Experimental solubility data have been obtained for sixteen organic solutes in molten polystyrene by a gas chromatographic procedure for temperatures from 408° to 503°K and pressures to 4 atm. The effects of diffusion and adsorption of the solute on the substrate were considered. The Henry's law constants resulting from this study and those obtained by other investigators were related to the reduced temperature. The effect of pressure on the Henry's law constants is also discussed, and a relationship is presented for the heat of solution.

The infrared spectra of CF3CH2F, CF3CH2Cl, CF3CH2Br, and CF3CH2I in the vapor and solid phase have been obtained, and normal coordinate calculations on the chlorine and bromine molecules have been carried out. From this study it has been possible to correct the previous assignments of vibrational fundamentals for these molecules.

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The infrared spectra of trifluoroamine oxide and its 15N analogue have been measured from 4000 to 260 cm−1. Fundamental frequency assignments (based upon C3ν symmetry) made from the 14N spectrum are: ν1( a1) = 1689, ν2( a1) = 740, ν3( a1) = 528, ν4( e) = 880, and ν6( e) = 398 cm−1. Normal coordinate calculations support the assignment of the remaining fundamental ν5( e) to a band system appearing as a shoulder, about 558 cm−1, on the intense ν3( a1) fundamental.

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