Raman spectroscopic investigation of interactions in a naphthalene: Octafluoronaphthalene crystalline complex

The nature of interactions between naphthalene and octafluoronaphthalene in the C₁₀H₈:C₁₀F₈ crystalline complex is studied by Raman spectroscopy. Phonon bands are examined within the framework of our previously proposed sublattice and giant molecule models to derive information regarding the strength of the interactions. To investigate the specific nature of these interactions, a comparative study is made of the internal vibrations observed in the C₁₀H₈:C₁₀F₈ complex with those found in pure one component crystals. The result obtained indicates that although naphthalene and octafluoronaphthalene weakly interact, specific electrostatic polarization interactions do exist in the C₁₀H₈:C₁₀F₈ crystalline complex.