Controlled synthesis of mono-substituted diphosphine iron thiocarboxylate complexes CpFe(CO)(Ph 2P(CH 2) nPPh 2)SCOR [ n=1 (dppm), n=2 (dppe)]. X-ray crystal structure of CpFe(CO)(dppm-S)SCO-3,5-(NO 2) 2C 6H 3

Abstract

Controlled photolytic CO-substitution reaction of the organoiron thiocarboxylate complexes CpFe(CO) 2SCOR (R=CH 3, 2-NO 2C 6H 4, 4-NO 2C 6H 4, 3,5-(NO 2) 2C 6H 3) with diphosphines (Ph 2P(CH 2) n PPh 2) [ n=1 (dppm), n=2 (dppe)] at 0 °C using 1:1 (metal:ligand) molar ratio afforded exclusively the monosubstituted complexes CpFe(CO)(Ph 2P(CH 2) n PPh 2)SCOR. The complex CpFe(CO)(Ph 2PCH 2P=S(Ph) 2)SCO-3,5-(NO 2) 2C 6H 3 has been prepared and its X-ray structure was determined.