Effect of temperature and solvents on ultrasonic velocity and thermodynamic parameters of 1,3,4-oxadiazole derivative solutions
作者:D.R. Godhani、P.B. Dobariya、A.M. Sanghani
DOI:10.1016/j.molliq.2012.01.020
日期:2012.4
stability and kinetic parameters were determined according to the Freeman–Anderson method. The density (ρ), viscosity (η) and ultrasonic velocity (U) of pure solvents (chloroform (CF), N,N-dimethyl formamide (DMF)) and solutions of PDI-H (0.01–0.001 M) in CF and DMF were investigated at three different temperatures: 303 K, 308 K and 313 K. Using ρ, η and U data various thermodynamic parameters such as adiabatic
本工作描述了2-(((4-乙酰基-5-甲基-5-苯基-4,5-二氢-1,3,4-恶二唑-2-基)的合成,表征,热分析和理化参数)(甲硫基)-3-邻甲苯基喹唑啉-4(3H)-1(PD I-H)。化合物PD I-H是通过使用标准方案合成的。通过使用TLC监测纯度,并通过IR和NMR光谱技术进行表征。通过TGA和DTA技术在氮气气氛中以10°C / min的升温速率研究了PD I-H的热行为。根据Freeman-Anderson方法确定热稳定性和动力学参数。密度(ρ),粘度(η)和超声速度(U)分别在303 K,308 K和313 K三个不同温度下研究了纯溶剂(氯仿(CF),N,N-二甲基甲酰胺(DMF))和PD I-H(0.01 – 0.001 M)在CF和DMF中的溶液。使用ρ,η和ü数据的各种热力学参数,如绝热压缩(κ一个),分子间自由路径长度(大号˚F),Rao的摩尔声音功能(ř米),范