Synthesis of Heavy Cyclodipnictadiphosphanes [ClE(μ-P-Ter)]2 [E = P, As, Sb, or Bi; Ter = 2,6-bis(2,4,6-trimethylphenyl)phenyl].

摘要: A complete series of terphenyl-substituted 1,3-dichloro-1,3-dipnicta-2,4-diphosphanes {[ClE(μ-P-Ter)]2, where E = P, As, Sb, or Bi and Ter 2,6-bis(2,4,6-trimethylphenyl)phenyl} was prepared fully characterized. While the heavy derivatives with Sb can be accessed via conversion silylated phosphanes amino-dichloropnictanes subsequent elimination TerNH2, lighter congeners could only by a metathesis reaction [ClBi(μ-P-Ter)]2 PCl3 AsCl3. Spectroscopic structural data indicate existence cis trans isomers [ClP(μ-P-Ter)]2 in contrast to all heavier derivatives, for which isomer obtained.