Slow magnetic relaxation in five-coordinate spin-crossover cobalt(II) complexes

被引：52
作者：
Cui, Hui-Hui [1 ]
Wang, Jing [1 ]
Chen, Xue-Tai [1 ]
Xue, Zi-Ling [2 ]
机构：
[1] Nanjing Univ, Sch Chem & Chem Engn, State Key Lab Coordinat Chem, Nanjing 210023, Jiangsu, Peoples R China
[2] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA
来源：
CHEMICAL COMMUNICATIONS | 2017年 / 53卷 / 67期
基金：
美国国家科学基金会;
关键词：
SINGLE-MOLECULE MAGNET; ION MAGNET; BEHAVIOR; IRON(II); STATE; 4-COORDINATE; ANISOTROPY; BLOCKING; SYSTEMS; FE(II);
D O I：
10.1039/c7cc04785a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
We present the first examples of the coexistence of field induced slow magnetic relaxation and spin-crossover observed in five-coordinate cobalt(II) complexes [Co(12-TMC)(CH3CN)](X)(2) (12-TMC = 1,4,7,10-tetramethyl-1,4,7,10-tetraazacyclododecane, X = BF4-, 1; PF6-, 2). The direct-current (dc) magnetic data show a gradual and incomplete spin-crossover at high temperature. 1 and 2 display frequency-and temperature-dependent alternating-current (ac) magnetic susceptibility under an applied dc field of 2500 Oe, which originates from the S = 1/2 spin state of Co(II) ions.
引用
收藏
页码：9304 / 9307
页数：4
相关论文
共 50 条
[31]   Slow magnetic relaxation in two octahedral cobalt(II) complexes with positive axial anisotropy [J].
Zhou, Jianjun ;
Song, Jinbo ;
Yuan, Aihua ;
Wang, Zhenxing ;
Chen, Lei ;
Ouyang, Zhong-Wen .
INORGANICA CHIMICA ACTA, 2018, 479 :113-119
[32]   Electronic Control of Spin-Crossover Properties in Four-Coordinate Bis(formazanate) Iron(II) Complexes [J].
Milocco, Francesca ;
de Vries, Folkert ;
Bartels, Imke M. A. ;
Havenith, Remco W. A. ;
Cirera, Jordi ;
Demeshko, Serhiy ;
Meyer, Franc ;
Otten, Edwin .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2020, 142 (47) :20170-20181
[33]   Synthesis and Gelation Ability of Spin-Crossover Iron(II) Alkyl Imidazole Complexes [J].
Wang Ya-Qin ;
Zhang Hai-Xia ;
Zhang Shu-Heng ;
He Wei ;
Ge Fang-Yuan ;
Chen Yu-Xin ;
Gu Zhi-Guo .
CHINESE JOURNAL OF INORGANIC CHEMISTRY, 2019, 35 (12) :2260-2268
[34]   Protonation-induced ligand distortion of spin-crossover complexes [J].
Zhang, Rui ;
Hong, Dan-Li ;
He, Xiao-Tong ;
Chen, Fang-Hui ;
Jiao, Jia ;
Zhao, Xiao-Qing ;
Li, Xin ;
Luo, Yang-Hui ;
Sun, Bai-Wang .
INORGANIC CHEMISTRY COMMUNICATIONS, 2019, 102 :40-44
[35]   Spin-crossover in cobalt(II) compounds containing terpyridine and its derivatives [J].
Hayami, Shinya ;
Komatsu, Yasuka ;
Shimizu, Tetsuya ;
Kamihata, Hidenobu ;
Lee, Young Noon .
COORDINATION CHEMISTRY REVIEWS, 2011, 255 (17-18) :1981-1990
[36]   Field-Induced Slow Magnetic Relaxation in Cobalt(II) Compounds with Pentagonal Bipyramid Geometry [J].
Huang, Xing-Cai ;
Zhou, Chun ;
Shao, Dong ;
Wang, Xin-Yi .
INORGANIC CHEMISTRY, 2014, 53 (24) :12671-12673
[37]   Organosulfonate-Modulated Spin-Crossover Behavior in Three Halogen-Functionalized Cobalt(II) Complexes [J].
Zhou, Yue ;
Wei, Xiao-Qin ;
Gu, Ying ;
Zhao, Qi-Qi ;
Shao, Dong .
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2023, 26 (03)
[38]   Multielectron transfer and field-induced slow magnetic relaxation in opto-electroactive spin crossover cobalt(ii) complexes: structure-function correlations [J].
Rabelo, Renato ;
Toma, Luminita ;
Julve, Miguel ;
Lloret, Francesc ;
Pasan, Jorge ;
Cangussu, Danielle ;
Ruiz-Garcia, Rafael ;
Cano, Joan .
INORGANIC CHEMISTRY FRONTIERS, 2024, 11 (18) :6028-6043
[39]   Slow Magnetic Relaxation in Uranium(III) and Neodymium(III) Cyclooctatetraenyl Complexes [J].
Le Roy, Jennifer J. ;
Gorelsky, Serge I. ;
Korobkov, Ilia ;
Murugesu, Muralee .
ORGANOMETALLICS, 2015, 34 (08) :1415-1418
[40]   Advances in polynuclear iron(II), iron(III) and cobalt(II) spin-crossover compounds [J].
Murray, Keith S. .
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2008, 20 (20) :3101-3121
12345