吡啶基双酰肼配合物的合成、结构和性能研究

Synthesis,Crystal Structure and Property Study of Complex of Dihydrazidate

以水杨酰肼和烟酸为原料,合成了一个不对称的含吡啶基的双酰肼配体L(L=异烟酰基水杨酰肼),并利用该配体与HgCl2反应,得到了一个不对称的含吡啶基的双酰肼的过渡金属配合物[Hg(L2)2Cl2].H2O.晶体结构的研究表明,该配合物属于正交晶系C2221空间群,是单核的手性分子,中心离子Hg(Ⅱ)处于四配位的四面体环境中,配合物分子通过氢键和π-π堆积作用形成手性的单晶.另外,还对该配合物进行了荧光光谱及旋光性的分析讨论.

In this paper,a unsymmetric dihydrazidate ligand（L） was synthesized through the reaction of salicyl-hydrazidate with isonicotinoyl chloride（L=isonicotinoyl salicylhydrazidate）.As used L to reacte with transition metal Hg（Ⅱ）,a unsymmetric dihydrazidate-metal complex had been synthesized,namely,[Hg（L2）2Cl2]·H2O.The complex was characterized by X-ray diffraction analyses.This compound is a chiral simple complex,it belongs to the tetragonal C2221 space group and the metal ions Hg（Ⅱ） adopt distorted tetrahedral geometries.It is extended into a 3D supermolecule framework through hydrogen bonding and π-π stacking.In addition,its fluorescence spectra and polarimetric analyses were discussed.