中文摘要：

通过水热法合成了一个间氟苯甲酸（FC6H5COO-）和2，2’-联吡啶（bipy）为混合配体的异金属四核簇[Dy2Ni2（bipy）：（FPhC00）10]，并通过单晶和粉末X-线衍射、元素分析、红外光谱、热失重、直流和交流磁化率实验对其结构和磁性能进行了表征与测定．该配合物结晶于三斜的P1空间群，0=1．18566（7）nm，b=1．38561（8）nm，c=1．52403（8）nm，α=106．0520（10）°，β=99．9360（10）°，γ=113．9690（10）°，V=2．0797（2）nm3，Z=2．磁}生能测试结果表明，配合物相邻自旋载体间存在着弱的反铁磁相互作用，并且具有场诱导的单分子磁体行为．通过阿累尼乌斯方程拟舍得到磁化强度翻转的有效能垒（△E／kB）为19．5K，指前因子（t0）为1．17×10-7s．

英文摘要：

A new m-fluorobenzoate （FCrHsCOO-）-based heterometallic teranuclear cluster with N, N-bidentate chelating coligand, [Dy2Ni2 （bipy）z （FC6H5PhCOO）m] （bipy = 2, 2＇-bipyridine ） was synthesized, and its structure and magnetism were characterized by single-crystal and powder X-ray diffraction, elemental analysis, FT-IR spectrum, TG stability and vari- abletemperature direct-/alternating current magnetic susceptibility. The complex crystallizes in the triclinic P1 space group with a= 1.18566（7）nm, b = 1.38561（8）nm, c = 1.52403（8）nm, α= 106.052 0（10）°,β = 99.9360（10）°, γ= 113.969 0（10）°, V = 2.079 7 （2） nm3, Z = 2. Adjacent spin carriers in the complex are weak antiferromagnetic, and the complex displays field-induced single-molecular magnet behavior. Fitting the dynamic magnetic data to the Arrhenius law gives energy barrier △E / ks = 19.5 K and pre-exponential factor τo = 1.17×10-7 s.