SPIN CROSSOVER IN IRON(II) COMPLEXES WITH TRIS(PYRAZOL-1-YL)METHANE AND [Ag(CN)2]- AND [Au(CN)2]- ANIONS

被引：1
|
作者：
Shakirova, O. G. [1 ,2 ]
Korotaev, E., V [1 ]
Petrov, S. A. [3 ]
Varnek, V. A. [1 ]
Lavrenova, L. G. [1 ]
机构：
[1] Russian Acad Sci, Nikolaev Inst Inorgan Chem, Siberian Branch, Novosibirsk, Russia
[2] Komsomolsk On Amur State Univ, Komsomolsk On Amur, Russia
[3] Russian Acad Sci, Inst Solid State Chem & Mechanochem, Siberian Branch, Novosibirsk, Russia
来源：
JOURNAL OF STRUCTURAL CHEMISTRY | 2022年 / 63卷 / 09期
基金：
俄罗斯科学基金会;
关键词：
synthesis; coordination compounds; iron(II); tris(pyrazol-1-yl)methane (HC(pz)(3)); dicyanoargentate; dicyanoaurate; TRANSITION MOLECULAR MATERIALS; COORDINATION-COMPOUNDS; BUILDING-BLOCKS; STATE; 2-STEP; 2D; POLYMERS; BEHAVIOR; LIGANDS; GOLD;
D O I：
10.1134/S0022476622090153
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
New coordination compounds of iron(II) with tris(pyrazol-1-yl)methane (HC(pz)(3)) containing dicyanoargentate and dicyanoaurate ions of the composition [Fe(HC(pz)(3))[Ag(CN)(2)](2)]center dot 2H(2)O (1 center dot 2H(2)O), [Fe(HC(pz)(3))[Au(CN)(2)](2)]center dot H2O (2 center dot H2O) are synthesized and studied. The compounds are analyzed by powder X-ray diffraction, electron (diffuse reflectance spectroscopy), infrared, Mossbauer spectroscopy, and static magnetic susceptibility. The data obtained enable the conclusion that in the complexes under study, the coordination polyhedron is formed by three nitrogen atoms of the tridentately-cyclically coordinated HC(pz)(3) ligand, two nitrogen atoms of the bidentate bridging [M(CN)(2)](-) anion, and the nitrogen (or carbon) atom of the monodentately coordinated anion. Coordination cores acting as premises for spin crossover (SCO) in them (FeN6 and FeCN5) are formed in both compounds. Crystal field splitting parameters are calculated for low- and high-spin forms of 1 center dot 2H(2)O and 2 center dot H2O complexes. Dependences mu(eff)(T) are studied in the range of 80-400 K for 1 and 2 complexes obtained by dehydration of 1 center dot 2H(2)O and 2 center dot H2O. (1)A(1) <-> T-5(2) SCO is found to occur in both complexes; in 1, a one-step transition is observed; in 2, the transition becomes two-step.
引用
收藏
页码：1538 / 1550
页数：13
相关论文
共 50 条
  • [11] Investigation of solutions of iron(II) complexes with tris(pyrazol-1-yl) methane, possessing the spin-crossover phenomenon
    Shakirova, Olga
    Kokovkin, Vasily
    Korotaev, Evgeny
    Mironov, Igor
    Lavrenova, Ludmila
    INORGANIC CHEMISTRY COMMUNICATIONS, 2022, 146
  • [12] Structure and spin crossover in an iron(II) compound with tris(pyrazol-1-yl)methane and the complex Eu(dipic)2(Hdipic)]2– anion
    O. G. Shakirova
    L. G. Lavrenova
    E. V. Korotaev
    N. V. Kuratieva
    F. A. Kolokolov
    A. B. Burdukov
    Journal of Structural Chemistry, 2016, 57 : 471 - 477
  • [13] Iron(II) closo-borate complexes with 1,2,4-triazole derivatives: Spin crossover in the iron(II) closo-borate complexes with tris(pyrazol-1-yl)methane
    Shakirova, O. G.
    Daletskii, V. A.
    Lavrenova, L. G.
    Trubina, S. V.
    Erenburg, S. B.
    Zhizhin, K. Yu
    Kuzhetsov, N. T.
    RUSSIAN JOURNAL OF INORGANIC CHEMISTRY, 2013, 58 (06) : 650 - 656
  • [14] Structure and spin crossover in an iron(II) compound with tris(pyrazol-1-yl)methane and the complex Eu(dipic)2(Hdipic)]2- anion
    Shakirova, O. G.
    Lavrenova, L. G.
    Korotaev, E. V.
    Kuratieva, N. V.
    Kolokolov, F. A.
    Burdukov, A. B.
    JOURNAL OF STRUCTURAL CHEMISTRY, 2016, 57 (03) : 471 - 477
  • [15] Iron(II) closo-borate complexes with 1,2,4-triazole derivatives: Spin crossover in the iron(II) closo-borate complexes with tris(pyrazol-1-yl)methane
    O. G. Shakirova
    V. A. Daletskii
    L. G. Lavrenova
    S. V. Trubina
    S. B. Erenburg
    K. Yu. Zhizhin
    N. T. Kuzhetsov
    Russian Journal of Inorganic Chemistry, 2013, 58 : 650 - 656
  • [16] Platinum(II) bipyridyl complexes with bis(pyrazol-1-yl)methane (Bpm) and tris(pyrazol-1-yl)methane (Tpm)
    Green, TW
    Bauer, JAK
    Connick, WB
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2005, 229 : U1074 - U1074
  • [17] High-temperature spin-crossover in coordination compounds of iron(II) with tris(pyrazol-1-yl)methane
    Shakirova, O. G.
    Lavrenova, L. G.
    Daletsky, V. A.
    Shusharina, E. A.
    Griaznova, T. P.
    Katsyuba, S. A.
    Syakaev, V. V.
    Skripacheva, V. V.
    Mustafina, A. R.
    Solovieva, S. E.
    INORGANICA CHIMICA ACTA, 2010, 363 (14) : 4059 - 4064
  • [18] Studies on Sulfate Iron(II) Complex With Tris(pyrazol-1-yl)methane Exhibiting Spin Crossover in Aqueous Solutions
    Kokovkin, Vasily V.
    Mironov, Igor, V
    Korotaev, Evgenii, V
    Shayapov, Vladimir R.
    Shakirova, Olga G.
    Lavrenova, Ludmila G.
    CHEMISTRYSELECT, 2019, 4 (32): : 9360 - 9366
  • [19] Spin Crossover and Thermochromism of Iron(II) Coordination Compounds with 1,2,4-Triazoles and Tris(pyrazol-1-yl)methanes
    Lavrenova, Ludmila G.
    Shakirova, Olga G.
    EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2013, (5-6) : 670 - 682
  • [20] High-temperature spin transition in the iron(II) trifluoromethylsulfonate, perrhenate, and tetraphenylborate complexes with tris(pyrazol-1-yl)methane
    O. G. Shakirova
    V. A. Daletsky
    L. G. Lavrenova
    N. V. Kuratieva
    E. A. Shusharina
    L. A. Sheludyakova
    S. F. Vasilevskii
    Russian Journal of Coordination Chemistry, 2011, 37 : 511 - 517
12345