苯氧基乙酸,(苯硫基)乙酸和(苯基硒代)乙酸的质子电离热已使用石英温度计通过差示反应量热计进行了测量。已经证明酸度的变化取决于焓的变化,熵的变化大致保持恒定。通过测量0–40°范围内的形成常数,可以计算出形成酸的银络合物以及许多取代的(苯硫基)乙酸和(苯基硒代)乙酸的银络合物的热力学常数。稳定性顺序Se> S O已被证明是由于更有利的焓变化所致,而熵的变化则与复合物的形成相反。
Ligands containing elements of Group VIB. Part I. The silver complexes of substituted phenylthioacetic acids
作者:L. D. Pettit、A. Royston、R. J. Whewell
DOI:10.1039/j19680002009
日期:——
The stability constants of the silvercomplexes of 21 substitutedphenylthioaceticacids (HL) of general formula R·C6H4·S·CH2·CO2H have been measured, using a silver–silver chloride indicator electrode with a mercurous sulphate reference electrode, at 20·0° in a sodium acetate–acetic acid buffer solution (µ= 0·10M). Stability constants for the complex species AgL, AgHL+(µ= 0·20M), and AgL2– are calculated
A comparison of the donor properties of group VIB elements
作者:L. D. Pettit、A. Royston、C. Sherrington、R. J. Whewell
DOI:10.1039/c19670001179
日期:——
Ligands containing elements of Group VIB. Part IV. Thermodynamics of proton ionization and silver complex formation of substituted phenoxyacetic, (phenylthio)acetic, and (phenylseleno)acetic acids
作者:D. Barnes、P. G. Laye、L. D. Pettit
DOI:10.1039/j19690002073
日期:——
(phenylseleno)acetic acids have been measured with a differential reaction calorimeter using a quartz thermometer. Changes in acidity have been shown to be dependent on enthalpy changes, entropy changes remaining approximately constant. Thermodynamic constants for the formation of silvercomplexes of the acids, together with those of a number of substituted (phenylthio) acetic and (phenylseleno) acetic acids, have
苯氧基乙酸,(苯硫基)乙酸和(苯基硒代)乙酸的质子电离热已使用石英温度计通过差示反应量热计进行了测量。已经证明酸度的变化取决于焓的变化,熵的变化大致保持恒定。通过测量0–40°范围内的形成常数,可以计算出形成酸的银络合物以及许多取代的(苯硫基)乙酸和(苯基硒代)乙酸的银络合物的热力学常数。稳定性顺序Se> S O已被证明是由于更有利的焓变化所致,而熵的变化则与复合物的形成相反。