The Effect Of Side Chain Substituent In The Fabrication Of Organic-inorganic Supramolecular Polymer By Cation-templated Self-assembly

In recent years, organic-inorganic hybrid materials attracted more and more attention because of their rich structures and unique properties. Template method as one of the most important strategies for the synthesis of organic-inorganic hybrid materials has been widely used. However, the rational design templates and then fabrication of organic-inorganic hybrid materials with unique structure and properties by template-induced is still a challenge. Therefore, it’s very necessary to carry out the relevant research.We design and synthesis a series of 1, ω-bolaamphiphiles cationic template with side chain, cation-templated self-assembly of them with Cu SCN, and 8 compounds were obtained: {（bmpm） [Cu₂（SCN）₄]}_n（bmpm = 1,1’-bis（4-methylpyridine）methylene）（1）, {（bmpe） [Cu₂（SCN）₄]}_n（bmpe = 1,2-bis（4-methylpyridine）ethane）（2）, {（blm） [Cu3（SCN）5]}n（3）, {（ble） [Cu₂（SCN）₄]}_n（4）, {（blp） [Cu₂（SCN）₄]}_n（5）, {（blb） [Cu₂（SCN）₄]}_n（6）, {（blpt） [Cu₂（SCN）₄]}_n（7）,{（blh） [Cu₂（SCN）₄]}_n（8）,（blm = 1, 1’-bis（3, 5-lutidine）methylene, ble = 1, 2-bis（3,5-lutidine）ethane, blp = 1, 3-bis（3, 5-lutidine）propane, blb = 1, 4-bis（3,5-lutidine）butane, blpt = 1, 5-bis（3, 5-lutidine）pentane, blh = 1, 6-bis（3, 5-lutidine）hexane）)。Structure analysis showed that this series of compounds possess the infinite2 D to 3D polypseudorotaxane. Semiconductor band gap and photocatalytic performance of these compounds have been studied systematically. The third-order NLO of 1 and 2, photoluminescence and emission decay lifetimes of 3-8 and fluorescent probe for detecting small molecules of compound 5 were also evaluated.The anchoring effect of side chain substituent in the fabrication of organic-inorganic polypseudorotaxane by cation-templated self-assembly has been intensively studied.Next, two novel iodoplumbate hybrids templated by multivalent organic cation{（tbp）2[Pb3I12]}n（9）（tbp=1,3,5-tri（N-pyridinium methyl）benzene tribromide）,{（tbpm）[Pb3I9]·H2O}n（10）（tbpm=1,3,5-tri（4-methylpyridiniummethyl） benzene tribromide） have been synthesized and characterized. Compound 9 was selected as an example to explore the mechanism of photocatalytic. And the stability of 9-10 wasevaluated. Furthermore, the side chain’s effect on the fabrication of iodoplumbate and the photocatalytic performances was also investigated...