Thermodynamics of proton dissociation of acridinium ion in aqueous solution

被引：0

作者：

Ros, Maria P. ^{[1
]}

Thomas, Jesus ^{[1
]}

Crovetto, Guillermo ^{[1
]}

Llor, Juan ^{[1
]}

机构：

[1] Universidad de Granada, Granada, Spain

来源：

Reactive and Functional Polymers | 1998年 / 36卷 / 03期

关键词：

Dissociation - Enthalpy - Entropy - Gibbs free energy - Ionic strength - Protons - Solutions - Specific heat - Thermal effects;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Standard thermodynamic function changes (ΔG°θ, ΔH°θ, ΔS°θ and ΔC°pθ) are reported for proton dissociation of acridinium cation in aqueous solution. These values have been determined from a series of precise and accurate acid equilibrium constants, Ka. The equilibrium constants have been obtained spectrophotometrically over a range of temperatures from 2 to 66 °C at several ionic strengths (I = 0.005, 0.007, 0.01, 0.05 and 0.25 M). Although the ionic strength does not affect in general the Gibbs free-energy values, the results suggest a possible influence on entropy and enthalpy changes.

引用

页码：217 / 220