Spin-crossover in the complex of iron(II) nitrate with tris(3,5-dimethylpyrazol-1-yl)methane

被引：11

作者：

Lavrenova, Ludmila G. ^{[1
,2
]}

Virovets, Alexander V. ^{[1
]}

Peresypkina, Eugenia V. ^{[1
]}

Strekalova, Anna D. ^{[1
]}

Piryazev, Dmitry A. ^{[1
]}

Daletsky, Vasiliy A. ^{[1
]}

Sheludyakova, Liliya A. ^{[1
]}

Vasilevsky, Sergey F. ^{[3
]}

机构：

[1] Nikolaev Inst Inorgan Chem SB RAS, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, Novosibirsk 630090, Russia

[3] Inst Chem Kinet & Combust, Novosibirsk 630090, Russia

来源：

INORGANICA CHIMICA ACTA | 2012年 / 382卷

关键词：

Spin-crossover; Iron(II); Magnetic properties; Tris(3)5-dimethylpyrazol-1-yl)methane; Crystal structure; Thermochromism; TRANSITION; (1)A(1)-REVERSIBLE-ARROW-T-5(2); PYRAZOLYL; PZ;

D O I：

10.1016/j.ica.2011.11.030

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Novel coordination compound [Fe(HC(3,5-Mepz)(3))(2)](NO3)(2) is obtained by a reaction of Fe(NO3)(2) with tris(3,5-dimethylpyrazol-1-yl)methane. The compound is characterized with magnetic susceptibility method, electronic (diffuse reflection) and IR spectroscopy and powder diffraction. According to temperature dependence mu(eff)(T) the compound possesses spin-crossover (1)A(1) double left right arrow T-5(2) with hysteresis (T-c up arrow = 231, T-c down arrow = 227 K) accompanied by thermochromism (pink double left right arrow colorless). A crystal structure of the compound was determined just before (T = 240 K, Fe-HS-N 2.14-2.18 angstrom) and after (T = 123 K, Fe-LS-N 1.97-1.99 angstrom) spin phase transition. (C) 2011 Elsevier B. V. All rights reserved.

引用

页码：1 / 5

页数：5

共 32 条

[1]

[Anonymous], APEX2 VERS 1 08 SAIN

[2]

[Anonymous], CRYSALIS RED ABSPACK

[3]

Blatov V.A., 2006, CRYST COMP NEWSLETTE, V7, P4

[4] Complexes Fe(HTrz)3B10H10 • H2O and Fe(NH2Trz)3B10H10 • H2O (HTrz=1,2,4-triazole and NH2Trz=4-amino-1,2,4-triazole).: The spin transition 1A1 ⇆ 5T2 in Fe(HTrz)3B10H10 • H2O [J].

Bushuev, M. B. ;

Lavrenova, L. G. ;

Shvedenkov, Yu. G. ;

Varnek, V. A. ;

Sheludyakova, L. A. ;

Volkov, V. V. ;

Larionov, S. V. .

RUSSIAN JOURNAL OF COORDINATION CHEMISTRY, 2008, 34 (03) :190-194

[5]

Gamez P., 2009, J CHEM SOC DA, V38, P7845

[6] Spin crossover -: An overall perspective [J].

Gütlich, P ;

Goodwin, HA .

SPIN CROSSOVER IN TRANSITION METAL COMPOUNDS I, 2004, 233 :1-47

[7] IMPROVED SYNTHESIS OF POLYAZOLYLMETHANES UNDER SOLID-LIQUID PHASE-TRANSFER CATALYSIS [J].

JULIA, S ;

DELMAZO, JM ;

AVILA, L ;

ELGUERO, J .

ORGANIC PREPARATIONS AND PROCEDURES INTERNATIONAL, 1984, 16 (5-6) :299-307

[8] Iron(II)-1,2,4-triazole spin transition molecular materials [J].

Kahn, O ;

Codjovi, E .

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1996, 354 (1706) :359-379

[9] SPIN TRANSITION MOLECULAR MATERIALS FOR DISPLAYS AND DATA RECORDING [J].

KAHN, O ;

KROBER, J ;

JAY, C .

ADVANCED MATERIALS, 1992, 4 (11) :718-728

[10] ENERGETIC AND CONSTITUTIONAL HYSTERESIS IN BISTABLE MOLECULES [J].

KOLLE, U .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1991, 30 (08) :956-958

← 1 2 3 4 →