Premium
The First Stable Copper( III ) Complex Containing Aliphatic Thiolates as Ligands: Structural and Spectroscopic Evidence for Cu II and Cu III Ions in Complexes with Square‐Planar CuN 2 S 2 Coordination Environments
Author(s) -
Hanss Jan,
Krüger HansJörg
Publication year - 1996
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199628271
Subject(s) - copper , chemistry , redox , ion , crystallography , coordination sphere , metal , inorganic chemistry , complex ions , metal ions in aqueous solution , polymer chemistry , stereochemistry , medicinal chemistry , crystal structure , organic chemistry
Although it was once deemed a nearly impossible task (since Cu II centers are generally readily reduced by thiolates), authentic Cu II and Cu III complexes with aliphatic thiolates in the metal coordination sphere have been synthesized. The unusual pair of squareplanar complexes (NEt 4 ) 2 [Cu(phmi)] · H 2 O and (PPh 4 )[Cu(phmi)] (the anion is depicted on the right) displays the lowest known redox potential ever recorded for a Cu III /Cu II redox couple and has been completely characterized. H 4 phmi = N , N ′‐1,2‐phenylenebis(2‐mercapto‐2‐methylpropionamide).