Browsing by Author "Goates, J. Rex"

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    Solid/Liquid Phase Equilibria and Solid Compound Formation in Mixtures of Dimethyl Sulphoxide with CC14, CHC13, and CC13CHC12
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1972, 68 (11), 1972) Goates, J. Rex; Ott, J. B.; Reeder, J.; Lamb, J. D.
    Solid/liquid phase diagrams have been obtained from time against temperature cooling and warming curves for the three binary systems formed from dimethyl sulphoxide (DMSO) with CCl4, CHCl3, and CCl3CHCl2. The CHCl3+ DMSO system forms both a stable and a metastable solid addition compound. The empirical formula for both compounds is DMSO ·(CHCl3)2. A single addition compound with the empirical formula DMSO · CCl3CHCl2 forms in the DMSO + CCl3CHCl2 system. DMSO and CCl4 form a simple eutectic system with no evidence for solid compound formation. The presence and absence of compounds in these systems is in qualitative agreement with the concept that the bonding is from hydrogen bonds formed between the DMSO oxygen and the hydrogen in the chlorinated compounds.
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    Solid/Liquid Phase Equilibria and Solid Compound Formation in Mixtures of Hexafluorobenzene with Nitrogen Containing Compounds
    (Journal of the Chemical Society : Faraday Transaction - I. The Chemical Society, London. 1974, 70 (07), 1974) Ott, J. Bevan; Goates, J. Rex; Reeder, Joan; Shirts, Randall B.
    Thermal methods have been used to determine with high precision the solid/liqnid phase equilibria diagrams tor mixtures of hcxafluorobcnzene with Y-methylmorpholine, TV-methyipipcridinc and AW'-dimcthylpiperazine. Solid addition compounds form in all three systems. Exploratory measurements show that hcxafluorobcnzene docs not form solid addition compounds with triethyl amine, acetonitrile or AW-dimcthylacetamide. A comparison of the phase diagrams for a number of systems containing hcxafluorobcnzene suggests that compound formation with hcxafluorobcnzene results from a combination of favorable packing geometry and electrostatic interactions.