Primary Ammonium Monocarboxylate Synthon in Designing Supramolecular Gels: A New Series of Chiral Low-Molecular-Weight Gelators Derived from Simple Organic Salts that are Capable of Generating and Stabilizing Gold Nanoparticles
作者:Uttam Kumar Das、Subhabrata Banerjee、Parthasarathi Dastidar
DOI:10.1002/asia.201300805
日期:2013.12
synthon has been exploited to generate a new series of PAM salts from the free amine of L‐phenylalanine‐3‐pyridyl amide, (S)‐2‐amino‐3‐phenyl‐N‐(pyridine‐3‐yl)propanamine (designated as “B”), and various substituted benzoic acids (designated as “A(R)”; R=4‐Me, 4‐Cl, 4‐Br, 4‐NO2, 3‐Me, 3‐Cl, 3‐Br, 3‐NO2, 2‐Me, 2‐Cl, 2‐Br, 2‐NO2). The 4‐ and 3‐substituted benzoate salts showed moderate‐to‐excellent gelation
伯一羧酸铵(PAM)合成子已被利用来从L-苯丙氨酸-3-吡啶基酰胺的游离胺(S)-2-氨基-3-苯基N吡啶形成一个新的PAM盐系列。3-基)丙胺(表示为B)和各种取代的苯甲酸(表示为A(R) ; R = 4-Me,4-Cl,4-Br,4-NO 2,3 -Me ,3-氯,3-溴,3- NO 2,2-ME,2-氯,2-溴,2- NO 2)。4和3取代的苯甲酸盐在多种极性和非极性溶剂中均表现出中等至优异的胶凝能力。通过DSC,流变学,SEM和TEM,FTIR光谱等对凝胶进行了表征。基于单晶粉末X射线衍射(PXRD)和FTIR数据的结构性质研究提供了对PAM合成子在地层中的作用的见解。凝胶网络。有趣的是,某些凝胶能够在室温下形成和稳定金纳米颗粒,而无需使用任何外源性还原剂。