论文部分内容阅读
在四-(邻氯苯基)卟吩及其金属络合物中,苯环上一个邻位质子被氯原子取代,导致其余苯环质子和全部苯环碳原子成为磁不等性核,从而出现比未取代的四苯基卟吩及其金属络合物为多的化学位移。对于In(OClTPP)Cl,NMR时标上缓慢的轴向配位体交换和苯环相对于卟啉平面的缓慢旋转,导致苯环两侧的不等性;因此,苯环邻位和间位的质子和碳原子各呈现两个不同的化学位移值。本工作测量和归属了H_2(OClTPP)及其诈、镉、镍、铟络合物的质子谱和~(13)C谱,使用偏共振实验以辅助谱的归属。
In tetrakis- (o-chlorophenyl) porphine and its metal complexes, an ortho-proton on the benzene ring is replaced by a chlorine atom, resulting in the remaining benzene ring protons and all benzene ring nuclei become magnetic inequalities, thus More chemical shifts occur than unsubstituted tetraphenylporphins and their metal complexes. For In (OClTPP) Cl, slow axial ligand exchange at NMR and slow rotation of benzene ring relative to the porphyrin plane lead to inequality on both sides of the benzene ring; therefore, the ortho and meta positions of the benzene ring The protons and carbon atoms each exhibit two different chemical shift values. In this work, the proton spectra and ~ (13) C spectra of H 2 (OClTPP) and its chelating, cadmium, nickel and indium complexes were measured and assigned, and partial resonance experiments were used to assist the assignment of spectra.