School of Chemistry, University Road, National University of Ireland, Galway, Ireland.
Dalton Trans. 2010 May 28;39(20):4809-16. doi: 10.1039/b926704b.
We report the synthesis and magnetic characterisation of a series of planar [M₇] (M= Ni(II), Zn(II)) disc complexes Ni₇(OH)₆(L₁)₆₂ (1), Ni₇(OH)₆(L₁)₆₂·2MeOH (2), Ni₇(OH)₆(L₁)₆₂·3MeNO₂ (3), Ni₇(OH)₆(L₂)₆₂·2MeCN (4), Zn₇(OH)₆(L₁)₆₂·2MeOH·H₂O (5) and Zn₇(OH)₆(L₁)₆₂·3MeNO₂ (6) (where HL₁ = 2-iminomethyl-6-methoxy-phenol, HL₂ = 2-iminomethyl-4-bromo-6-methoxy-phenol). Each member exhibits a double-bowl pseudo metallocalix[6]arene topology whereby the individual [M₇] units form molecular host cavities which are able to accommodate various guest molecules (MeCN, MeNO₂ and MeOH). Magnetic susceptibility measurements carried out on complexes 1 and 4 indicate weak exchange between the Ni(II) centres.
我们报告了一系列平面[M₇]（M= Ni（II），Zn（II））盘状配合物[Ni₇（OH）₆（L₁）₆]（NO₃）₂（1），[Ni₇（OH）₆（L₁）₆]（NO₃）₂·2MeOH（2），[Ni₇（OH）₆（L₁）₆]（NO₃）₂·3MeNO₂（3），[Ni₇（OH）₆（L₁）₆]（NO₃）₂·2MeCN（4），[Zn₇（OH）₆（L₁）₆]（NO₃）₂·2MeOH·H₂O（5）和[Zn₇（OH）₆（L₁）₆]（NO₃）₂·3MeNO₂（6）（其中 HL₁= 2-亚氨基甲基-6-甲氧基苯酚，HL₂= 2-亚氨基甲基-4-溴-6-甲氧基苯酚）的合成和磁性表征。每个成员都表现出双碗伪金属杯[6]芳烃拓扑结构，其中单个[M₇]单元形成分子主体腔，能够容纳各种客体分子（MeCN、MeNO₂和 MeOH）。对配合物 1 和 4 进行的磁化率测量表明 Ni（II）中心之间存在微弱的交换。
