For non hydrogen bond molecules, the greater molecular inter-atomic forces, the higher boiling point of the material. As we know, molecular inter-atomic forces is divided into three parts:1, orientation force:  polar molecules, attraction forces of a negative charge center and the other charged positively center—Only with polar molecules, namely chlorinated cyclohexane, cyclohexane was not found the character of this force. 2. The induction force: different molecules induced dipole interaction; 3. The dispersion force: different molecular instantaneous dipole interaction, relative molecular mass is greater, the dispersion force is larger.

    Intermolecular force is the sum of the above three parts, because the chlorinated cyclohexane is polar molecule, so much more an attraction force  than the cyclohexane - orientation force; And the relative molecular weight of chlorinated cyclohexane is large, dispersion force is slightly bigger than the cyclohexane, in general, large molecular inter-atomic forces, high boiling point of chlorinated cyclohexane.