TY - JOUR
T1 - Synthesis and magneto-optical properties of a series of bis(β-diketonato) Co(II) complexes with imino nitroxide radical chelate
AU - Ishida, Terukazu
AU - Adachi, Keiichi
AU - Kawata, Satoshi
AU - Suzuki, Takayoshi
AU - Fuyuhiro, Akira
AU - Kaizaki, Sumio
N1 - Funding Information:
We gratefully acknowledge support of this research by a Grant-in-Aid for Scientific Research (A) (No. 10304056) from the Ministry of Education, Sports, Culture, Science and Technology, Japan.
PY - 2007/6/15
Y1 - 2007/6/15
N2 - 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.
AB - 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.
KW - Co(II) complexes
KW - Imino nitroxide radical complexes
KW - Magnetic interaction
KW - Magnetic orbital
KW - UV-Vis spectra
UR - http://www.scopus.com/inward/record.url?scp=34249717385&partnerID=8YFLogxK
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U2 - 10.1016/j.poly.2006.09.054
DO - 10.1016/j.poly.2006.09.054
M3 - Article
AN - SCOPUS:34249717385
VL - 26
SP - 2013
EP - 2020
JO - Polyhedron
JF - Polyhedron
SN - 0277-5387
IS - 9-11
ER -