Bhavya P V, Rabecca Jenifer V, Muthuvel Panneerselvam, Mohan Das T
Department of Chemistry, School of Basic and Applied Sciences, Central University of Tamil Nadu (CUTN) Thiruvarur 610005 India
Department of Organic Chemistry, University of Madras, Guindy Campus Chennai - 600025 India.
RSC Adv. 2019 Dec 19;9(72):42219-42227. doi: 10.1039/c9ra08033c. eCollection 2019 Dec 18.
A novel class of 4,6--butylidene/ethylidene/benzylidene β-d-glucopyranose gelator functionalized with photo-responsive azobenzene moieties were designed and synthesized and also characterized using different spectral techniques. These azobenzene-based organogelators can gel even at lower concentrations (critical gelation concentration - 0.5% and 1%). A morphological study of the gels shows one-dimensional aggregated bundles and helical fibres. The main driving force for the self-assembly is through cooperative interactions exhibited by the different groups , sugar hydroxyl (hydrogen bonding interaction), azobenzene (aromatic π-π interaction) and alkyl chain of the protecting group (van der Waals interaction).
设计并合成了一类新型的用光响应偶氮苯部分功能化的4,6-亚丁基/亚乙基/亚苄基β-D-吡喃葡萄糖凝胶剂，并使用不同的光谱技术对其进行了表征。这些基于偶氮苯的有机凝胶剂即使在较低浓度（临界凝胶化浓度 - 0.5% 和 1%）下也能形成凝胶。对凝胶的形态学研究显示出一维聚集束和螺旋纤维。自组装的主要驱动力是通过不同基团表现出的协同相互作用，糖羟基（氢键相互作用）、偶氮苯（芳香π-π相互作用）和保护基团的烷基链（范德华相互作用）。
