Physicochemical study on molecular interactions in ternary aqueous solutions of the pharmaceutically active ionic liquid cetylpyridinium salicylate and amino acid/glycylglycine at different temperatures
作者:Zhenning Yan、Xingxing Cao、Meng Sun、Lulu Zhang
DOI:10.1016/j.molliq.2020.115258
日期:2021.3
conductivity and UV–visible spectra at different temperatures. The measured density data was used to compute the apparent molar volume at infinite dilution, V2, φ0, the hydration number, nH, the transfer volume, ∆tV0, and the apparent molar expansibility at infinite dilution, E ∅ o, of AAGG in aqueous [CetPy][Sal] solution. The measured electrical conductivity was used to calculate the critical micelle
合成了离子液体,水杨酸十六烷基吡啶鎓([CetPy] [Sal])的药物活性形式,[CetPy] [Sal]与氨基酸(甘氨酸,L-丙氨酸,L-缬氨酸和L)的分子间相互作用-亮氨酸)和甘氨酰甘氨酸(AAGG)在水性介质中的温度通过测量不同温度下的密度,电导率和紫外线可见光谱进行了研究。所测量的密度数据被用来计算表观摩尔体积在无限稀释,V 2,φ 0,水合数,Ñ ħ,转印体积,Δ吨V 0,并在无限稀释表观摩尔扩展性,È ∅ ö[CetPy] [Sal]水溶液中的AAGG。测量的电导率用于计算AAGG溶液中[CetPy] [Sal]胶束化的临界胶束浓度,cmc和相对热力学量,即吉布斯自由能,焓和熵的变化。[CetPy] [Sal]与AAGG之间的结合常数来自UV-vis光谱数据。根据所研究的(AAGG + [CetPy] [Sal] +水)三元溶液中的分子相互作用和结构变化,分析了上述特性。