Cyanido-bridged FeII-NbIV spin-crossover complex with FeII-crosslinking ligands possessing disulfide bonds

被引：0
|
作者：
Kanno, Takefumi [1 ]
Nakabayashi, Koji [1 ]
Imoto, Kenta [1 ]
Tanaka, Yoshinori [1 ]
Ohkoshi, Shin-ichi [1 ]
机构：
[1] Univ Tokyo, Sch Sci, Dept Chem, 7-3-1 Hongo,Bunkyo Ku, Tokyo 1130033, Japan
来源：
INORGANICA CHIMICA ACTA | 2024年 / 559卷
关键词：
Spin crossover; Cyanido-bridged metal assembly; Coordination network; Slichter-Drickamer model; WIDE THERMAL HYSTERESIS; PRUSSIAN BLUE ANALOG; ELECTRON-TRANSFER; ROOM-TEMPERATURE; COORDINATION POLYMERS; LIGHT; TRANSITION; BEHAVIOR; 2D; LUMINESCENCE;
D O I：
10.1016/j.ica.2023.121769
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A cyanido-bridged Fe-II-Nb-IV spin-crossover complex, [Fe-II(dpds)(2)](2)[Nb-IV(CN)(8)]<middle dot>6H(2)O (dpds = 4,4 '-dipyridyldisulfide), is synthesized with a three-dimensional coordination network. The network has cyanido bridges to connect the Fe-II and Nb-IV sites and dpds as an additional ligand to crosslink the Fe-II sites. [Fe-II(dpds)(2)](2)[Nb-IV(CN)(8)]<middle dot>6H(2)O exhibits a gradual and incomplete spin crossover in which 22% of the high-spin Fe-II sites change to low-spin Fe-II sites as the temperature decreases. The calculation indicates that the spin transition occurs sparsely, rather than forming low spin site domains.
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页数：8
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