Abstract
Reactions of Ni(II) and Mn(II) hexafluoroacetylacetonates with pyrazole-containing nitronylnitroxyl radicals (L) result in dimeric heterospin complexes [M(hfac)2L]2 or [M(hfac)2L]2·C6H6. The paramagnetic ligands in the centrosymmetric binuclear molecules function as a bridge, with the nitroxyl O atom being bound to one metal and the imine N atom of the pyrazole ring to the other metal atom. The metal environment is a cis-octahedron with short M-ONO distances, which specifies a strong antiferromagnetic interaction between the lone electrons of paramagnetic centers in M-O•-N< exchange clusters.
Original language | English |
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Pages (from-to) | 360-367 |
Number of pages | 8 |
Journal | Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya |
Volume | 27 |
Issue number | 5 |
DOIs | |
Publication status | Published - 1 Dec 2001 |
Externally published | Yes |
ASJC Scopus subject areas
- Chemistry(all)
- Chemical Engineering(all)