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Supramolecular self-assembly of two-component systems comprising aromatic amides/Schiff base and tartaric acid
Frontiers of Chemical Science and Engineering ( IF 4.5 ) Pub Date : 2020-07-31 , DOI: 10.1007/s11705-019-1865-5
Xin Wang , Wei Cui , Bin Li , Xiaojie Zhang , Yongxin Zhang , Yaodong Huang

The gelating properties and thermotropic behaviors of stoichiometric mixtures of aromatic amides 1, 2, and the aromatic Schiff base 3 with tartaric acid (TA) were investigated. Among the three gelators, 2-TA exhibited superior gelating ability. Mixture 2-TA exhibits a smectic B phase and an unidentified smectic mesophase during both heating and cooling runs. The results of Fourier transform infrared spectroscopy and X-ray diffraction revealed the existence of hydrogen bonding and π-π interactions in 2-TA systems, which are likely to be the dominant driving forces for the supramolecular self-assembly. Additionally, it was established that all of the studied gel self-assemblies and mesophases possess a lamellar structure. The anion response ability of the tetrahydrofuran gel of 2-TA was evaluated and it was found that it was responsive to the stimuli of F,Cl,Br,I, AcO.



中文翻译:

两组分体系的超分子自组装,包括芳族酰胺/席夫碱和酒石酸

研究了芳族酰胺1、2和芳族席夫碱3与酒石酸(TA)的化学计量混合物的胶凝特性和热致行为。在这三种胶凝剂中,2- TA显示出优异的胶凝能力。混合物2- TA在加热和冷却运行期间均表现出近晶B相和未鉴定的近晶中间相。傅立叶变换红外光谱和X射线衍射的结果表明,在2中存在氢键和π-π相互作用-TA系统,可能是超分子自组装的主要驱动力。另外,已经确定所有研究的凝胶自组装体和中间相都具有层状结构。的四氢呋喃凝胶的阴离子反应的能力2 -TA进行评价,并且发现它是响应于F的刺激- ,氯- ,溴- ,我-,ACO -

更新日期:2020-09-28
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