无机化学期刊(英文)最新文献_第3页

Synthesis and Characterization of Cr(III) & Fe(II) Bis(2-Methoxybenzylidene)Biphenyl-4,4'-Diamine Complexes Cr(III)和Fe(II)双(2-甲氧基苄基)联苯-4,4′-二胺配合物的合成与表征

无机化学期刊(英文) Pub Date : 2020-01-20 DOI: 10.4236/ojic.2020.101002

Y. B. Amer, Rehab. N. El-daghare, A. Hammouda, R. El-Ferjani, F. Elmagbari

引用次数: 3

Synthesis, Spectroscopic Studies and X-Ray Diffraction of Heptacoordinated Mn(II) and Co(II) Complexes with Ligands Derived from Carbonohydrazide 碳酰肼配体七配位Mn(II)和Co(II)配合物的合成、光谱研究和x射线衍射

无机化学期刊(英文) Pub Date : 2019-09-23 DOI: 10.4236/ojic.2019.94004

T. Seck, A. Sy, Djiby Lo, Papa Aly Gaye, M. L. Sall, O. Diouf, M. Diaw, M. Gaye

{"title":"Synthesis, Spectroscopic Studies and X-Ray Diffraction of Heptacoordinated Mn(II) and Co(II) Complexes with Ligands Derived from Carbonohydrazide","authors":"T. Seck, A. Sy, Djiby Lo, Papa Aly Gaye, M. L. Sall, O. Diouf, M. Diaw, M. Gaye","doi":"10.4236/ojic.2019.94004","DOIUrl":"https://doi.org/10.4236/ojic.2019.94004","url":null,"abstract":"The ligand 1-(1-(pyridin-2-yl)ethylidene)carbonohydrazide (H4L1) and 1-(pyridin-2-ylmethylene)carbonohydrazide (H4L2) were prepared by reaction of carbonohydrazide with 2-acetylpyridine or pyridine carbaldehyde respectively in a reflux methanol solution. The complexes are prepared by reaction of the ligand with the appropriate metal salt. These complexes are well characterized by elemental analysis, IR and UV spectroscopies and their structure were determined by single X-ray diffraction technic. In the crystal of the dinuclear complex [Mn2(H4L1)2(H2O)4]·Cl4, 1) each Mn(II) center is seven coordinated by two nitrogen atom and one carbonyl atom of the one ligand and one nitrogen atom and one carbonyl oxygen atom of another ligand molecule. The coordination sphere is completed by two water molecules. Each of the carbonyl oxygen atom acts as bridge between the two Mn(II) centers. In the mononuclear complex [Co(H4L2)(NO3)(H2O)2]·(NO3); 2) the Co(II) center is heptacoordinated. The ligand acts in tridentate fashion through two nitrogen atoms and one carbonyl oxygen atom. Two water molecules lie in the apical positions. One nitrate group acts in bidentate manner while the other nitrate group remains uncoordinated. In both complexes the coordination polyhedral are best described as a pentagonal bipyramid. The molecules are linked together in each case by multiple hydrogen bond interaction resulting in a three-dimensional network. The crystallographic data has been deposited in Cambridge Crystallographic Data Centre [CCDC No. 1944387 (complex 1) and 1944386 (complex 2)].","PeriodicalId":70986,"journal":{"name":"无机化学期刊(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43763560","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}

引用次数: 5

Physicochemical Characterization and Valorization of Clay from Lobo and Ngoya in Cameroon Central Region 喀麦隆中部地区Lobo和Ngoya粘土的理化特征和Valorization

无机化学期刊(英文) Pub Date : 2019-06-20 DOI: 10.4236/OJIC.2019.93003

N. Mominou, M. J. Richard, Sabo Ina Aicha

引用次数: 4

Synthesis and Characterization of a New Compound of Cobalt II with Isonicotinamide and Evaluation of the Bactericidal Potential 新型钴Ⅱ与异烟酰胺化合物的合成、表征及杀菌潜力评价

无机化学期刊(英文) Pub Date : 2019-04-28 DOI: 10.4236/OJIC.2019.92002

Anderson Dourado Galvão, Fabricio Tarso de Moraes, C. Sousa, Katia Meirelles Duarte de Sousa, Patrícia Gelli Feres de Marchi, A. França, E. L. França, Wagner Batista dos Santos

{"title":"Synthesis and Characterization of a New Compound of Cobalt II with Isonicotinamide and Evaluation of the Bactericidal Potential","authors":"Anderson Dourado Galvão, Fabricio Tarso de Moraes, C. Sousa, Katia Meirelles Duarte de Sousa, Patrícia Gelli Feres de Marchi, A. França, E. L. França, Wagner Batista dos Santos","doi":"10.4236/OJIC.2019.92002","DOIUrl":"https://doi.org/10.4236/OJIC.2019.92002","url":null,"abstract":"In this work, the isonicotinamide was coordinated to the Cobalt ion in oxidation state +2. The relevance of this work is the investigation of the in vitro bactericidal potential of the synthesized complex when tested in Gram-positive and negative bacteria strains. This study is motivated by the need to obtain new materials that have antibiotic properties and that, in the future, may become an effective drug against resistant bacteria. A new coordination compound of Cobalt and isonicotinamide, [Co(H2O)(isn)3](BF4)2, was synthesized and described. The compound was characterized by thermoanalytical techniques TG-DTG and TG-DSC, where it was possible to propose the mechanism of thermal decomposition. Through the spectroscopy in the region of the medium infrared (FTIR), it is possible to infer the site of connection between isonicotinamide and metal. The bactericidal activity of [Co(H2O)(isn)3](BF4)2, CoCl2 and free Isonicotinamide were tested for the bacteria Streptococcus mutans (Gram+) and Escherichia coli (Gram−) and the synthesized compound showed to be sensitive for both bacteria.","PeriodicalId":70986,"journal":{"name":"无机化学期刊(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44718061","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}

引用次数: 2

Micellar Effect on Photoinduced Electron Transfer Reactions of Ruthenium(II) Polypyridyl Complexes with Quinones: Effect of CTAB 钌(II)多吡啶基与醌配合物光致电子转移反应的胶束效应:CTAB的作用

无机化学期刊(英文) Pub Date : 2019-01-30 DOI: 10.4236/ojic.2019.91001

T. S. Celin, G. Raj

引用次数: 0