Abstract

The intermolecular deuteron bonds formed between Cl<sub>3</sub>CD and ClCCl<sub>3</sub> are stronger than between Cl<sub>3</sub>CD and ClCCl<sub>2</sub>D, since the Cl atoms of CCl<sub>4</sub> are more basic than Cl atoms for CDCl<sub>3</sub>. The <i>n</i>-alkanes act as a diluent for CDCl<sub>3</sub> molecules, and the strength of the intermolecular proton bond in (Cl<sub>3</sub>CD:ClCCl<sub>2</sub>D)<sub><i>n</i></sub> complexes increases as <i>n</i> becomes larger. Solvent density also plays an important role in solute/solvent interaction. Increased solvent density causes the CD:Cl or CD:π (of C=C group) intermolecular bond distance to decrease, causing the bond to be stronger. A repulsion exists between the intermolecular π electron system of benzene, 1,3-cyclohexadiene, or 1,4-cyclohexadiene and the chlorine atom σ electrons of CDCl<sub>3</sub>, and this repulsive effect is a factor in establishing the equilibrium intermolecular bond distance formed between the CD:π bonds of benzene (or cyclohexadienes) and the proton of CDCl<sub>3</sub>. These conclusions are based on the study of the <i>v</i>CD, <i>v</i>C=C, and <i>v</i>(C=C)<sub>2</sub> frequencies vs. mole % CDCl<sub>3</sub> (or CHCl<sub>3</sub>)/solvent system.

PDF Article

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription