Fig. 3.
Molecular descriptors of ER and IP. (A) Plot of Δ(νsymCH2) against molecular descriptors for fluidizers (red circles) and extractors (green circles). Change in the absorbance of the methylene stretching peak correlates with logarithm of octanol-water partition coefficient (log P) for fluidizers and the ratio of hydrogen bonding (δh) to square root of cohesive energy density (EC) for extractors. Error bars correspond to SD (n = 3). (B) IP correlates with the ratio of hydrogen bonding interactions (δh) to polar interactions (δp).