ESR studies on distortion in the macrocyclic ring of copper(II) chlorophylls

Y. Nonomura, N. Yoshioka, H. Inoue

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The influence of distortion in the porphine ring on the electronic structure of the central metal ion was studied by means of the ESR spectra of copper(II) chlorophylls (CuChls). A linear correlation between ESR parameters, i.e. g and A values, indicated that the electronic structure of the central copper(II) ion in CuChls is different from that in compounds having the regular porphine skeleton. The weakened CuN bond in CuChls was evidenced by a decrease in the bonding coefficient α2. These observations on the ESR parameters of CuChls were explained by a partially saturated and distorted macrocyclic structure.

Original languageEnglish
Pages (from-to)181-184
Number of pages4
JournalInorganica Chimica Acta
Volume224
Issue number1-2
DOIs
Publication statusPublished - 1994 Oct

Keywords

  • Chlorophyll complexes
  • Copper complexes
  • ESR study

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Fingerprint Dive into the research topics of 'ESR studies on distortion in the macrocyclic ring of copper(II) chlorophylls'. Together they form a unique fingerprint.

  • Cite this