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Photocontrollable Supramolecular Self‐Assembly of a Porphyrin Derivative that Contains a Polyhedral Oligomeric Silsesquioxane (POSS)
Author(s) -
Zhang Yong,
Yue Tao,
Cao Hongliang,
Gao Yun,
Zhang Weian
Publication year - 2017
Publication title -
asian journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.846
H-Index - 44
eISSN - 2193-5815
pISSN - 2193-5807
DOI - 10.1002/ajoc.201700223
Subject(s) - azobenzene , silsesquioxane , porphyrin , chemistry , supramolecular chemistry , micelle , polymer chemistry , derivative (finance) , self assembly , solvent , photochemistry , molecule , organic chemistry , polymer , aqueous solution , financial economics , economics
In this study, we have synthesized a new photosensitive organic–inorganic POSS‐containing hybrid porphyrin derivative (H 2 TPP−Azo−POSS), in which azobenzene was used as a bridge to conjugate the porphyrin and POSS, by using click chemistry. The self‐assembly behavior of H 2 TPP−Azo−POSS was studied at different concentrations in CHCl 3 and in CHCl 3 / n ‐hexane mixed solvent systems. Our results showed that the self‐assembled morphology of H 2 TPP−Azo−POSS could be tuned by varying the concentration and polarity of the solvent. Spherical micelles and linear nanowires could be obtained in CHCl 3 , whilst vesicles could be formed in CHCl 3 / n ‐hexane mixtures with low polarities. The supramolecular self‐assembled morphologies of H 2 TPP−Azo−POSS demonstrated a light‐triggered transition behavior, whilst the size of the assembled aggregates decreased significantly under UV irradiation.