School of Chemistry, National University of Ireland, Galway, University Road, Galway, Ireland.
Dalton Trans. 2013 Jul 28;42(28):10315-25. doi: 10.1039/c3dt51131f.
The synthesis, structural and magnetic characterisation of a family of homo- and heterometallic complexes constructed with the Schiff base ligands 2-iminomethyl-6-methoxy-phenol (L1H) and 2-imino-6-methoxy-phenol (L2H), are discussed. Members include the heterometallic tetranuclear complexes of general formula [Na2M2(X)2(L1)4(Y)2] (where M = Fe(III), X = (-)OMe, Y = NO3(-) (1) and M = Ni(II), X = N3(-) and Y = MeCN (2)), each possessing a butterfly-like topology. We also report the formation of the heterometallic molecular cage Na3Ni2(L1)6 (3) whose metallic skeleton describes a [rare] trigonal bipyramid, the homometallic 1-D coordination polymer [Mn(L1)2(Cl)]n (4), and the tetranuclear cubane clusters [Mn(III)3Mn(IV)(O)3(OEt)(OAc)3(L1)3] (5) and [Ni4(μ3-OMe)4(L2)4(MeOH)4] (6). Dc and ac magnetic susceptibility studies on complexes 5 and 6 reveal S = 9/2 and S = 4 spin ground states.
讨论了由希夫碱配体 2-亚氨基-6-甲氧基苯酚（L1H）和 2-亚氨基-6-甲氧基苯酚（L2H）构建的同多和杂多核配合物的合成、结构和磁性特征。成员包括具有蝴蝶状拓扑结构的通式[Na2M2（X）2（L1）4（Y）2]（其中 M = Fe（III），X = (-)OMe，Y = NO3-（1）和 M = Ni（II），X = N3-和 Y = MeCN（2））的杂多核四核配合物。我们还报告了异核分子笼[Na3Ni2（L1）6]（ClO4）（3）的形成，其金属骨架描述了一个[罕见]三角双锥，同核 1-D 配位聚合物[Mn（L1）2（Cl）]n（4），以及四核立方烷簇[Mn（III）3Mn（IV）（O）3（OEt）（OAc）3（L1）3]（5）和[Ni4（μ3-OMe）4（L2）4（MeOH）4]（6）。配合物 5 和 6 的 dc 和 ac 磁化率研究表明，S = 9/2 和 S = 4 自旋基态。
