Low melting molecular complexes. The structures of molecular complexes of tri- and di-chloromethanes with small ketones and 1,4-dioxane

The crystals of nine new low-melting molecular complexes (LmMC) of chloroform and dichloromethane with organic solvents have been grown in situ and structurally characterized by single-crystal X-ray crystallography. In spite of seeming simplicity of the components, the structures display a variety of types and motifs of intermolecular interactions. The obtained structures are compared with the structures of pure components and previously known LmMC and some general tendencies are outlined.