Energetics of molecular interactions in binary mixtures of non-electrolytes containing a salt

Abstract

Molar excess enthalpy data have been measured at 308.15 K for pyridine (saturated with anhydrous cupric chloride) A (s)–aniline, O-toluidine (OT), formamide(FD) or N,N-dimethyl-formamide(NND)(B) mixtures, and have been utilized to study the energetics of molecular interactions in them. The results show that compared to aniline or (NND), OT or (FD) coordinates strongly with the central copper atom in (py₂ CuCl₂) A(s) to yield (B py CuCl₂) molecular entities.