Building Chemical Intuition about Physicochemical Properties of C8-Per-/Polyfluoroalkyl Carboxylic Acids through Computational Means.

Authors :: Antle JP
LaRock MA
Falls Z
Ng C
Atilla-Gokcumen GE
Aga DS
Simpson SM
Source :: ACS ES&T engineering [ACS ES T Eng] 2024; Vol. 4 (1), pp. 196-208. Date of Electronic Publication: 2023 Dec 04.
Publication Year :: 2024
Abstract: We have predicted acid dissociation constants (p K <subscript>a</subscript> ), octanol-water partition coefficients ( K <subscript>OW</subscript> ), and DMPC lipid membrane-water partition coefficients ( K <subscript>lipid-w</subscript> ) of 150 different eight-carbon-containing poly-/perfluoroalkyl carboxylic acids (C8-PFCAs) utilizing the COnductor-like Screening MOdel for Realistic Solvents (COSMO-RS) theory. Different trends associated with functionalization, degree of fluorination, degree of saturation, degree of chlorination, and branching are discussed on the basis of the predicted values for the partition coefficients. In general, functionalization closest to the carboxylic headgroup had the greatest impact on the value of the predicted physicochemical properties.<br />Competing Interests: The authors declare no competing financial interest.

Full Text Access

Tools