The method of Adler was improved to prepare a series of 5,10,15,20-tetrakis(4-alkoxyphenyl)porphyrins and their complexes containing Fe3+, Mn3+, Pb2+, Co2+, Cu2+, Zn2+. Among them there were seven new compounds. All t...The method of Adler was improved to prepare a series of 5,10,15,20-tetrakis(4-alkoxyphenyl)porphyrins and their complexes containing Fe3+, Mn3+, Pb2+, Co2+, Cu2+, Zn2+. Among them there were seven new compounds. All these compounds were identified through 1H NMR, MS, IR, UV and Element analysis. The correlation between the structure of compounds and their 1H NMR, MS, IR, UV spectra was discussed and their specific spectra were explained. We found nine metalloporphyrins exhibited liquid crystal behaviour through DSC and polarized-light microscope. They had one to three mesophases and certain phase transition temperature, ?H and temperature range of L.C(?T).展开更多
Synthesis of fourteen new complexes of meso-tetrakis（4-alkoxyphenyl） porphyrins with Co2+, Cu2+, Zn2+, Pb2+ were presented in this paper. Meso-tetrakis （4-alkoxyphenyl） porphyrins were prepared by condensation of ...Synthesis of fourteen new complexes of meso-tetrakis（4-alkoxyphenyl） porphyrins with Co2+, Cu2+, Zn2+, Pb2+ were presented in this paper. Meso-tetrakis （4-alkoxyphenyl） porphyrins were prepared by condensation of 4-alkoxybenzaldehydes with pyrrole, then treated with corresponding metallic acetate to produce mentioned complexes, IR, UV, 1H NMR, MS and elementary analysis were explored to confirm the structures of all theses new complexes. Characteristic spectrometric data of IR, UV, 1H NMR related to these complexes have been systematically summarized. Ten of the fourteen complexes were found to exhibit liquid crystal properties.展开更多
文摘The method of Adler was improved to prepare a series of 5,10,15,20-tetrakis(4-alkoxyphenyl)porphyrins and their complexes containing Fe3+, Mn3+, Pb2+, Co2+, Cu2+, Zn2+. Among them there were seven new compounds. All these compounds were identified through 1H NMR, MS, IR, UV and Element analysis. The correlation between the structure of compounds and their 1H NMR, MS, IR, UV spectra was discussed and their specific spectra were explained. We found nine metalloporphyrins exhibited liquid crystal behaviour through DSC and polarized-light microscope. They had one to three mesophases and certain phase transition temperature, ?H and temperature range of L.C(?T).
文摘Synthesis of fourteen new complexes of meso-tetrakis（4-alkoxyphenyl） porphyrins with Co2+, Cu2+, Zn2+, Pb2+ were presented in this paper. Meso-tetrakis （4-alkoxyphenyl） porphyrins were prepared by condensation of 4-alkoxybenzaldehydes with pyrrole, then treated with corresponding metallic acetate to produce mentioned complexes, IR, UV, 1H NMR, MS and elementary analysis were explored to confirm the structures of all theses new complexes. Characteristic spectrometric data of IR, UV, 1H NMR related to these complexes have been systematically summarized. Ten of the fourteen complexes were found to exhibit liquid crystal properties.
