Self- Assembly of a Mixed- Valent Co32 Ring

被引:13
|
作者
Bai, Yue-Ling [1 ]
Bao, Xiaoli [1 ]
Zhu, Shourong [1 ]
Fang, Jianhui [1 ]
Shao, Min [1 ]
Shi, Haiyan [2 ]
机构
[1] Shanghai Univ, Dept Chem, Coll Sci, Shanghai 200444, Peoples R China
[2] Xiamen Univ, Coll Chem & Chem Engn, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China
基金
中国国家自然科学基金;
关键词
Cluster compounds; Cobalt; Mixed-valent compounds; Magnetic properties; Electrochemical properties; POROUS COORDINATION POLYMER; TRIPODAL FLEXIBLE LIGAND; SINGLE-MOLECULE MAGNETS; HIGH-SPIN MOLECULES; HIGH-NUCLEARITY; COBALT(II) CLUSTERS; CRYSTAL-STRUCTURES; GROUND-STATE; COMPLEX; FRAMEWORKS;
D O I
10.1002/ejic.201301530
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Solvothermal reaction of CoCl2 center dot 6H(2)O with H(3)tci [H(3)tci = tris(2-carboxyethyl)isocyanurate] in H2O/CH3COCH3 in the presence of triethylamine gave rise to a mixed-valent thirty-two nuclear cobalt cluster, namely, [(Co16Co16III)-Co-II(mu(4)-O)(16)(tci)(16)(H2O)(12)]center dot 40H(2)O (1). Crystal structural analysis showed that four octanuclear [(Co4Co4III)-Co-II(mu(4)-O)(4)](12+) units were bridged by the carbonyl oxygen atoms of the tci(3-) ligands to give a Co-32 ring. Magnetic studies confirmed the paramagnetic nature of this cluster, and cyclic voltammetry showed an irreversible oxidation at 1.0 V versus saturated calomel electrode.
引用
收藏
页码:1275 / 1278
页数:4
相关论文
共 27 条