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Estimation of vapor pressures of liquid and solid organic and organometallic compounds at 298.15 K
Fluid Phase Equilibria ( IF 2.8 ) Pub Date : 2020-09-01 , DOI: 10.1016/j.fluid.2020.112595
Michael H. Abraham , William E. Acree

Abstract Equations for vapor pressure VP, as log VP, at 298.15 K for a set of 1016 liquid organic and organometallic compounds have been constructed using Abraham descriptors. The regression standard deviations of 0.28 and 0.31 log units are excellent by comparison with literature values for large data sets. Similar equations for a set of 359 solid organic and organometallic compounds were very poor, but if carboxylic acids were excluded we obtained equations for 261 compounds with standard deviations of 0.62 and 0.66 log units. For the 98 carboxylic acids taken separately we obtained equations with standard deviations of 0.84 and 0.91 log units. Equations for the carboxylic acids were substantially different to those that excluded carboxylic acids, due, we suggest, to the particular dimeric structure of the crystalline carboxylic acids.

中文翻译:

液体和固体有机和有机金属化合物在 298.15 K 时的蒸气压估计

摘要 已经使用亚伯拉罕描述符构建了一组 1016 种液体有机和有机金属化合物在 298.15 K 时的蒸气压 VP 方程,作为 log VP。与大数据集的文献值相比,0.28 和 0.31 log 单位的回归标准偏差非常好。一组 359 种固体有机和有机金属化合物的类似方程非常糟糕,但如果排除羧酸,我们得到了 261 种化合物的方程,标准偏差为 0.62 和 0.66 log 单位。对于分别采用的 98 种羧酸,我们获得了标准偏差为 0.84 和 0.91 log 单位的方程。我们建议,由于结晶羧酸的特定二聚结构,羧酸的方程式与排除羧酸的方程式大不相同。
更新日期:2020-09-01
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