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New Mixed‐Ligand Re V Complexes with Bis(2‐mercaptoethyl) Sulfide and Functionalized Thioimidazolyl Ligands
Author(s) -
Palma Elisa,
Correia João D. G.,
Domingos Ângela,
Santos Isabel
Publication year - 2002
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/1099-0682(200209)2002:9<2402::aid-ejic2402>3.0.co;2-0
Subject(s) - chemistry , denticity , trigonal bipyramidal molecular geometry , ligand (biochemistry) , crystallography , sulfide , square pyramidal molecular geometry , atom (system on chip) , stereochemistry , crystal structure , organic chemistry , biochemistry , receptor , computer science , embedded system
The preparation of the mixed‐ligand Re V complexes [Re(O)(κ 3 ‐SSS)(κ 1 ‐Simz)] ( 1 ), [Re(O)(κ 3 ‐SSS)(κ 1 ‐Simz)]·HCl ( 2 ) and [Re(O)(κ 3 ‐SSS)(κ 1 ‐SimzCOGlyGly)] ( 3 ) are described. These [3+1] type compounds are stabilized by tridentate bis(2‐mercaptoethyl) sulfide (HSSSH) and by monodentate functionalized thioimidazolyl ligands. Complexes 1 , 2 and 3 were fully characterized by IR and 1 H NMR spectroscopy, and by X‐ray diffraction analysis in the case of 1 and 2 . In complexes 1 and 2 the Re atom is five‐coordinate, presenting a distorted square pyramidal coordination geometry. Based on the angular structural parameter, τ, this distortion lies towards a trigonal bipyramidal geometry (τ = 0.40, 1 ; τ = 0.46, 2 ). (© Wiley‐VCH Verlag GmbH, 69451 Weinheim, Germany, 2002)