Synthesis, structural characterization and growth features of some (Ph)Se–Cd cluster compounds (Ph = phenyl)

Cd(SePh)2, CdBr2·4H2O/CdI2 and PCh3 (Ph = phenyl; PCh3 = tricyclohexylphosphine) react to give [(SePh)2Cd2Br2(PCh3)2] (1), [(SePh)2Cd2I2(PCh3)2] (2) and [(SePh)7Cd4Br(PCh3)]n (3).The new compounds are examples of Cd(II) clusters obtained starting from the cluster-forming reagents Cd(SePh)2 and CdX2 (X = Br, I) in the presence of variable amounts of PCh3. While 1 and 2 are single, tetranuclear clusters, compound 3 attains polymeric adamantanoid cages linked through selenium bridges.

Cd(SePh)2, CdBr2·4H2O/CdI2 and PCh3 (Ph = phenyl; PCh3 = tricyclohexylphosphine) react to give the tetranuclear clusters [(PhSe)2Cd2Br2(PCh3)2] and [(PhSe)2Cd2I2(PCh3)2], and the polymeric adamantanoid cages [(PhSe)7Cd4Br(PCh3)]n, linked through selenium bridges.Figure optionsDownload as PowerPoint slide