Tao Zhang, Yifeng Zhou, Jihu Shan, Jiaqi Hou, Chong Gu, Bing Wu
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Gelling performance of phenyl/biphenyl-based organogelators and multi-stimuli-responsive properties for detecting Cu2+
Two novel phenyl or biphenyl-based organogelators G1 and G2 were designed and synthesized. Owing to the non-coplanar geometry of the two benzene rings in biphenyl group, gelling performance of G1 was dramatically better than that of G2. Hydrogen bonding, π–π stacking and van der Waals interactions were emerged as the dominant intermolecular forces governing the self-assembly-driven gelation of G1. G1-DMSO gel could act as a multi-stimuli-responsive sensor for detecting Cu2+ and present selective gel–sol transformation and colorimetric changes. Furthermore, the selective ion-recognition properties of G1-DMSO gel for Cu2+ were investigated by UV–Vis spectra and ESI-MS. It was found that the detection limit for Cu2+ was 9.1445 × 10−6 M and the binding stoichiometric ratio of G1 to Cu2+ was 1:1.
期刊介绍：
Journal of Chemical Sciences is a monthly journal published by the Indian Academy of Sciences. It formed part of the original Proceedings of the Indian Academy of Sciences – Part A, started by the Nobel Laureate Prof C V Raman in 1934, that was split in 1978 into three separate journals. It was renamed as Journal of Chemical Sciences in 2004. The journal publishes original research articles and rapid communications, covering all areas of chemical sciences. A significant feature of the journal is its special issues, brought out from time to time, devoted to conference symposia/proceedings in frontier areas of the subject, held not only in India but also in other countries.
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