烷氧桥相连的四苯基双金属卟啉配合物的红外光谱研究  

Studies on Infrared Spectra of Bistetraphenylmetalloporphyrin Dimers Linked by a Flexible Alkoxy Chain

作　　者：季生福[1] 寇元[1] 季伟捷[1] 李树本[1] 刘展良[1] 黄锦汪 计亮年 

机构地区：[1]中国科学院兰州化学物理研究所羰基合成与选择氧化国家重点实验室,中山大学化学系

出　　处：《高等学校化学学报》1996年第6期849-853,共5页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金

摘　　要：研究了烷氧桥相连的四苯基双卟啉及其Ｍｎ（Ⅲ）、Ｆｅ（Ⅲ）、Ｃｏ（Ⅱ）配合物的红外光谱（３６００～１５０ｃｍ－１），对一些主要吸收谱带进行了经验归属．金属敏感谱带出现在１５５８．２（以Ｈ２Ｐ－Ｈ２Ｐ为例）、１４７７．２、１４０１．９、１３５０．５、１００１．７、９６５．９、８７７．３和７９８．８ｃｍ－１附近，金属和烷氧桥都敏感的谱带出现在１５９５．１（以Ｈ２Ｐ为例）、１４９１．１、８５１．１和７２３．８ｃｍ－１附近，为３１８．３ｃｍ－１，为３７１．４ｃｍ－１．Ｍ－Ｎ（Ｍ为金属离子）与卟啉环复合振动的吸收频率变化的规律如下：（１）ＣＯ（Ⅱ）＞Ｍｎ（Ⅲ）＞Ｆｅ（Ⅲ）；（２）Ｍ－Ｎ伸缩振动为主的复合振动，ＭＰ＞Ｍｐ－ＭＰ、Ｍ－Ｎ弯曲振动为主的复合振动，ＭＰ＜Ｍｐ－ＭＰ．The FTIR spectra(3600～150 cm-1)of bisteraphenylmetalloporphyrin dimers linked by a flexible alkoxy chain were measured and investigated.The major bands have been empirically assigned in comparison with a large number of porphyrins and metalloporphyrin complexes.The metal sensitive bands were found at 1558;2,l472.2,1401.9,1350.5,l 001.7,965.9,877.3 and 798.8 cmr) The structure sensitive bands of both the metal and the alkoxy chain were found at l 595.1,1491.1' 851.1 and 723.8cm-1.The Mn-cl and Fe-cl were found at 3l8.2 and 371.4 cm-1 respectively. The vibration coupling between the M──Nand the porphyrin ring deformation is Co(Ⅱ)>Mn(Ⅲ)>Fe(Ⅲ).The vibration coupling between the M-Nstretching modes and the porphyrin ring deformation is MP>Mp-MP. The vibration coupling between the M-Nbending modes and the porphyrin ring deformation is MP<MP-MP.

关 键 词：金属卟啉 配合物 红外光谱 烷氧桥 

分 类 号：O641.4[理学—物理化学] O626.13[理学—化学]