八丁氧基取代酞菁配合物的晶体结构及其性质研究

【作者】 蔡金万；

【导师】 王俊东；

【作者基本信息】 福州大学 ， 物理化学， 2002， 硕士

【摘要】 测定了α位八丁氧基取代无金属酞菁、α位八丁氧基取代酞菁铜和α位八丁氧基取代酞菁镍的晶体结构。酞菁环骨架均有较大的马鞍状变形，晶体中相邻分子间重叠的面积和角度的大小交替变化，且三种化合物之间又各有差异。溶液的紫外可见吸收光谱和固体漫反射谱中Q带特征峰最大值的变化以及化合物的熔点与晶体中分子间的堆积方式相关。核磁共振结果显示酞菁环上质子峰的强度和峰型与中心金属的磁性有关。热重分析得到较复杂的热分解过程。差示扫描量热分析结果表明可能存在多种晶型或液晶相。更多还原

【Abstract】 The crystal structures of 1,4,8,11,15,18,22,25-octa-butyloxyphthalocyanines (metal-free phthalocyanine and its copper (II) , nickel (II) complexes ) were investigated by the X-ray diffraction method. The central cores of the molecules deviate markedly from planarity forming saddle shape in all these three compounds. The molecules are separated each other with different distances and cover each other with different area, alternate within closest molecular pair and between molecular pairs. The packing patterns of molecules in these compounds are also different. The blue shift of absorption bands in solid-state reflectance spectra from that in UV-Vis spectra in solution and melting points of these compounds are related to molecular arrangement in solid. The ’HNMR results show that the peak intensity and shape is affected by the kind of central metal. The TG measurements demonstrated complicated decomposition situations. DSC analysis indicated that there are some crystal transitions including the occurrence of liquid crystal state.更多还原