826
M. Sabet, M. Salavati‐Niasari, Zahra Asgari Fard
Mg(OH)2 and MgO nanostructures were synthesized via simple hydrothermal method by MgSO4, ethylenediamine, and hydrazine as reagents. The products were characterized with X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and energy-dispersive X-ray spectroscopy. Different parameter's effect on product size and morphology was investigated.
{"title":"Synthesis and Characterization of Mg(OH)2 and MgO Nanostructures Via Simple Hydrothermal Method","authors":"M. Sabet, M. Salavati‐Niasari, Zahra Asgari Fard","doi":"10.1080/15533174.2014.988826","DOIUrl":"https://doi.org/10.1080/15533174.2014.988826","url":null,"abstract":"Mg(OH)2 and MgO nanostructures were synthesized via simple hydrothermal method by MgSO4, ethylenediamine, and hydrazine as reagents. The products were characterized with X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and energy-dispersive X-ray spectroscopy. Different parameter's effect on product size and morphology was investigated.","PeriodicalId":22118,"journal":{"name":"Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77727200","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}
Pub Date : 2016-05-03DOI: 10.1080/15533174.2014.989595
D. Han, C. Wang, D. Li, Z. Cao
Nanoparticles of NiO(core)/ZnO(shell) core-shell and nanoparticles were successfully prepared in Triton X-100/n-hexanol/cyclohexane/water W/O microemulsion system. Basic synthesis conditions were determined. Ni(OH)2/Zn(OH)2 nanoparticles were first synthesized at room temperature then calcined at 500°C to form NiO/ZnO nanoparticles. The calcined products were studied by means of TEM, and XRD analyzers. The mechanism of the core shell NiO/ZnO nanoparticles formation is explained.
{"title":"NiO/ZnO Core-Shell Nanoparticles In Situ Synthesis Via Microemulsion Method","authors":"D. Han, C. Wang, D. Li, Z. Cao","doi":"10.1080/15533174.2014.989595","DOIUrl":"https://doi.org/10.1080/15533174.2014.989595","url":null,"abstract":"Nanoparticles of NiO(core)/ZnO(shell) core-shell and nanoparticles were successfully prepared in Triton X-100/n-hexanol/cyclohexane/water W/O microemulsion system. Basic synthesis conditions were determined. Ni(OH)2/Zn(OH)2 nanoparticles were first synthesized at room temperature then calcined at 500°C to form NiO/ZnO nanoparticles. The calcined products were studied by means of TEM, and XRD analyzers. The mechanism of the core shell NiO/ZnO nanoparticles formation is explained.","PeriodicalId":22118,"journal":{"name":"Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87646780","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}
Magnetic multiwalled carbon nanotubes (MWNTs)/ZnS/Fe3O4 nanocomposites were prepared using Fe3O4 and ZnS nanoparticles via in situ chemical precipitation method onto the surface of MWNTs. The nanocomposites were characterized by X-ray diffraction, transmission electron microscopy, high-resolution transmission electron microscopy, and energy-dispersive X-ray spectroscopy. The results revealed that the photocatalytic activity of MWNTs/ZnS/Fe3O4 nanocomposites for methylene blue solution increased obviously compared with pure ZnS NPs. Moreover, as a magnetic material, MWNTs/ZnS/Fe3O4 nanocomposites could be easily collected from aqueous solution by an external magnet, and used repeatedly.
{"title":"Synthesis of Magnetic MWNTs/ZnS/Fe3O4 Nanocomposites and Their Enhanced Photocatalytic Activity","authors":"Xiao-jie Song, Fan-Ming Yang, Qun Fang, Hanmei Hu, Fei Xu","doi":"10.1080/15533174.2015.1031047","DOIUrl":"https://doi.org/10.1080/15533174.2015.1031047","url":null,"abstract":"Magnetic multiwalled carbon nanotubes (MWNTs)/ZnS/Fe3O4 nanocomposites were prepared using Fe3O4 and ZnS nanoparticles via in situ chemical precipitation method onto the surface of MWNTs. The nanocomposites were characterized by X-ray diffraction, transmission electron microscopy, high-resolution transmission electron microscopy, and energy-dispersive X-ray spectroscopy. The results revealed that the photocatalytic activity of MWNTs/ZnS/Fe3O4 nanocomposites for methylene blue solution increased obviously compared with pure ZnS NPs. Moreover, as a magnetic material, MWNTs/ZnS/Fe3O4 nanocomposites could be easily collected from aqueous solution by an external magnet, and used repeatedly.","PeriodicalId":22118,"journal":{"name":"Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74481125","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 copper(II) complex [Cu2(BIT)4(DMF)2]•2DMF (BIT = 1,2-benzisothiazolin-3-one, DMF = N,N-dimethylformamide) was synthesized via standing diffusion method. The structure of crystal was characterized by elemental analysis, IR spectroscopy and single-crystal X-ray diffraction. The complex crystallizes in monoclinic C2/c space group and a = 30.850 (3) Å, b = 8.5534 (8) Å, c = 21.6491 (18) Å, β= 128.487 (2)°, V = 4.4716 (7) nm3, Z = 4. The fluorescent properties of the complex was studied. Theoretical study of the complex was carried out by density functional theory B3LYP method using Gaussian 03 program. CCDC: 911350.
采用恒扩散法制备了新型铜(II)配合物[Cu2(BIT)4(DMF)2]•2DMF (BIT = 1,2-苯并异噻唑啉-3- 1,DMF = N,N-二甲基甲酰胺)。通过元素分析、红外光谱和单晶x射线衍射对晶体结构进行了表征。配合物在单斜C2/c空间群中结晶，a = 30.850 (3) Å， b = 8.5534 (8) Å， c = 21.6491 (18) Å， β= 128.487(2)°，V = 4.4716 (7) nm3, Z = 4。研究了该配合物的荧光特性。利用高斯03程序，采用密度泛函B3LYP方法对该配合物进行了理论研究。控烟条例:911350。
{"title":"Synthesis, Crystal Structure, and Theoretical Calculation of the Cu(II) Complex With 1,2-Benzisothiazolin-3-one","authors":"Xia Li, Guanhua Zhu, Lei Dong, Chunhua Ni, Xingchen Yan, Liangmin Yu","doi":"10.1080/15533174.2014.988236","DOIUrl":"https://doi.org/10.1080/15533174.2014.988236","url":null,"abstract":"A novel copper(II) complex [Cu2(BIT)4(DMF)2]•2DMF (BIT = 1,2-benzisothiazolin-3-one, DMF = N,N-dimethylformamide) was synthesized via standing diffusion method. The structure of crystal was characterized by elemental analysis, IR spectroscopy and single-crystal X-ray diffraction. The complex crystallizes in monoclinic C2/c space group and a = 30.850 (3) Å, b = 8.5534 (8) Å, c = 21.6491 (18) Å, β= 128.487 (2)°, V = 4.4716 (7) nm3, Z = 4. The fluorescent properties of the complex was studied. Theoretical study of the complex was carried out by density functional theory B3LYP method using Gaussian 03 program. CCDC: 911350.","PeriodicalId":22118,"journal":{"name":"Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88684387","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}
Pub Date : 2016-05-03DOI: 10.1080/15533174.2014.989574
Saying Li, L. Du, Zhi-Hong Liu
Two novel organic-inorganic hybrid indium complexes, [C6H11N2]2[In2(BDC)3Br2] (1) and [C7H13N2]2[In2(BDC) 3Br2] (2) (BDC2– = 1,4-benzenedicarboxylate), have been synthesized under ionothermal conditions and characterized by elemental analysis, FT-IR, and TG. Single X-ray diffraction studies revealed that compounds 1 and 2 are isostructural. Both crystallize in the monoclinic system with space group P21/c. Their structures are characterized as novel graphite-like layered structure with larger rings constructed by InO5Br polyhedra and the 1,4-benzendicarboxylate organic linkers. The used ILs cations [C6H11N2]+ are located between the layers and compensate for the negative charges of framework. Furthermore, their luminescent properties have also been studied.
{"title":"Ionothermal Synthesis, Crystal Structure, and Luminescent Properties of Two Novel Layered Indium-1,4-Benzenedicarboxylate Complexes","authors":"Saying Li, L. Du, Zhi-Hong Liu","doi":"10.1080/15533174.2014.989574","DOIUrl":"https://doi.org/10.1080/15533174.2014.989574","url":null,"abstract":"Two novel organic-inorganic hybrid indium complexes, [C6H11N2]2[In2(BDC)3Br2] (1) and [C7H13N2]2[In2(BDC) 3Br2] (2) (BDC2– = 1,4-benzenedicarboxylate), have been synthesized under ionothermal conditions and characterized by elemental analysis, FT-IR, and TG. Single X-ray diffraction studies revealed that compounds 1 and 2 are isostructural. Both crystallize in the monoclinic system with space group P21/c. Their structures are characterized as novel graphite-like layered structure with larger rings constructed by InO5Br polyhedra and the 1,4-benzendicarboxylate organic linkers. The used ILs cations [C6H11N2]+ are located between the layers and compensate for the negative charges of framework. Furthermore, their luminescent properties have also been studied.","PeriodicalId":22118,"journal":{"name":"Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86214418","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}
Pub Date : 2016-05-03DOI: 10.1080/15533174.2014.989581
Tan Hong, T. Radhika, R. J. Ramalingam, Farook Adam
Zinc-silver incorporated rice husk silica catalysts were prepared by a simple sol-gel precipitation. The FT-IR and thermal analyses are confirms the complete removal of the template after calcination at 773 K. From the XRD pattern, it could observed that zinc and silver which incorporated into rice husk silica with its characteristic crystalline form. Methylene blue (MB) was used to evaluate the photocatalytic activity of the prepared samples. During photodegradation, concentration of methylene blue was decreased within 1 h under the studied reaction condition. The incorporation of silver ions on rice husk silica improves the crystalinity and activity.
{"title":"Ag-ZnO Incorporated Silica Based Bio-Nanocomposite Prepared by Low Cost Method for Photocatalytic Dye Degradation","authors":"Tan Hong, T. Radhika, R. J. Ramalingam, Farook Adam","doi":"10.1080/15533174.2014.989581","DOIUrl":"https://doi.org/10.1080/15533174.2014.989581","url":null,"abstract":"Zinc-silver incorporated rice husk silica catalysts were prepared by a simple sol-gel precipitation. The FT-IR and thermal analyses are confirms the complete removal of the template after calcination at 773 K. From the XRD pattern, it could observed that zinc and silver which incorporated into rice husk silica with its characteristic crystalline form. Methylene blue (MB) was used to evaluate the photocatalytic activity of the prepared samples. During photodegradation, concentration of methylene blue was decreased within 1 h under the studied reaction condition. The incorporation of silver ions on rice husk silica improves the crystalinity and activity.","PeriodicalId":22118,"journal":{"name":"Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80797326","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}
Pub Date : 2016-05-03DOI: 10.1080/15533174.2014.989577
Hailou Li, Yamin Cheng, Jie Luo, P. Ma, Junwei Zhao, Lijuan Chen
Two organic–inorganic composite vanadoborates Na2(Hen)4[B18V12O60]·16H2O (1) (en = ethylenediamine) and (H2en)6[B18V12O60]2·2tepa·11H2O (2) (tepa = tetraethylenepentamine) have been hydrothermally synthesized and characterized by elemental analyses, inductively coupled plasma atomic emission spectrometry (ICP-AES) analyses, IR spectra, and X-ray crystallography. Single-crystal structural analyses show that 1 exhibits a 2-D polyoxovanadium borate sheet architecture with a four-connected topology established by [B18V12O60]6− units via Na+ bridges whereas the molecular unit of 2 consists of two discrete [B18V12O60]6− clusters, six diprotonated [H2en]2+ cations, two tepa molecules, and 11 lattice water molecules.
采用水热法合成了两种有机-无机复合钒酸盐Na2(Hen)4[B18V12O60]·16H2O (1) (en =乙二胺)和(H2en)6[B18V12O60]2·2tepa·11H2O (2) (tepa =四乙二胺)，并用元素分析、电感耦合等离子体原子发射光谱(ICP-AES)分析、红外光谱和x射线晶体学对其进行了表征。单晶结构分析表明，1表现为二维多氧钒硼酸盐片结构，具有由[B18V12O60]6 -单元通过Na+桥建立的四连接拓扑结构，而2的分子单元由两个离散的[B18V12O60]6 -簇，6个双质子化[H2en]2+阳离子，两个tepa分子和11个晶格水分子组成。
{"title":"Syntheses and Structures of Two Organic–Inorganic Composite Vanadoborates Na2(Hen)4[B18V12O60]·16H2O and (H2en)6[B18V12O60]2·2tepa·11H2O","authors":"Hailou Li, Yamin Cheng, Jie Luo, P. Ma, Junwei Zhao, Lijuan Chen","doi":"10.1080/15533174.2014.989577","DOIUrl":"https://doi.org/10.1080/15533174.2014.989577","url":null,"abstract":"Two organic–inorganic composite vanadoborates Na2(Hen)4[B18V12O60]·16H2O (1) (en = ethylenediamine) and (H2en)6[B18V12O60]2·2tepa·11H2O (2) (tepa = tetraethylenepentamine) have been hydrothermally synthesized and characterized by elemental analyses, inductively coupled plasma atomic emission spectrometry (ICP-AES) analyses, IR spectra, and X-ray crystallography. Single-crystal structural analyses show that 1 exhibits a 2-D polyoxovanadium borate sheet architecture with a four-connected topology established by [B18V12O60]6− units via Na+ bridges whereas the molecular unit of 2 consists of two discrete [B18V12O60]6− clusters, six diprotonated [H2en]2+ cations, two tepa molecules, and 11 lattice water molecules.","PeriodicalId":22118,"journal":{"name":"Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75693195","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}
Pub Date : 2016-05-03DOI: 10.1080/15533174.2014.989578
A. Pourahmad, M. Deljoopour
The synthesis of ZnCdS nanomaterial in MCM-41 matrix has been realized by chemical synthesis among MCM-41, ZnCl2, and CdCl2 via an ion exchange method in aqueous solution. X-ray diffraction analysis (XRD), diffuse reflectance spectroscopy (DRS), transmission electron microscopy (TEM), and Fourier transform infrared spectroscopy (FT-IR) were used to characterize the products. Several parameters were examined, catalyst amount (0.1–6 g L−1), pH (3–12), and initial concentration of MB (0.16–3.2 ppm). The extent of degradation was estimated from the residual concentration by spectrophotometrically. The average size of ZnCdCl2 in MCM-41 nanostructure was obtained about 3 nm by TEM.
以MCM-41为基体，采用离子交换法在水溶液中以MCM-41、ZnCl2和CdCl2为原料进行化学合成，实现了纳米材料ZnCdS的合成。采用x射线衍射分析(XRD)、漫反射光谱(DRS)、透射电子显微镜(TEM)和傅里叶变换红外光谱(FT-IR)对产物进行表征。考察了催化剂用量(0.1-6 g L−1)、pH(3-12)和MB初始浓度(0.16-3.2 ppm)等参数。用分光光度法测定残留浓度，估计降解程度。透射电镜观察到MCM-41纳米结构中ZnCdCl2的平均尺寸约为3 nm。
{"title":"Design of ZnCdS Quantum Dots Loaded on Mesoporous Silica as a UV-Light-Sensitive Photocatalyst","authors":"A. Pourahmad, M. Deljoopour","doi":"10.1080/15533174.2014.989578","DOIUrl":"https://doi.org/10.1080/15533174.2014.989578","url":null,"abstract":"The synthesis of ZnCdS nanomaterial in MCM-41 matrix has been realized by chemical synthesis among MCM-41, ZnCl2, and CdCl2 via an ion exchange method in aqueous solution. X-ray diffraction analysis (XRD), diffuse reflectance spectroscopy (DRS), transmission electron microscopy (TEM), and Fourier transform infrared spectroscopy (FT-IR) were used to characterize the products. Several parameters were examined, catalyst amount (0.1–6 g L−1), pH (3–12), and initial concentration of MB (0.16–3.2 ppm). The extent of degradation was estimated from the residual concentration by spectrophotometrically. The average size of ZnCdCl2 in MCM-41 nanostructure was obtained about 3 nm by TEM.","PeriodicalId":22118,"journal":{"name":"Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72973496","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}
Pub Date : 2016-05-03DOI: 10.1080/15533174.2014.988820
Zhen-Chuan Liao, Chao-rui Li, Zheng-yin Yang
A strong chelating ligand was synthesized through the modification of DTPA by bioactive 5-fluorouracil derivatives and characterized by means of mass spectra, Fourier transform infrared spectra, elemental analysis, and nuclear magnetic resonance spectroscopy. Its complexes of Gd(III) and Mn(II) were designed as potential MRI contrast agents. Thermodynamic stability constant of the complexes indicated that they were stable enough to prevent the metal ions from releasing. Relaxivity studies showed that the two complexes provided higher T1-weighted relaxivity than that of commercial contrast agent Gd-DTPA and the Mn(II) complex owned much higher T2-weighted relaxation property. Both the Gd(III) and Mn(II) complexes had the advantage of becoming promising T1-weighted MRI contrast agents.
{"title":"Synthesis and Evaluation of Neutral Gd(III), Mn(II) Complexes From DTPA-Bisamide Derivative as Potential MRI Contrast Agents","authors":"Zhen-Chuan Liao, Chao-rui Li, Zheng-yin Yang","doi":"10.1080/15533174.2014.988820","DOIUrl":"https://doi.org/10.1080/15533174.2014.988820","url":null,"abstract":"A strong chelating ligand was synthesized through the modification of DTPA by bioactive 5-fluorouracil derivatives and characterized by means of mass spectra, Fourier transform infrared spectra, elemental analysis, and nuclear magnetic resonance spectroscopy. Its complexes of Gd(III) and Mn(II) were designed as potential MRI contrast agents. Thermodynamic stability constant of the complexes indicated that they were stable enough to prevent the metal ions from releasing. Relaxivity studies showed that the two complexes provided higher T1-weighted relaxivity than that of commercial contrast agent Gd-DTPA and the Mn(II) complex owned much higher T2-weighted relaxation property. Both the Gd(III) and Mn(II) complexes had the advantage of becoming promising T1-weighted MRI contrast agents.","PeriodicalId":22118,"journal":{"name":"Synthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77348773","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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