Synthesis of chelate complexes and the dichalcogen derivatives of the unsymmetrical diphosphine ligand Ph2PNHC6H4PPh2. Molecular structure of [PtCl2(Ph2PNHC6H4PPh2)]·0.75dmso·0.75CHCl3
作者:Stephen M. Aucott、Alexandra M. Z. Slawin、J. Derek Woollins
DOI:10.1039/b101772l
日期:——
metallacycles. The cationic species [Pd(PPh3)(Ph2P(S)NC6H4P(S)Ph2-S,N,S)][ClO4] was generated by the sequential addition of first Ag[ClO4] followed by PPh3 to the neutral chloride. The molecular structure of [PtCl2(Ph2PNHC6H4PPh2)]·0.75dmso·0.75CHCl3, which reveals a puckered ring and displays hydrogen-bonding interactions between the ligand amine proton and the oxygen atom of the dmso molecule, has been determined
[M(η 3 -C 3 H ^ 5)(L)] [CL](M = Pt或Pd和L =苯基2 PNHC 6 ħ 4 PPH 2),[MX 2(L)](其中M = PT, X = Me,Cl,Br或I,其中M = Pd或Ni X = Cl),[PtMeCl(L)],[Mo(CO)4(L)]和[(AuCl)2(L)]为综合的。在除[(AuCl)2(Ph 2 PNHC 6 H 4 PPh 2)]以外的所有络合物中,二膦起桥联作用配体在两个金属中心之间观察到螯合配位模式。我们还制备并表征了二卤化合物Ph 2 P(E)NHC 6 H 4 P(E)Ph 2(其中E = O,S或Se),发现二硫化物与[PdCl 2(PhCN)2 ]在二氯甲烷或Na 2 [PdCl 4 ]在乙醇除去HCl即可得到不寻常的中性N-金属化物种[PdCl(Ph 2 P(S)NC 6 H 4 P(S)Ph 2 - S,N,S)],其中既包含S–P–C–