Substitution reactions of [MBr(π allyl)(CO)2(LL)] complexes (M = Mo, W; L-L = 2,2 -bipyridine 1,2-bis(diphenylphosphine)ethane) with xanthates and dithiocarbamates
作者:M.F. Perpiñan、A. Santos
DOI:10.1016/s0022-328x(00)81029-3
日期:1981.11
The complexes [MBr(π-allyl)(CO)2(bipy)] (M = Mo, W, bipy = 2,2′-bipyridine) react with alkylxanthates (MIRxant), and N-alkyldithiocarbamates (MIRHdtc) (MI = Na or K), yielding complexes of general formula [M(S,S)- (π-allyl)(CO)2(bipy)] (M = Mo, (S,S) = Rxant (R = Me, Et, t-Bu, Bz), RHdtc (R = Me, Et); M = W, (S,S) = Extant). A monodentate coordentate coordination of the (S,S) ligand was deduced from
的配合物[MBR(π烯丙基)(CO)2(联吡啶)](M =钼,钨,联吡啶= 2,2'-联吡啶)与alkylxanthates(M反应我RXANT),和Ñ -alkyldithiocarbamates(M我RHdtc )(M I = Na或K),得到通式为[M(S,S)-(π-烯丙基)(CO)2(bipy)]的络合物(M = Mo,(S,S)= Rxant(R = Me,Et,t-Bu,Bz),RHdtc(R = Me,Et); M = W,(S,S)= Extant)。从光谱数据推导出(S,S)配体的单齿配位配位。[MoBr(π-烯丙基)(CO)2(bipy)]与MeHdtc和Mexant的反应给出相同的络合物,无论是否存在吡啶。络合物[Mo(S,S)(π-烯丙基)(CO)2((Bipy)]((S,S)= MeHdtc,Mexant)不与过量的(S,S)配体和吡啶反应。