Dirhenium complexes derived from the ligand 2-mercaptoquinoline (2-mqH). Structure of [Re2Cl3(.mu.-dppm)2(2-mq)]PF6 (dppm = Ph2PCH2PPh2)

Autor:	Ju Sheng Qi, Richard A. Walton, Phillip E. Fanwick
Rok vydání:	1990
Předmět:	Inorganic Chemistry Deprotonation Denticity Ligand Stereochemistry Chemistry X-ray crystallography Molecule Crystal structure Physical and Theoretical Chemistry Medicinal chemistry Monoclinic crystal system Adduct
Zdroj:	Inorganic Chemistry. 29:3787-3791
ISSN:	1520-510X 0020-1669
DOI:	10.1021/ic00344a027
Popis:	The triply bonded dirhenium complexes Re 2 X 4 (dppm) 2 (X=Cl,Br; dppm=Ph 2 PCH 2 PPh 2 ) react with 2-mercaptoquinoline (2-mqH) to afford the adducts Re 2 X 4 (dppm) 2 (2-mqH), in which the 2-mqH ligand (in its zwitterionic form) is probably bound in a monodentate fashion through its deprotonated thiol donor. These complexes undergo a reversible one-electron transfer to give [Re 2 X 4 (dppm) 2 (2-mqH)] + (isolable as their PF 6 − salts). This oxidation is followed by the slow elimination of HX to give paramagnetic [Re 2 X 3 (μ-dppm) 2 (2-mp)]PF 6 . A single-crystal X-ray structure determination of the chloride complex has been carried out at 20 o C. Crystal data are as follows: monoclinic space group P2 1 /c
Databáze:	OpenAIRE
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