Coordination polymers of transition metal diphosphonates: Synthesis, crystal structure and magnetic behaviour
作者:Wentao Huang、Hong Zhou
DOI:10.1016/j.poly.2018.08.030
日期:2018.11
2D inorganic layer structures, constructed by the coordination interactions between metal ions and phosphonate oxygen atoms. 4,4′-bipy molecules in 1 act as a bridging ligand to connect the adjacent 2D layers into a 3D framework. Moreover, magnetic properties of the complexes have been quantificationally investigated by the classical spin approximation and PHI software program, revealing that 2, 4 and
摘要五种新型过渡金属配位聚合物:[Cu2L(4,4'-bipy)(H2O)0.5](1),[Cu(H2L)H2O](2),[Cd2(H2L)2H2O](3),[通过水热反应获得了Co2L(H2O)2]·0.184H2O(4),[Fe3L2(OH)(H2O)3]·2H2O(5)(H4L = 4-CH3-C6H4CH2N(CH2PO3H2)2)。通过IR,元素分析,TGA和XRD对复合物进行了表征。晶体结构分析表明,所有2–5均包含2D无机层结构,该结构由金属离子与膦酸氧原子之间的配位相互作用构成。1中的4,4'-双联分子充当桥接配体,将相邻的2D层连接到3D框架中。此外,已通过经典自旋逼近和PHI软件程序对复合物的磁性进行了定量研究,结果表明2、4和5具有反铁磁性,