Complexes of long-chain bidentate ligands: cobalt(II), nickel(II), rhodium(I) and iridium(I) with α, ω-bis(diphenylphosphino)alkanes, and palladium(II) and platinum(II) with 1, 10-bis(ethlthio)decane
作者:R.V. Parish、S.M. Razzoki
DOI:10.1016/s0020-1693(00)93736-8
日期:1985.1
= CO) which are also dimeric; low-temperature 31 P NMR studies show the presence of two conformers. The corresponding complexes with L = PPh 3 appear to lose the monodentate phosphine in solution but probably remain dimeric; they may contain three-coordinate rhodium(I). In contrast, the complexes [MX 2 (EtS(CH 2 ) 10 SEt)] (M = Pd or Pt) are monomeric, with the chelating ligand occupying trans positions
摘要配体Ph 2 P(CH 2)n PPh 2(n = 8、10或16)与钴(II),镍(II),铑(I)和铱(I)以及EtS( CH 2)10 SEt与钯(II)和铂(II)的特征已被表征。钴(II)配合物为四面体,镍(II)配合物为平面,两组均为二聚体[MX 2(LL)] 2,具有形成2n + 6)成员环的桥联配体。铑(I)和铱(I)形成羰基络合物[MX(L)(LL)] 2(L = CO),它们也是二聚体。低温31 P NMR研究表明存在两个构象体。L = PPh 3的相应配合物似乎失去了溶液中的单齿膦,但可能仍保持二聚体状态。它们可能包含三配位铑(I)。相反,络合物[MX 2(EtS(CH 2)10 SEt)](M = Pd或Pt)是单体,