Effect of fluorination on the partitioning of alcohols

Effect of fluorination on the partitioning of alcohols
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氟化对醇分配的影响

DOI:
10.1080/00268976.2019.1669837
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发表时间:
2019
期刊:
影响因子:
1.7
通讯作者:
Potoff, Jeffrey J.
Potoff, Jeffrey J.
中科院分区:
化学4区
文献类型:
--
作者:
Soroush Barhaghi, Mohammad;Luyet, Chloe;Potoff, Jeffrey J.

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为了了解醇在水和有机环境中的相互作用和分配的作用,等压-等温系综Monte Carlo模拟被用来确定环境预测因子,如水化和溶剂化的自由能在1-辛醇和正十六烷。计算进行与联合原子相平衡(TrapPE)力场的可转移势,并与现有的实验数据进行比较。TrapPE被发现提供可靠的定性预测的趋势方面的影响,CO2对分区。羟基周围的局部溶剂化环境的调查表明,最接近羟基的碳原子的碳原子数对醇在水,1-辛醇和正十六烷中的溶剂化自由能的影响最大。
In order to understand the role of fluorination on the interactions and partitioning of alcohols in aqueous and organic environments, isobaric-isothermal ensemble Monte Carlo simulations are used to determine environmental predictors, such as free energies of hydration and solvation in 1-octanol and n-hexadecane. Calculations are performed with the united-atom Transferable Potentials for Phase Equilibria (TraPPE) force field and compared against available experimental data. TraPPE was found to provide reliable qualitative predictions of trends with respect to the effect of fluorination on partitioning. Investigation of the local solvation environment around the hydroxyl group reveals that fluorination of carbons closest to the hydroxyl group has the greatest effect on solvation free energies for alcohols in water, 1-octanol and n-hexadecane.
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