Abstract
The procedures for the synthesis of the Cu(II) complexes with bis(pyrazole-1-yl)methane (L1), bis(3,5-dimethyl-4-bromopyrazole-1- yl)methane (L2), and bis(3,5-dimethyl-4-iodopyrazole-1-yl)methane (L3) of the composition Cu2(L1) 2Br4 (I), Cu2(L2)2Cl 4 (II), Cu(L3)(NO3)2 (III), and Cu(L3)(H2O)(NO3)2 • 2H 2O (IV) were developed. The organic ligands in the above complexes are coordinated to Cu(II) in a bidentate cyclic type through the N(2), N(2′) atoms of the pyrazole rings. The molecular and crystal structures of L2, L3, II, III, and IV were determined by X-ray diffraction. The study of the μeff(T) function in a temperature interval 2-300 K showed that compound I, which exhibited ferromagnetic exchange interactions in the chains, undergoes transition to antiferromagnetic state with weak ferromagnetism. The exchange antiferromagnetic interactions predominate in compound II.
| Original language | English |
|---|---|
| Pages (from-to) | 896-907 |
| Number of pages | 12 |
| Journal | Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya |
| Volume | 33 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 1 Dec 2007 |
| Externally published | Yes |
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- Chemistry(all)
- Chemical Engineering(all)
Cite this
The Cu(II) complexes with bis(pyrazole-1-yl)methane and its derivatives : Synthesis, crystal structure, and magnetic properties. / Lider, E. V.; Krivenko, O. L.; Peresypkina, E. V.; Smolentsev, A. I.; Shvedenkov, Yu G.; Vasilevskii, S. F.; Lavrenova, L. G.
In: Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya, Vol. 33, No. 12, 01.12.2007, p. 896-907.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The Cu(II) complexes with bis(pyrazole-1-yl)methane and its derivatives
T2 - Synthesis, crystal structure, and magnetic properties
AU - Lider, E. V.
AU - Krivenko, O. L.
AU - Peresypkina, E. V.
AU - Smolentsev, A. I.
AU - Shvedenkov, Yu G.
AU - Vasilevskii, S. F.
AU - Lavrenova, L. G.
PY - 2007/12/1
Y1 - 2007/12/1
N2 - The procedures for the synthesis of the Cu(II) complexes with bis(pyrazole-1-yl)methane (L1), bis(3,5-dimethyl-4-bromopyrazole-1- yl)methane (L2), and bis(3,5-dimethyl-4-iodopyrazole-1-yl)methane (L3) of the composition Cu2(L1) 2Br4 (I), Cu2(L2)2Cl 4 (II), Cu(L3)(NO3)2 (III), and Cu(L3)(H2O)(NO3)2 • 2H 2O (IV) were developed. The organic ligands in the above complexes are coordinated to Cu(II) in a bidentate cyclic type through the N(2), N(2′) atoms of the pyrazole rings. The molecular and crystal structures of L2, L3, II, III, and IV were determined by X-ray diffraction. The study of the μeff(T) function in a temperature interval 2-300 K showed that compound I, which exhibited ferromagnetic exchange interactions in the chains, undergoes transition to antiferromagnetic state with weak ferromagnetism. The exchange antiferromagnetic interactions predominate in compound II.
AB - The procedures for the synthesis of the Cu(II) complexes with bis(pyrazole-1-yl)methane (L1), bis(3,5-dimethyl-4-bromopyrazole-1- yl)methane (L2), and bis(3,5-dimethyl-4-iodopyrazole-1-yl)methane (L3) of the composition Cu2(L1) 2Br4 (I), Cu2(L2)2Cl 4 (II), Cu(L3)(NO3)2 (III), and Cu(L3)(H2O)(NO3)2 • 2H 2O (IV) were developed. The organic ligands in the above complexes are coordinated to Cu(II) in a bidentate cyclic type through the N(2), N(2′) atoms of the pyrazole rings. The molecular and crystal structures of L2, L3, II, III, and IV were determined by X-ray diffraction. The study of the μeff(T) function in a temperature interval 2-300 K showed that compound I, which exhibited ferromagnetic exchange interactions in the chains, undergoes transition to antiferromagnetic state with weak ferromagnetism. The exchange antiferromagnetic interactions predominate in compound II.
UR - http://www.scopus.com/inward/record.url?scp=37549065495&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=37549065495&partnerID=8YFLogxK
U2 - 10.1134/S1070328407120056
DO - 10.1134/S1070328407120056
M3 - Article
VL - 33
SP - 896
EP - 907
JO - Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya
JF - Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya
SN - 1070-3284
IS - 12
ER -