Thermodynamic properties of complex compounds of iron(II) nitrate with tris(3,5-dimethylpyrazol-1-yl)methane

Pleiades Publishing Ltd - 2013
G. A. Berezovskii1, V. A. Daletskii1, D. P. Pishchur1, A. D. Strekalova1, L. G. Lavrenova1
1Nikolaev Institute of Inorganic Chemistry, Russian Academy of Science, Siberian Branch, Novosibirsk, Russia

Tóm tắt

The temperature dependence of the heat capacity of a complex compound of iron(II) nitrate with tris(3,5-dimethylpyrazol-1-yl)methane is studied by adiabatic calorimetry in the range of 100–300 K. A specific heat anomaly is found and localized in the temperature range corresponding to the sharp spin transition 1 A 1 ↔ 5 T 2 with hysteresis on the temperature dependence of the magnetic susceptibility. The effects of cooperative interaction are revealed on the basis of thermodynamic and magnetochemical data, using two widely used models of spin transition.

Từ khóa


Tài liệu tham khảo

E. Konig, G. Ritter, and S. K. Kulshreshtha, Chem. Rev. 85, 219 (1985).

V. V. Zelentsov, Koord. Khim. 18, 787 (1992).

O. Kahn and E. Codjovi, Phil. Trans. R. Soc. London A 354, 359 (1996).

L. G. Lavrenova and S. V. Larionov, Russ. J. Coord. Chem. 24, 379 (1998).

P. Gutlich, Y. Garcia, and H. A. Coodwin, Chem. Soc. Rev. 29, 419 (2000).

S. V. Larionov, Russ. J. Coord. Chem. 34, 237 (2008).

M. Sorai and S. Seki, J. Phys. Chem. Solids 35, 555 (1974).

M. Sorai and S. Seki, J. Phys. Soc. Jpn. 33, 575 (1972).

V. I. Shipilov, V. V. Zelentsov, V. M. Zhdanov, and V. A. Turdakin, Pis’ma Zh. Eksp. Teor. Fiz. [JETP Lett. 19, 294 (1974).

G. A. Berezovskii and L. G. Lavrenova, J. Therm. Anal. Calorim. 103, 1063 (2011).

C. P. Slichter and H. G. Drickamer, J. Chem. Phys. 56, 2142 (1972).

M. Sorai and S. Seki, J. Phys. Chem. Solids 35, 555 (1974).

L. G. Lavrenova, A. V. Virovets, E. V. Peresypkina, et al., Inorg. Chim. Acta 382, 1 (2012).

G. A. Berezovskii, M. B. Bushuev, D. P. Pishchur, and L. G. Lavrenova, J. Therm. Anal. Calorim. 93, 999 (2008).

G. A. Berezovskii, D. P. Pishchur, O. G. Shakirova, and L. G. Lavrenova, Russ. J. Phys. Chem. A 83, 1827 (2009).

Thông tin
Thông tin xuất bản

Pleiades Publishing Ltd

Thông tin tác giả