title: Self-assembly of meso-tetrakis(4-N-ethylpyridiniurmyl) porphyrin and tetracarboxyl-phenyl calix[4]arene.
abstract: Novel dimeric capsules are generated from the noncovalent assembly of 5, 10, 15, 20-tetrakis(4-N-ethylpyridiniurmyl)prophyrin (TEPyP) and tetracarboxyl-phenyl calix[4]arene. The self-assembly system was investigated based on UV-Vis absorption and fluorescent spectra. The factors affecting the interaction process including pH and concentration were examined in detail. The association constants between TEPyP and calix[4]arene were determined by the nonlinear least squares fit. The results showed that the basic medium is favourable to the interaction and electrostatic interaction was determinate in the processes of self-assembly process. The related mechanism was discussed.
authors.affiliation: Department of Chemistry, Institute of Advanced Chemistry, School of Chemistry and Chemical Engineering, Shanxi University, Wucheng Road, Taiyuan 030006, China.
authors.forename: Yingli
authors.initials: Y
authors.lastname: Wei
authors.forename: Xiliang
authors.initials: X
authors.lastname: Guo
authors.forename: Shaomin
authors.initials: S
authors.lastname: Shuang
authors.forename: Chuan
authors.initials: C
authors.lastname: Dong
authors.forename: Xiaohua
authors.initials: X
authors.lastname: Sun
authors.forename: Manshing
authors.initials: M
authors.lastname: Wong
mesh_terms: D047250:Calixarenes / Q000737:chemistry*; D004305:Dose-Response Relationship, Drug; D006863:Hydrogen-Ion Concentration; D015394:Molecular Structure; D011166:Porphyrins / Q000737:chemistry*; D013050:Spectrometry, Fluorescence; D013056:Spectrophotometry, Ultraviolet
chemical_list: D011166:Porphyrins; D047250:Calixarenes