Linkage Isomerism in Transition-Metal Complexes of Mixed (Arylcarboxamido)(arylimino)pyridine Ligands | Zendy

David W. Boyce | Zendy; Debra J. Salmon | Zendy; William B. Tolman | Zendy

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Linkage Isomerism in Transition-Metal Complexes of Mixed (Arylcarboxamido)(arylimino)pyridine Ligands

Author(s) -

David W. Boyce,

Debra J. Salmon,

William B. Tolman

Publication year - 2014

Publication title -

inorganic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.348

H-Index - 233

eISSN - 1520-510X

pISSN - 0020-1669

DOI - 10.1021/ic500638z

Subject(s) - chemistry , linkage isomerism , isomerization , pyridine , transition metal , coordination complex , electron paramagnetic resonance , carboxamide , stereochemistry , cyclic voltammetry , infrared spectroscopy , crystallography , divalent metal , medicinal chemistry , metal , catalysis , organic chemistry , electrochemistry , physics , electrode , nuclear magnetic resonance

The synthesis of a series of asymmetric mixed 2,6-disubstituted (arylcarboxamido)(arylimino)pyridine ligands and their coordination chemistry toward a series of divalent first-row transition metals (Cu, Co, and Zn) have been explored. Complexes featuring both anionic N,N',N″-carboxamido and neutral O,N,N'-carboxamide coordination have been prepared and characterized by X-ray crystallography, cyclic voltammetry, and UV-visible and EPR spectroscopy. Specifically, (R)LM(X) (M = Cu; X = Cl(-), OAc(-)) and (R)L(H)MX2 (M = Cu, Co, Zn; X = Cl(-), SbF6(-)) complexes that feature N,N',N″- or O,N,N'-coordination are presented. Base-induced linkage isomerization from O,N,N'-carboxamide to N,N',N″-carboxamido coordination is also confirmed by multiple forms of spectroscopy.

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