对位取代四苯基卟啉及其铁(Ⅲ)配合物的~1H NMR研究

1H NMR STUDY ON PARA-SUBSTITUTED TETRAPHENYLPORPHYRINS AND FERRIC PORPHYRIN COORDINATION COMPOUNDS

本文用BRUKER MSL-400型超导核磁共振仪,对于对位取代四苯基卟啉[H_2(p-X)TPP,X=Cl,H,CH_3,OCH_3],对位取代四苯基卟啉铁(Fe(Ⅲ)(p-X)TPPCl)及其轴向配合物([Fe(Ⅲ)(p-X)TPP(HIm)_2]^+Cl^-,([Fe(Ⅲ)(p-CH_3)TPPYm]^+Cl^-,Y=2-CH_3Im,2-C_2H_5-4-CH_3Im,n-C_3H_7NH_2,N(C_2H_5)_3)的质子核磁共振谱进行了较系统的研究,探讨了分子对称性、电子结构、顺磁效应等对~1H NMR谱的影响以及铁卟啉配合物的电子自旋离域机理。

Proton nuclear magnetic resonance spectra of H2(p-X)TPP, Fe(p-X)TPPCl, [Fe(p-X)TPP(HIm)2]+Cl- and other axial coordination compounds were recorded and analyzed systematically by means of BRUKER MSL-400 MHz superconducting nuclear magnetic resonance instrument. The molecular symmetry, electronic structure, paramagnetic effect and the spin-delocalization mechanism of iron porphyrins were discussed.