Abstract
The paper describes the crystal structures and magnetic properties of complexes of copper(II) hexafluoroacetate (Cu(hfac)2) with stable pyrazole-substituted iminonitroxyl radicals containing the pyrazole substitutuent in the second position of the 2-imidazoline cycle (L). A new group of [Cu(hfac)2]3(L)2 complexes is found, in which L performs a bidentate-bridge function due to the coordination of the imine N atoms of the pyrazole and imidazoline cycles. It is shown that in the solid complexes there are Cu2+-N=C-N-•O exchange routes with high-energy ferromagnetic interactions (∼60-100 cm-1).
| Original language | English |
|---|---|
| Pages (from-to) | 828-834 |
| Number of pages | 7 |
| Journal | Journal of Structural Chemistry |
| Volume | 43 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 1 Jan 2002 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Inorganic Chemistry
- Materials Chemistry
Cite this
Crystal structures and magnetic properties of Cu(II) complexes with pyrazole-substituted iminonitroxyl radicals : New trinuclear heterospin complexes. / Fokin, S. V.; Romanenko, G. V.; Shvedenkov, Yu G.; Ikorskii, V. N.; Vasilevskii, S. F.; Tret'yakov, E. V.; Ovcharenko, V. I.
In: Journal of Structural Chemistry, Vol. 43, No. 5, 01.01.2002, p. 828-834.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Crystal structures and magnetic properties of Cu(II) complexes with pyrazole-substituted iminonitroxyl radicals
T2 - New trinuclear heterospin complexes
AU - Fokin, S. V.
AU - Romanenko, G. V.
AU - Shvedenkov, Yu G.
AU - Ikorskii, V. N.
AU - Vasilevskii, S. F.
AU - Tret'yakov, E. V.
AU - Ovcharenko, V. I.
PY - 2002/1/1
Y1 - 2002/1/1
N2 - The paper describes the crystal structures and magnetic properties of complexes of copper(II) hexafluoroacetate (Cu(hfac)2) with stable pyrazole-substituted iminonitroxyl radicals containing the pyrazole substitutuent in the second position of the 2-imidazoline cycle (L). A new group of [Cu(hfac)2]3(L)2 complexes is found, in which L performs a bidentate-bridge function due to the coordination of the imine N atoms of the pyrazole and imidazoline cycles. It is shown that in the solid complexes there are Cu2+-N=C-N-•O exchange routes with high-energy ferromagnetic interactions (∼60-100 cm-1).
AB - The paper describes the crystal structures and magnetic properties of complexes of copper(II) hexafluoroacetate (Cu(hfac)2) with stable pyrazole-substituted iminonitroxyl radicals containing the pyrazole substitutuent in the second position of the 2-imidazoline cycle (L). A new group of [Cu(hfac)2]3(L)2 complexes is found, in which L performs a bidentate-bridge function due to the coordination of the imine N atoms of the pyrazole and imidazoline cycles. It is shown that in the solid complexes there are Cu2+-N=C-N-•O exchange routes with high-energy ferromagnetic interactions (∼60-100 cm-1).
UR - http://www.scopus.com/inward/record.url?scp=0036956547&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036956547&partnerID=8YFLogxK
U2 - 10.1023/A:1022833526039
DO - 10.1023/A:1022833526039
M3 - Article
AN - SCOPUS:0036956547
VL - 43
SP - 828
EP - 834
JO - Journal of Structural Chemistry
JF - Journal of Structural Chemistry
SN - 0022-4766
IS - 5
ER -