中文摘要：

以对苯二甲酸根为桥联基团合成了一个新的镍（Ⅱ）四氮杂环羧酸桥联配合物[Ni（L）tp]∞（L=5-苯甲基-4,6-二甲基-1,3,7,10-四氮杂环十四烷）.X射线单晶衍射结果显示,Ni（Ⅱ）离子呈扭曲的八面体构型.每个对苯二甲酸阴离子tp^2-按照反式单齿桥联的模式连接两个Ni（Ⅱ）离子,每个Ni（Ⅱ）离子反式桥连两个tp^2-配体,tp^2-和Ni（Ⅱ）离子交替排列形成一维链状配位聚合物.磁性研究结果表明,配合物的χmT在低温时略有减小,根据结构分析将其归因于链内tp^2-传递的弱反铁磁耦合和八面体Ni（Ⅱ）的零场分裂.

英文摘要：

A new terephthalato-bridged nickel（ Ⅱ ） complex with a teraazamacrocyclic ligand, [ Ni（L） tp ]∞（ L = 5-benzyl-4,6-bimethyl-1,3,7,10-tetraaza-cyclotetradecane） was synthesized and characterized. On the basis of the X-ray crystallographic study, each Ni（ Ⅱ ） ion lies in a distorted octahedral environment, and the terephthalato ligand bridges two Ni（ Ⅱ ） ions in a trans fashion. The [ Ni（L） ]^2＋ and the tp^2- groups are alternatively arranged yielding a one-dimensional coordination polymer. Magnetic measurements show that the decrease Of χmT below 25 K gave a Weiss constant of θ = - 0.49 K. This behavior may be due to a very weak intrachain magnetic superexchange through the tp^2- bridge, a weak interchain exchange interaction and the zero-field splitting（ZFS） of octahedral Ni（ Ⅱ ） ions.