100312-18-3Relevant academic research and scientific papers
New synthetic strategies for organometallic complexes with thiolate ligands
Treichel, Paul M.,Nakagaki, Paul C.
, p. 711 - 716 (1986)
Reactions between several carbonylmetalate anions (PPN[Mn(CO)5] and PPN[M(CO)3(η-C5H5)]; PPN+ = Ph3PNPPh3+; M = Mo, W) and organic disulfides (RSSR; R = Ph, Me, CF3) initially give the metal thiolate complexes Mn(SR)(CO)5 and M(SR)(CO)3(η-C5H5). The tungsten species are stable and isolable. The molybdenum and manganese compounds are not stable; the former rapidly lose CO and form thiolate bridge dimers (a known reaction) while the later is converted, within this reaction system, to a mixture of Mn2(μ-SR)2(CO)8 and PPN[Mn2(μ-SR)3(CO)6]. Reactions between these carbonylmetalate anions and [Me2SSMe]BF4 yield the same mononuclear metal thiolate complexes which, when appropriate, lose CO and dimerize. If an excess of this sulfonium reagent is present, a further reaction may also occur to produce unstable complexes with monodentate organic disulfide ligands ([Mn(CO)5(RSSR)]+ and [M(RSSR)-(CO)3(η-C5H5)]+). The reaction of PPN[W(CO)3(η-C5H5)] with [W(MeSSMe)(CO)3(η-C5H5)]BF4 gives W(SMe)(CO)3(η-C5H5). This reaction is much faster than the reaction of PPN[W(CO)3(η-C5H5)] with MeSSMe, indicating that coordination of the disulfide to the metal has substantially enhanced its reactivity toward nucleophilic attack.
