Chemistry

Octahedral Cu(II) perchlorate complexes of n-methyl-2-pyridones

Document Type

Article

Abstract

Reaction of hexaaquacopper(II) perchlorate with n-methyl-2-hydroxypyridine generated a family of [(n-methyl-2-pyridone)xCu](ClO4)2 complexes: [(3-methyl-2-pyridone)6Cu](ClO4)2 (1), [(4-methyl-2-pyridone)6Cu](ClO4)2 (2), [(5-methyl-2-pyridone)6Cu](ClO4)2 (3), [(5-methyl-2-pyridone)4(H2O)2Cu](ClO4)2.2(5-methyl-2-pyridone) (4), and [(6-methyl-2-pyridone)4Cu(ClO4)2] (5). Variable temperature X-ray structural analysis reveals a mixture of elongation and compression Jahn-Teller or Jahn-Teller-like distortions. Compound 1 undergoes a temperature dependent phase transition from a Jahn-Teller elongated structure to a Jahn-Teller compressed structure. © 2026 Informa UK Limited, trading as Taylor & Francis Group.

Publication Title

Journal of Coordination Chemistry

Publication Date

2026

Volume

79

Issue

12

First Page

1546

Last Page

1566

ISSN

0095-8972

DOI

10.1080/00958972.2026.2695830

Keywords

Cu(II), Jahn-Teller, X-ray structures, κ-O-2-pyridone

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