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Synthesis, X-ray crystal structures, and electrochemistry of two diiron ethane-1,2-dithiolate complexes containing tris(4-trifluoromethylphenyl)phosphine or triethyl phosphite
Published in Inorganic and Nano-Metal Chemistry, 2022
Fei-Yan Chen, Ling-Hui Wang, Wen-Jing Tian, Xu-Feng Liu, Yu-Long Li, Xing-Hai Liu, Zhong-Qing Jiang
In summary, we have presented the synthesis of two diiron ethane-1,2-dithiolate complexes by carbonyl substitution of the hexacarbonyl complex with a phosphine ligand tris(4-trifluoromethylphenyl)phosphine or a phosphite ligand triethyl phosphite. Both complexes have been characterized by elemental analysis and various spectroscopic techniques. In addition, X-ray crystallographic studies revealed that they contain a butterfly diiron ethane-1,2-dithiolate cluster with five terminal carbonyls and an apically-coordinated phosphine or phosphite ligand. Electrochemical studies showed that both complexes can catalyze the reduction of protons to H2 in the presence of HOAc.