【摘要】 合成了 5 ,1 0 ,1 5 ,2 0 -四 -(对 -十二酰氧基 )苯基卟啉 (简称 TLPPH2 )及其 Mn( ) ,Fe( ) ,Co( ) ,Ni( ) ,Cu( )和 Zn( )配合物 ,通过元素分析、紫外可见光谱、红外光声光谱、核磁共振氢谱和摩尔电导等分析方法表征了它们的组成和结构 .用 DSC和偏光显微镜研究了配体及其锌配合物的液晶行为 .结果表明 ,锌配合物的液晶相变温度始于 -5 0 .6 7℃ ,相区宽度达 1 4 3℃ .更多还原

【Abstract】 Tetra-(4-n-lauryloxyphenyl)porphyrin and its complexes of Mn(Ⅲ), Fe(Ⅲ), Co(Ⅱ), Ni(Ⅱ), Cu(Ⅱ) and Zn(Ⅱ) have been synthesized. The compounds were determined and measured by elemental analysis, UV-Vis, FTIR photoacoustic spectrum, 1H NMR and molar conductivity. The Fourier transform infrared photoacoustic of TLPPH 2 and its complexes in the range of 3 600-190 cm -1 were measured and investigated. The vibration coupling between the M-N stretching and the porphyrin ring deformation appears at 250.0 cm -1. The band at 320 cm -1 is due to M-Cl stretching vibration. Metal sensitive bands were found at ~1 352, ~1 018, ~993, ~800 and 231 cm -1. The stability and the structure of the liquid crystalline phases are examined by optical microscopy and differential scanning calorimetry(DSC). Zn complex exhibits lower phase transition temperature at -50.67 ℃ and wide mesophase range at 143 ℃.更多还原