Interaction of 3,5-Dimethylpyrazole with Cobalt(II)
Carboxylates Containing Coordinated 1,10-Phenanthroline or
2,2'-Dipyridyl

M. A. Uvarova, E. V. Kushan, M. V. Andreev, A. O. Voroshilina, and S. E. Nefedov

Kurnakov Institute of General and Inorganic Chemistry, Russian academy of Sciences,
Leninskii pr. 31, Moscow, 119991 Russia

e-mail: snef@igic.ras.ru

Received January 21, 2012

Abstract—The reaction of Co3(-OOCBut)6(NEt3)2 with 1,10-phenanthroline or 2,2'-dipyridyl in benzene at
room temperature yields L2Co2(-OH2)(-OOCBut)4 complexes (L2 = Phen (1a) and Dipy (1b)). The reaction
of 1a (1b) with 3,5-dimethylpyrazole gives a mixture of L2Co(Hdmpz)2(OOCBut)2 complexes (2a,2b) and
L2Co(Hdmpz)(OOCBut)2 (3a, 3b), and their yield is determined by the ratio of the initial reagents. As distinct from
pivalates, for cobalt(II) phenanthroline-benzoate, only the (Phen)Co(Hdmpz)2(OOCPh)2 complex (4) has been iso-
lated. The structures of the synthesized compounds have been determined by X-ray crystallography.

DOI: 10.1134/S0036023612090215

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