μ-氧-双[meso-四(对烷氧基苯基)卟啉合铁(Ⅲ)]的合成、表征和液晶性  

Synthesis,Characterization and Liquid Crystalline Properties of (μ-Oxo)bis[meso-tetrakis(4-alkoxyphenyl)porphyrin Iron(III)]

作　　者：赵鸿斌[1] 罗和安[1] 徐勇军[2] 周宁[1] 宋欣荣[1] 刘捷频[1] 曹华[1] 

机构地区：[1]湘潭大学化学化工学院,湘潭411105 [2]东莞理工学院化学生物工程系,东莞523808

出　　处：《化学学报》2006年第19期2020-2026,共7页Acta Chimica Sinica

基　　金：湖南省自然科学基金(Nos.04JJ40013;01JJY2046)资助项目.

摘　　要：设计合成了未见文献报道的μ-氧-双[meso-四(对烷氧基苯基)卟啉合铁(III)]配合物9个,研究了其合成、分离、纯化方法,用MS,1HNMR,IR,UV,元素分析等方法剖析确证了目标化合物的结构,其结构我们认为是μ-氧桥联的二聚体结构,且存在两种典型空间构象结构(重叠式和交叉式),表现为同一系列化合物存在四类1HNMR谱.用差示扫描量热仪和偏光显微镜研究了这9个化合物的液晶性,发现9个化合物均具有液晶性,多为升温降温互变液晶,具有丝状光学织构.有一至三个中介相,相变起始温度最低为-6℃,最高为210℃;相变区间最宽为301℃,最窄为50℃;清亮点(Tc)最高315℃,最低147℃.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.我们认为这种μ-氧桥联的二聚体结构比单层平面卟啉及其金属配合物具有更好的液晶性.A series of novel （μ-oxo）bis[meso-tetrakis（4-alkoxyphenyl）porphyrin iron （Ⅲ）] were synthesized. Molecular structures of all synthesized compounds were confirmed by IR, UV, ^1H NMR, MS and elemental analysis. Differential scanning calorimetry and polarizing microscope （PM） were used to probe the liquid crystal properties of the serial compounds. Nine compounds were found to exhibit liquid crystal （LC） properties. Most of them were 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 have been investigated.

关 键 词：卟啉铁配合物 合成 波谱解析 液晶性 

分 类 号：O627.81[理学—有机化学]