Manifestation of resonance dipole-dipole interaction in spectra of low-temperature molecular mixtures of C2F6 in CF4 and CF4 in C2F6

作者：Golubkova O S^*; Bocharov V N; Kolomiitsova T D; Shchepkin D N

来源：Optics and Spectroscopy, 2013, 114(5): 762-768.

DOI：10.1134/S0030400X13040085

We have measured IR absorption spectra of solutions C2F6 in CF4 (T = 178 K) and CF4 in C2F6 (T = 173 K) in the overtone range of the spectrum. We have studied how the resonance dipole-dipole interaction affects the formation of contours of bands that correspond to transitions to states involving the vibrations nu(10)(C2F6) and nu(3)(CF4), which are strong in the dipole absorption. For the system C2F6 in liquid CF4, the state nu(2) + nu(10)(C2F6) resonantly interacts with the state nu(2)(C2F6) + nu(3)(CF4), and, for the system CF4 in liquid C2F6, the state nu(1) + nu(3)(CF4) resonantly interacts with the state nu(1)(CF4) + nu(10)(C2F6). The contours of the bands nu(2) + nu(10) (C2F6) in the spectrum of the mixture with CF4 and of the bands nu(1) + nu(3)(CF4) in the spectrum of the mixture with C2F6 have been calculated.

• 出版日期2013-5