title: Unexpected reactivities of Cu2(diphosphine)2 complexes in alcohol: isolation, x-ray crystal structure, and photoluminescent properties of a remarkably stable [Cu3(diphosphine)3(mu3-H)]2+ hydride complex.
abstract: Treatment of [Cu2(dcpm)2]Y2 (dcpm = bis(dicyclohexylphosphino)methane, Y = ClO4-, BF4-, PF6-, CF3SO3-) with refluxing MeOH in the presence of KOH afforded hydride complexes [Cu3(dcpm)3(mu3-H)]Y2 (1) in about 85% yield. Refluxing [Cu2(dcpm)2](PF6)2 with MeOH in the presence of NH3.H2O and air gave a carboxylate complex [Cu2(dcpm)2(O2CCH2OH)]PF6 (2) in 40% yield. All of the complexes 1 and 2 have been characterized by X-ray crystallography. The Cu3 cores in 1 are almost perfectly shielded by the dcpm ligands. Intense photoluminescence was observed for 1 both in the solid state and in solution.
authors.affiliation: Department of Chemistry and the HKU-CAS Joint Laboratory on New Materials, The University of Hong Kong, Pokfulam Road, Hong Kong.
authors.forename: Zhong
authors.initials: Z
authors.lastname: Mao
authors.forename: Jie-Sheng
authors.initials: JS
authors.lastname: Huang
authors.forename: Chi-Ming
authors.initials: CM
authors.lastname: Che
authors.forename: Nianyong
authors.initials: N
authors.lastname: Zhu
authors.forename: Sarana Ka-Yan
authors.initials: SK
authors.lastname: Leung
authors.forename: Zhong-Yuan
authors.initials: ZY
authors.lastname: Zhou