Molecular tectonics: structural and magnetic properties of a discrete copper binuclear complex and a 1-D coordination network
作者:Sylvie Ferlay、Abdelaziz Jouaiti、Marielle Loï、Mir Wais Hosseini、André De Cian、Philippe Turek
DOI:10.1039/b308944b
日期:——
Compound 3, in contrast, is an infinite coordination network formed upon mutual bridging of binuclear species through chloride atoms. Again, the geometry around each copper atom is closed to a square pyramid. The packing of the 1-D coordination networks generates channels which are occupied by BF4− anions. The magnetic behaviour observed for the 1-D network is comparable to the one corresponding to a discrete
两个新的铜配合物2 ([铜2(PYS 4)氯4 ]·2CHCl 3)和3 ([铜2(PYS 4)氯2 ] 2+ ·2BF 4 - )已经制备,它们的晶体结构阐明和它们的磁性能的研究。化合物2是离散的双核铜(II)配合物。金属中心周围的几何形状是变形的方形金字塔。相反,化合物3是在双核物质通过氯原子相互桥接时形成的无限配位网络。再次,每个周围的几何铜原子对一个方形金字塔是封闭的。1-d协调网络的包装生成由BF占用的信道4 -阴离子。对一维网络观察到的磁行为可与对应于一维离散磁网络的磁行为相媲美。氯代桥联铜(II)双核配合物。就磁耦合而言,虽然在二聚体中的两个自旋载体之间观察到强铁磁耦合(d = 3.467Å)(J / k B = 337 K),但测得的二聚体之间的反铁磁相互作用较弱(z J '/ k B = -1.6 K)。