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P NMR studies on the ligand dissociation of trinuclear molybdenum cluster compounds
Author(s) -
Li ZhaoJi,
Qin YeYan,
Tang YanHong,
Kang Yao,
Xia Ji,
Chen Zhong,
Wu Ling,
Yao YuanGen
Publication year - 2003
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.20030210914
Subject(s) - chemistry , carboxylate , ligand (biochemistry) , dissociation (chemistry) , molybdenum , benzene , pyridine , stereochemistry , solvent , cluster (spacecraft) , nuclear magnetic resonance spectroscopy , medicinal chemistry , proton nmr , crystallography , inorganic chemistry , organic chemistry , biochemistry , receptor , computer science , programming language
A series of carboxylate‐substituted trinuclear molybdenum cluster compounds formulated as Mo 3 S 4 (DTP) 3 (RCO 2 )(L), where R = H, CH 3 , C 2 H 5 , CH 2 Cl, CCl 3 , R 1 C 6 H 4 (R 1 is the group on the benzene ring of aromatic carboxylate), L = pyridine, CH 3 CN, DMF, have been synthesized by the ligand substitution reaction. The dissociation of the loosely‐coordinated ligand L from the cluster core was studied by 31 P NMR. The dissociation process of L is related to the solvent, temperature, and acidity of carboxylate groups, so as to affect the solution structure and reactive properties of the cluster. The long‐distance interaction between ligands RCO 2 and L is transported by Mo 3 S 4 core.