Dimeric Dioxomolybdenum(VI) and Oxomolybdenum(V) Complexes with Citrate at Very Low pH and Neutral Conditions
作者:Zhao-Hui Zhou、Yuan-Fu Deng、Ze-Xing Cao、Rong-Hua Zhang、Yuan L. Chow
DOI:10.1021/ic048330y
日期:2005.10.1
novel dimeric dioxomolybdenum(VI) citrate complex, K[(MoO2)2-(OH)(H2cit)2].4H2O (1), with weak coordination of beta-carboxylic acid groups and the first structural example of an oxomolybdenum(V) citrate complex, (NH4)6[Mo2O4(cit)2].3H2O (2) (H4cit = citricacid), are isolated in a very acidic solution (pH 0.5-1.0) and neutral conditions (pH 7.0-8.0), respectively. Complex1 displays strong double hydrogen
Synthesis, structure, and fluorescence of two cadmium(II)-citrate coordination polymers with different coordination architectures
作者:Yu-Mei Dai、Jian-Kai Cheng、Jian Zhang、En Tang、Zhao-Ji Li、Yi-Hang Wen、Yuan-Gen Yao
DOI:10.1016/j.molstruc.2005.01.031
日期:2005.4
Abstract Two novel Cd(II)-citrate complexes were obtained with different metal/ligand ratios through hydrothermal method. Their structures were determined by single-crystal X-ray diffraction analysis. Although their topological structures are both 2-D layer network assemblies, both central Cd(II) ions and Hcit 3− ligands display completely differentcoordination modes. In polymeric complex 1 , Hcit 3−