TY - JOUR
T1 - Cis-trans isomerism in Copper(II) complexes with N-acyl thiourea ligands
AU - Hernández, Wilfredo
AU - Spodine, Evgenia
AU - Vega, Andres
AU - Richter, Rainer
AU - Griebel, Jan
AU - Kirmse, Reinhard
AU - Schröder, Uwe
AU - Beyer, Lothar
PY - 2004/10/7
Y1 - 2004/10/7
N2 - The N-acyl thiourea complexes bis[N,N-diethyl-N′-(p-nitrobenzoyl)- thioureato]copper(II) (1a,1b) and bis(N,N-diphenyl-N′-benzoylthioureato) copper(II) (2a,2b) crystallize in each case in two modifications. X-ray structural analysis shows that 1a and 1b are cis-trans isomers. This is very unusual for N-acyl thioureato complexes because with exception of one platinum(II) complex up to now only cis complexes have been found. In contrast X-ray structural analysis of both forms 2a and 2b of the other complex shows no cis-trans pair. Both modifications are cis complexes. In solution both isomers of the copper(II) complexes are observable by EPR spectroscopy.
AB - The N-acyl thiourea complexes bis[N,N-diethyl-N′-(p-nitrobenzoyl)- thioureato]copper(II) (1a,1b) and bis(N,N-diphenyl-N′-benzoylthioureato) copper(II) (2a,2b) crystallize in each case in two modifications. X-ray structural analysis shows that 1a and 1b are cis-trans isomers. This is very unusual for N-acyl thioureato complexes because with exception of one platinum(II) complex up to now only cis complexes have been found. In contrast X-ray structural analysis of both forms 2a and 2b of the other complex shows no cis-trans pair. Both modifications are cis complexes. In solution both isomers of the copper(II) complexes are observable by EPR spectroscopy.
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U2 - 10.1002/zaac.200400030
DO - 10.1002/zaac.200400030
M3 - Article (Contribution to Journal)
SN - 0044-2313
SP - 1381
EP - 1386
JO - Zeitschrift fur Anorganische und Allgemeine Chemie
JF - Zeitschrift fur Anorganische und Allgemeine Chemie
ER -
