Synthesis and magneto-optical properties of a series of bis(β-diketonato) Co(II) complexes with imino nitroxide radical chelate

Terukazu Ishida, Keiichi Adachi, Satoshi Kawata, Takayoshi Suzuki, Akira Fuyuhiro, Sumio Kaizaki

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5 Citations (Scopus)

Abstract

A series of bis(4,4,4-trifluoro-1-R-1,3-butanedinato) Co(II) complexes with imino nitroxide radical(IM2py), [Co(Rtfc)2(IM2py)] (R = trifluoromethyl, phenyl, naphthyl, thienyl), was prepared and characterized by the X-ray analysis which demonstrated the stereospecific formation of the trans(CF3)-isomer with the trans disposition of the CF3 groups. The significant substituents effect on the UV-Vis spectra and magnetic properties were discussed in consideration of the inversion of the dπ(t2g) orbital levels leading to the orbital orthogonality or overlap with the SOMOπ* of IM2py in terms of the AOM parametrizations or spin-paring energy.

Original languageEnglish
Pages (from-to)2013-2020
Number of pages8
JournalPolyhedron
Volume26
Issue number9-11
DOIs
Publication statusPublished - Jun 15 2007
Externally publishedYes

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Keywords

  • Co(II) complexes
  • Imino nitroxide radical complexes
  • Magnetic interaction
  • Magnetic orbital
  • UV-Vis spectra

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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