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- Title
Living Supramolecular Polymerization of an Aza‐BODIPY Dye Controlled by a Hydrogen‐Bond‐Accepting Triazole Unit Introduced by Click Chemistry.
- Authors
Wang, Houchen; Zhang, Yongjie; Chen, Yuanfang; Pan, Hongfei; Ren, Xiangkui; Chen, Zhijian
- Abstract
An aza‐BODIPY dye 1 bearing two hydrophobic fan‐shaped tridodecyloxybenzamide pendants through 1,2,3‐triazole linkages was synthesized by a click reaction and characterized. 1H NMR studies indicated that dye 1 exhibited variable conformations through intramolecular H‐bonding interaction, which is beneficial for the polymorphism of aggregation. The thermodynamic, structural, and kinetic aspect of the supramolecular polymerization of dye 1 was investigated by UV/Vis absorption spectroscopy, IR spectroscopy, AFM, TEM, and SEM. Biphasic aggregation pathways of dye 1, leads to the formation of off‐pathway, metastable Agg. I and thermodynamically stable Agg. II with distinct H‐aggregation spectra and nanoscale morphology. The living manner of the supramolecular polymerization of dye 1 was demonstrated in seeded polymerization experiments with temperature‐modulated successive cooling–heating cycles.
- Subjects
CLICK chemistry; LIVING polymerization; DYES &; dyeing; POLYMERIZATION; AZA compounds
- Publication
Angewandte Chemie, 2020, Vol 132, Issue 13, p5223
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201914966