丙二胺铜配合物的合成、晶体结构和热稳定性

CuCl2与1,3-丙二胺（pn）在甲醇中反应获得了一个意想不到的络合物，其最大晶体尺寸约为7 mm×3 mm× 5 mm。通过红外光谱，元素分析和X射线衍射表征该配合物，结果表明，该复合体具有三维网络结构。三维网状结构是由于配位离子CuCl(pn)2]+与Cl-之间的氢键和静电相互作用而形成的，其中CH3OH也参与氢键相互作用。另外，使用热重分析和差示扫描量热技术研究了该络合物的热稳定性。结果表明，相互作用的热稳定序列（从强到弱）是静电作用，配位作用和氢键作用。协同相互作用有助于形成更大尺寸的配合物晶体。

Synthesis,Crystal Structure and Thermal Stability of Copper Complex of 1,3-Propane Diamine

An unexpected complex with the maximum crystal size of about 7 mm×3 mm× 5 mm was prepared by a reaction of CuCl2 with 1,3-propane diamine(pn) in methanol. The characterization results with infrared spectroscopy, elemental analysis and X-ray diffraction show that the complex exhibits three dimensional network structure, which is contributed to the hydrogen bonding and electrostatic interactions between coordination ion CuCl(pn)2]+ and its counter anion Cl-, where CH3OH also participates the hydrogen bonding interactions. In addition, thermogravimetric analysis and differential scanning calorimetry techniques show that the thermal stability of synergistic interactions increases in the order of electrostatic, coordination and hydrogen bond. The synergistic interactions are in favor of the formation of bigger size crystals of the complex.