Transition metal complexes of meso-tetra(4-myristyloxyphenyl)porphyrin TMPPM [M =Mn, Fe, Co, Ni, Cu, Zn; TMPP=mesotetra(4-myristyloxyphenyl)porphyrin] have been synthesized and characterized by means of elemental an...Transition metal complexes of meso-tetra(4-myristyloxyphenyl)porphyrin TMPPM [M =Mn, Fe, Co, Ni, Cu, Zn; TMPP=mesotetra(4-myristyloxyphenyl)porphyrin] have been synthesized and characterized by means of elemental analyses, UV-Vis spectra, infrared photoacoustic spectra, 1H NMR spectra, molar conductance and differential scanning calorimetry(DSC). The ligand and the Zn complex show liquid crystalline behavior. According to the DSC thermogram of the Zn complex, it exhibits a lower phase transition temperature -7.453 ℃ and a wide mesophase temperature span, 77 ℃.展开更多
Synthesis of a new high sensitive water soluble chromogenic reagent mes o tetra (2 chloro 4 sulfophenyl)prophyrin and the conditions for the reaction of this reagent with cadmiun(Ⅱ) were studied. The apparent...Synthesis of a new high sensitive water soluble chromogenic reagent mes o tetra (2 chloro 4 sulfophenyl)prophyrin and the conditions for the reaction of this reagent with cadmiun(Ⅱ) were studied. The apparent molar absorption coefficient at 434 nm is 5.20×10 5 L·mol -1 ·cm -1 . The method has been applied to the determination of 5.0×10 -9 (content by weight) Cadmium(Ⅱ) in honey.展开更多
文摘Transition metal complexes of meso-tetra(4-myristyloxyphenyl)porphyrin TMPPM [M =Mn, Fe, Co, Ni, Cu, Zn; TMPP=mesotetra(4-myristyloxyphenyl)porphyrin] have been synthesized and characterized by means of elemental analyses, UV-Vis spectra, infrared photoacoustic spectra, 1H NMR spectra, molar conductance and differential scanning calorimetry(DSC). The ligand and the Zn complex show liquid crystalline behavior. According to the DSC thermogram of the Zn complex, it exhibits a lower phase transition temperature -7.453 ℃ and a wide mesophase temperature span, 77 ℃.
文摘Synthesis of a new high sensitive water soluble chromogenic reagent mes o tetra (2 chloro 4 sulfophenyl)prophyrin and the conditions for the reaction of this reagent with cadmiun(Ⅱ) were studied. The apparent molar absorption coefficient at 434 nm is 5.20×10 5 L·mol -1 ·cm -1 . The method has been applied to the determination of 5.0×10 -9 (content by weight) Cadmium(Ⅱ) in honey.