Synthesis, photophysical and electrochemical study of diisocyano-bridged homodinuclear rhenium(I) diimine complexes

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

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Original languageEnglish
Pages (from-to)17-23
Journal / PublicationPolyhedron
Online published13 Apr 2014
Publication statusPublished - 28 Jan 2015


A new series of diisocyanide-bridged homodinuclear Re(I) complexes [(phen)(Lx)(CO)2Re(CNRNC)Re(CO)2(Lx)(phen)]2+ and their mononuclear analogues [Re(PPh3)(CNRNC)(CO)2(phen)]+ [Lx = CO and PPh3; CNRNC = 1,4-phenylenediisocyanide (CNC6H4NC) and 4,4′-biphenyldiisocyanide (CNC6H4C6H4NC)] have been synthesized. The X-ray crystal structures of two of the dinuclear complexes were determined. The photophysics and electrochemistry of these complexes have been investigated. The dicarbonyl phosphino Re(I) phenanthroline complexes display intense MLCT [dπ(Re)→π(phen)] phosphorescence in CH2Cl2 solution with luminescence quantum yield (φem) in the range of 0.127-0.171. In contrast, the tricarbonyl dinuclear Re(I) complexes exhibit LC [π→π(phen)] phosphorescence with φem from 0.0498 to 0.0625.

Research Area(s)

  • Diisocyanide, Homodinuclear, Luminescence, MLCT, Rhenium