Nonspecific solute-solvent interactions in binary solvent mixtures containing an aprotic hydrogen-bond acceptor and a hydrogen-bond donor: Dipolarity/polarizability and refractive index

This work presents an analysis of the relationships between molecular-micro scopic solvent descriptors that consider different type of interactions (pi *, pi (2)*, and E-T(N) scales). for binary mixtures made of a polar hydroge n-bond acceptor solvent and a cosolvent with hydrogen-bond donor capability . The solvent descriptors consider different types of interactions for bina ry mixtures of a polar hydrogen-bond acceptor solvent and a cosolvent with hydrogen-bond donor capability. The study pays particular attention to the influence of the dipolarity/polarizability solvent property contamination b y specific interactions due to the preferential solvation of the reference indicators by the cosolvent, It also gives the refractive indexes of the mi xtures and relates these values With pi (*)(2) values calculated from beta -carotene, thus providing an equation which can be used to estimate an unkn own molecular-microscopic binary mixture solvent property from the measurem ent of the macroscopic property.