Accessibility navigation


Rhodium assisted C-H activation of N-(2 '-hydroxyphenyl)benzaldimines. Synthesis, structure and electrochemical properties of a group of organorhodium complexes

Basu, S., Dutta, S., Drew, M.G.B. and Bhattacharya, S. (2006) Rhodium assisted C-H activation of N-(2 '-hydroxyphenyl)benzaldimines. Synthesis, structure and electrochemical properties of a group of organorhodium complexes. Journal of Organometallic Chemistry, 691 (17). pp. 3581-3588. ISSN 0022-328X

Full text not archived in this repository.

It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing.

To link to this item DOI: 10.1016/j.jorganchem.2006.04.020

Abstract/Summary

Reaction of a group of N-(2'-hydroxyphenyl)benzaldimines, derived from 2-aminophenol and five para-substituted benzaldehydes (the para substituents are OCH3, CH3, H, Cl and NO2), with [Rh(PPh3)(3)Cl] in refluxing toluene in the presence of a base (NEW afforded a family of organometallic complexes of rhodium(III). The crystal structure of one complex has been determined by X-ray crystallography. In these complexes the benzaldimine ligands are coordinated to the metal center, via dissociation of the phenolic proton and the phenyl proton at the ortho position of the phenyl ring in the imine fragment, as dianionic tridentate C,N,O-donors, and the two PPh3 ligands are trans. The complexes are diamagnetic (low-spin d(6), S = 0) and show intense MLCT transitions in the visible region. Cyclic voltammetry shows a Rh(III)-Rh(IV) oxidation within 0.63-0.93 V vs SCE followed by an oxidation of the coordinated benzaldimine ligand. A reduction of the coordinated benzaldimine is also observed within -0.96 to -1.04 V vs SCE. Potential of the Rh(Ill)-Rh(IV) oxidation is found to be sensitive to the nature of the para-substituent. (c) 2006 Elsevier B.V. All rights reserved.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Chemistry
ID Code:10996
Uncontrolled Keywords:C-H activation, schiff bases, organorhodium complexes, structure, electrochemical properties , O HYDROGEN-BONDS, DOT-PI INTERACTIONS, CRYSTAL-STRUCTURE, REDOX PROPERTIES, METHYL-GROUP, MOLECULAR RECOGNITION, ORGANIC-SYNTHESIS, 2-(ARYLAZO)PHENOLS, RUTHENIUM, CHEMISTRY

University Staff: Request a correction | Centaur Editors: Update this record

Page navigation