Document Type

Article

Publication Date

11-1-2015

Abstract

A series of molybdenum complexes based on chiral C-2-symmetric picchxn-type ligands (N-4 ligands, defined as trans-N,N'-bis(heterocycl-2-ylmethyl)-1,2-diaminocyclohexanes) has been synthesized and characterized. Reported and novel picchxn-type ligands form (kappa(3)-N4)Mo(CO)(3), [(kappa(4)-N-4)Mo(NO)(CO)] PF6, and [(kappa(4)-N-4)Mo(NO)X]PF6 (X = Br, I) compounds. Multiple tridentate (kappa(3)) and tetradentate (kappa(4)) ligand configurations were observed, and the favored kappa(4) configuration was found to vary with N-4 heterocycle identity. Heterocycle variation allowed for directed modification of the molybdenum electronic characteristics, but none of the studied {(kappa(4)-N-4)Mo(NO)}(+) fragments was found to be a suitable pi-base for dearomatization chemistry. The crystal structures of eight molybdenum complexes with picchxn-type ligands were determined. (C) 2015 Elsevier B.V. All rights reserved.

Journal Title

INORGANICA CHIMICA ACTA

Volume

438

DOI

10.1016/j.ica.2015.09.005

Included in

Chemistry Commons

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