作　　者： ; ; ; ; ; ;

机构地区： 东莞理工学院化学与环境工程学院化学生物工程系

出　　处： 《高等学校化学学报》 2008年第10期1930-1936,共7页

摘　　要： 设计合成了10个氯化meso-四（对烷氧基苯基）卟啉合铁（Ⅲ）配合物,其中7个尚未见文献报道.用^1HNMR,MS,IR,UV和元素分析等技术表征了该系列配合物的结构.用差示扫描量热法和偏光显微镜研究结果表明8个配合物具有液晶性,其液晶行为分别表现为升温单变液晶和升温降温互变液晶;有1～2个中介相,相变区间Δt最宽为128℃,Δt最窄为42℃,液晶起始相变温度最高为80℃,最低为42℃;清亮点tc最高为181℃,最低为110℃;考察了烷氧基链长、配位金属离子及配合物分子空间结构对液晶性能的影响.通过荧光光谱分析进一步验证了氯化卟啉合铁（Ⅲ）可以转化为μ-氧-双卟啉合铁（Ⅲ）. A series of iron（Ⅲ） meso-tetrakis（4-alkoxyphenyl）porphyrin chloride were synthesized, seven of which were new compounds. Molecular structures of all synthesized compounds were confirmed by IR, UV, ^1H NMR, MS spectra and elemental analysis. Differential scanning calorimetry and polarizing microscope （PM） were used to probe the liquid crystal properties of the serial compounds. Eight compounds were found to exhibit liquid crystal （LC） properties, which behaved the single-change liquid crystals or the enantiotropic liquid crystals. Under PM, the LC texture was observed and filamentary optical one was displayed. The effects of alkoxy chains, metal ions of complexes and molecular space structure on liquid crystal properties were investigated. Verifying the （μ-oxy） bis [ meso-tetrakis （ 4-alkoxyphenyl ） porphyrin iron （ Ⅲ ） ] and iron （ Ⅲ ） meso-tetrakis（4-alkoxyphenyl） porphyrin chloride could convert mutually in the adverse reaction by fluorescence spectrum.

关 键 词： 卟啉铁配合物 液晶性 荧光光谱

领　　域： [理学] [理学]