Polynuclear Cu(I) and Ag(I) phosphine complexes containing multi-dentate polytopic ligands : syntheses, crystal structures and photoluminescence properties

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

7 Scopus Citations
View graph of relations

Author(s)

  • Jing Xiang
  • Shun-Cheung Cheng
  • Xin-Xin Jin
  • Qian-Qian Su
  • Xin Zhou
  • Wing-Kin Chu
  • Chi-Fai Leung

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)741-750
Journal / PublicationDalton Transactions
Volume48
Issue number2
Online published3 Dec 2018
Publication statusPublished - 14 Jan 2019

Abstract

A series of polynuclear metal complexes, [Cu2(L1)(PPh3)4](ClO4)2 (1), [Cu3(L2)(PPh3)6](ClO4) (2), [Cu3(L3)(PPh3)6] (3), [Ag2(L1)(PPh3)4](BF4)2 (4), [Ag4(L2)2(PPh3)6] (5) and [Ag3(L3)(PPh3)5] (6), have been obtained from the reactions of the highly conjugated bridging ligands 2,3-bis(2-pyridyl)pyrazine (L1), 2,3-bis(2-tetrazoyl)pyrazine (H2L2) and 2,3-bis(2-tetrazoyl)imidazole (H3L3) with [Cu(MeCN)4]ClO4 and AgBF4, respectively. Their crystal structures have been determined by X-ray crystallography and their photophysical properties have been investigated in detail. Complexes 1 and 3 show photoluminescence in CH2Cl2 solution, while all the complexes exhibit obvious luminescence in the solid state; detailed photophysical studies and density functional theory calculations of these complexes have revealed that their lowest energy absorptions and emissions are predominantly derived from either metal-to-ligand charge-transfer (MLCT) or intraligand (IL) excited states.

Citation Format(s)

Polynuclear Cu(I) and Ag(I) phosphine complexes containing multi-dentate polytopic ligands : syntheses, crystal structures and photoluminescence properties. / Xiang, Jing; Cheng, Shun-Cheung; Jin, Xin-Xin; Su, Qian-Qian; Zhou, Xin; Chu, Wing-Kin; Leung, Chi-Fai; Ko, Chi-Chiu.

In: Dalton Transactions, Vol. 48, No. 2, 14.01.2019, p. 741-750.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review