Abstract
Iron(II) complexes with tris(3,5-dimethylpyrazol-1-yl)methane {HC(3,5-Me 2Pz) 3} of the composition [Fe{HC(3,5-Me 2Pz) 3} 2]A m • nH 2O (A = Cl - (I), ClO4 (II), SO 2- 4 (III), CF3SO3 (IV), m = 1, 2, n = 0.1) are synthesized. The compounds are studied by static magnetic susceptibility, IR and diffuse reflectance spectroscopy, and X-ray structure analysis. The crystal structures of two polymorphous modifications of the [Fe{HC(3,5-Me 2Pz) 3} 2](ClO 4) 2 (IIa and IIb) and [Fe{HC(3,5-Me 2Pz) 3} 2](CF 3SO 3) 2 (IV) complexes are determined. The temperature dependence (J. eff(T) shows that the spin crossover 1A1 5T 2 is observed in the polycrystalline phase of complex I and in one of the single-crystal phases of complex II (IIa) and is accompanied by thermochromism (the change of the dark pink color to white).
| Original language | English |
|---|---|
| Pages (from-to) | 507-514 |
| Number of pages | 8 |
| Journal | Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya |
| Volume | 38 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 1 Aug 2012 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Chemistry(all)
- Chemical Engineering(all)
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Spin crossover in the coordination compounds of iron(II) with tris(3,5-dimethylpyrazol-1-yl)methane. / Lavrenova, L. G.; Strekalova, A. D.; Virovets, A. V.; Piryazev, D. A.; Daletskii, V. A.; Sheludyakova, L. A.; Mikhailovskaya, T. F.; Vasilevskii, S. F.
In: Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya, Vol. 38, No. 8, 01.08.2012, p. 507-514.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Spin crossover in the coordination compounds of iron(II) with tris(3,5-dimethylpyrazol-1-yl)methane
AU - Lavrenova, L. G.
AU - Strekalova, A. D.
AU - Virovets, A. V.
AU - Piryazev, D. A.
AU - Daletskii, V. A.
AU - Sheludyakova, L. A.
AU - Mikhailovskaya, T. F.
AU - Vasilevskii, S. F.
PY - 2012/8/1
Y1 - 2012/8/1
N2 - Iron(II) complexes with tris(3,5-dimethylpyrazol-1-yl)methane {HC(3,5-Me 2Pz) 3} of the composition [Fe{HC(3,5-Me 2Pz) 3} 2]A m • nH 2O (A = Cl - (I), ClO4 (II), SO 2- 4 (III), CF3SO3 (IV), m = 1, 2, n = 0.1) are synthesized. The compounds are studied by static magnetic susceptibility, IR and diffuse reflectance spectroscopy, and X-ray structure analysis. The crystal structures of two polymorphous modifications of the [Fe{HC(3,5-Me 2Pz) 3} 2](ClO 4) 2 (IIa and IIb) and [Fe{HC(3,5-Me 2Pz) 3} 2](CF 3SO 3) 2 (IV) complexes are determined. The temperature dependence (J. eff(T) shows that the spin crossover 1A1 5T 2 is observed in the polycrystalline phase of complex I and in one of the single-crystal phases of complex II (IIa) and is accompanied by thermochromism (the change of the dark pink color to white).
AB - Iron(II) complexes with tris(3,5-dimethylpyrazol-1-yl)methane {HC(3,5-Me 2Pz) 3} of the composition [Fe{HC(3,5-Me 2Pz) 3} 2]A m • nH 2O (A = Cl - (I), ClO4 (II), SO 2- 4 (III), CF3SO3 (IV), m = 1, 2, n = 0.1) are synthesized. The compounds are studied by static magnetic susceptibility, IR and diffuse reflectance spectroscopy, and X-ray structure analysis. The crystal structures of two polymorphous modifications of the [Fe{HC(3,5-Me 2Pz) 3} 2](ClO 4) 2 (IIa and IIb) and [Fe{HC(3,5-Me 2Pz) 3} 2](CF 3SO 3) 2 (IV) complexes are determined. The temperature dependence (J. eff(T) shows that the spin crossover 1A1 5T 2 is observed in the polycrystalline phase of complex I and in one of the single-crystal phases of complex II (IIa) and is accompanied by thermochromism (the change of the dark pink color to white).
UR - http://www.scopus.com/inward/record.url?scp=84865375494&partnerID=8YFLogxK
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U2 - 10.1134/S1070328412070081
DO - 10.1134/S1070328412070081
M3 - Article
VL - 38
SP - 507
EP - 514
JO - Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya
JF - Russian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya
SN - 1070-3284
IS - 8
ER -