Spin State of the Cobalt(II) Complex with N,N'-Disubstituted 2,6-Bis(pyrazol-3-yl)pyridine

被引：0

作者：

Khakina, E. A. ^{[1
]}

Denisov, G. L. ^{[1
]}

Nikovskii, I. A. ^{[1
]}

Polezhaev, A., V ^{[1
,2
]}

Nelyubina, Yu, V ^{[1
,2
]}

机构：

[1] Russian Acad Sci, Nesmeyanov Inst Organoelement Cpds, Moscow, Russia

[2] Bauman Moscow State Tech Univ, Moscow, Russia

来源：

RUSSIAN JOURNAL OF COORDINATION CHEMISTRY | 2022年 / 48卷 / 06期

基金：

俄罗斯科学基金会;

关键词：

bis(pyrazol-3-yl)pyridine; Evans method; cobalt(II) complex; X-ray diffraction; spin state; NMR spectroscopy; CROSSOVER; IRON(II); LIGANDS;

D O I：

10.1134/S1070328422060021

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The reaction of a new N,N'-disubstituted 2,6-bis(pyrazol-3-yl)pyridine ligand (L) with Co(ClO4)(2)center dot 6H(2)O gave cobalt(II) complex [Co(L)(2)](ClO4)(2) (I), which was characterized by elemental analysis, mass spectrometry, NMR spectroscopy, and X-ray diffraction (CIF file CCDC no. 2121030). According to the Evans methods, NMR spectroscopy, and analysis of the temperature dependence of the NMR spectra, which are used to identify the spin state of paramagnetic compounds in solution, the cobalt(II) ion in complex I occurs in the high-spin state and does not undergo temperature-induced spin transition in the 235-345 K range.

引用

页码：344 / 352

页数：9

共 28 条

[1] Relationships between temperature, magnetic moment, and continuous symmetry measures in spin crossover complexes [J].

Alvarez, S .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (22) :6795-6802

[2] Distortion Pathways of Transition Metal Coordination Polyhedra Induced by Chelating Topology [J].

Alvarez, Santiago .

CHEMICAL REVIEWS, 2015, 115 (24) :13447-13483

[3] Diamagnetic corrections and Pascal's constants [J].

Bain, Gordon A. ;

Berry, John F. .

JOURNAL OF CHEMICAL EDUCATION, 2008, 85 (04) :532-536

[4] The Halogen Bond [J].

Cavallo, Gabriella ;

Metrangolo, Pierangelo ;

Milani, Roberto ;

Pilati, Tullio ;

Priimagi, Arri ;

Resnati, Giuseppe ;

Terraneo, Giancarlo .

CHEMICAL REVIEWS, 2016, 116 (04) :2478-2601

[5] Spin state behavior of iron(II)/dipyrazolylpyridine complexes. New insights from crystallographic and solution measurements [J].

Cook, Laurence J. Kershaw ;

Mohammed, Rufeida ;

Sherborne, Grant ;

Roberts, Thomas D. ;

Alvarez, Santiago ;

Halcrow, Malcolm A. .

COORDINATION CHEMISTRY REVIEWS, 2015, 289 :2-12

[6] A Unified Treatment of the Relationship Between Ligand Substituents and Spin State in a Family of Iron(II) Complexes [J].

Cook, Laurence J. Kershaw ;

Kulmaczewski, Rafal ;

Mohammed, Rufeida ;

Dudley, Stephen ;

Barrett, Simon A. ;

Little, Marc A. ;

Deeth, Robert J. ;

Halcrow, Malcolm A. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2016, 55 (13) :4327-4331

[7] Local Coordination Geometry and Spin State in Novel FeII Complexes with 2,6-Bis(pyrazol-3-yl)pyridine-Type Ligands as Controlled by Packing Forces: Structural Correlations [J].

Craig, Gavin A. ;

Sanchez Costa, Jose ;

Roubeau, Olivier ;

Teat, Simon J. ;

Aromi, Guillem .

CHEMISTRY-A EUROPEAN JOURNAL, 2012, 18 (37) :11703-11715

[8] OLEX2: a complete structure solution, refinement and analysis program [J].

Dolomanov, Oleg V. ;

Bourhis, Luc J. ;

Gildea, Richard J. ;

Howard, Judith A. K. ;

Puschmann, Horst .

JOURNAL OF APPLIED CRYSTALLOGRAPHY, 2009, 42 :339-341

[9] THE DETERMINATION OF THE PARAMAGNETIC SUSCEPTIBILITY OF SUBSTANCES IN SOLUTION BY NUCLEAR MAGNETIC RESONANCE [J].

EVANS, DF .

JOURNAL OF THE CHEMICAL SOCIETY, 1959, (JUN) :2003-2005

[10] Molecular magnetism, quo vadis? A historical perspective from a coordination chemist viewpoint [J].

Ferrando-Soria, Jesus ;

Vallejo, Julia ;

Castellano, Maria ;

Martinez-Lillo, Jose ;

Pardo, Emilio ;

Cano, Joan ;

Castro, Isabel ;

Lloret, Francesc ;

Ruiz-Garcia, Rafael ;

Julve, Miguel .

COORDINATION CHEMISTRY REVIEWS, 2017, 339 :17-103

← 1 2 3 →