Synthesis, characterization and photophysical study of a series of neutral isocyano rhodium(I) complexes with pyridylindolide ligands

Document Type

Journal Article

Publication Date

2011

Keywords

Rhodium, Isocyanide, Pyridylindole, Aggregation, Thermochromism

DOI

10.1016/j.jorganchem.2011.06.032

Abstract

Pyridylindole ligand and its chloro substituted derivatives have been synthesized and incorporated into the square planar bis(phenylisocyano) rhodium(I) complexes to give a series of neutral rhodium(I) complexes with general formula of [Rh( X-pyind)(CNR) 2] (R = 2,6-(CH 3) 2-4-BrC 6H 2, 2,4-Cl 2-6-(CH 3O)C 6H 2, 2,4,6-Br 3C 6H 2, 2,4,6-Cl 3C 6H 2 ; L = 2-(2′-pyridyl)indole, 5-chloro-2-(2′-pyridyl)indole, 4,6-dichloro-2-(2′-pyridyl)indole). The structures of two complex precursors [Rh(cod)( Cl-pyind)] and [Rh(cod)( Cl 2pyind )], and the target complex [Rh( pyind)(CNC 6H 2-2,4-Cl 2-6-(OCH 3)) 2] were determined by X-ray crystallography. The UV–vis absorption properties of these complexes and their responses towards the change of temperature were also investigated. A new class of neutral square planar bis(phenylisocyano) rhodium(I) complexes with pyridylindolide ligands with general formula of [Rh( X-pyind)(CNR) 2] has been synthesized. The UV–vis absorption and thermochromic properties of these complexes were also investigated.

Source Publication

Journal of Organometallic Chemistry

Volume Number

696

Issue Number

20

First Page

3223

Last Page

3230

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