Inter-ligand azo (N=N) unit formation and stabilization of a Co(II)-diradical complex via metal-to-ligand dπ-pπ* back donation: synthesis, characterization, and theoretical study

Richa Rakshit; Samir Ghorai; Amrit Sarmah; Archana Tiwari; Ram Kinkar Roy; Chandan Mukherjee

doi:10.1039/c4dt03214d

Inter-ligand azo (N=N) unit formation and stabilization of a Co(II)-diradical complex via metal-to-ligand dπ-pπ* back donation: synthesis, characterization, and theoretical study

Dalton Trans. 2015 Feb 28;44(8):3724-7. doi: 10.1039/c4dt03214d.

Authors

Richa Rakshit¹, Samir Ghorai, Amrit Sarmah, Archana Tiwari, Ram Kinkar Roy, Chandan Mukherjee

Affiliation

¹ Department of Chemistry, Indian Institute of Technology, Guwahati, 781039, Assam, India. cmukherjee@iitg.ernet.in.

PMID: 25623286
DOI: 10.1039/c4dt03214d

Abstract

An azide (-N3) group attached at the -ortho carbon atom to the aniline moiety of 2-anilino-4,6-di-tert-butylphenol formed a diradical-containing Co(II) complex via inter-ligand azo (N=N) bond formation. Metal-to-ligand (azo), dπ-to-pπ* back donation stabilized the metal in its lower oxidation state.