212701-98-9Relevant academic research and scientific papers
2(CS)>. THE FIRST STABLE THIOCARBONYL DERIVATIVE OF IRON(0) PENTACARBONYL
Conway, Paul,Manning, A. R.,Stephens, F. S.
, p. C64 - C66 (1980)
In some circumstances, P-nBu3 pr P-nBu3/CCl4 desulphurises 2(CS2)> to give 2(CS)> which has trigonal bipyramidal coordination about the iron atom with the phosphite ligands in axial positions.
Reaction of Fe(CO)2(η2-CS2){P(OR)3} 2 with phosphines: Desulphurization versus substitution. Crystal structures of Fe(CO)2(CS){P(OPh)3}2 and Fe(CO)3{P(OPh)3}2
Barrow,Cromhout,Cunningham,Manning,McArdle,Renze
, p. 201 - 207 (2007/10/03)
The reaction of Fe(CO)2(η2-CS2){P(OPh)3} 2 1 with two equivalents of PBu3 in a minimum volume of a polar solvent such as acetonitrile or dimethylsulfoxide afforded the thiocarbonyl derivative Fe(CO)2(CS){P(OPh)3}} 2 in ca. 80% yield whereas reaction in solvents such as dichloromethane or benzene afforded the substitution products Fe(CO)2(η2-CS2){P(OPh) 3}(PBu3) and Fe(CO)2(η2-CS2)(PBu3) 2. Although desulphurization of Fe(CO)2(η2-CS2){P(OR)3} 2 by PBu3 in polar solvents is not a general route to Fe(CO)2(CS){P(OR)3}2 for all R, the new compound Fe(CO)2(CS){P(OEt)3}2 has been obtained and characterised spectroscopically. The crystal structures of 2 and Fe(CO)3{P(OPh)3}2 were determined and are very similar. Both compounds are trigonal bipyramidal about the Fe atom with trans apical phosphite ligands and a trigonal planar arrangement of CO/CS groups. The CS ligand in 2 was found to be disordered over two sites with occupancies 0.63 and 0.37.
