Rate-limiting deprotonation in the base-catalyzed ammoniation of asymmetric trans-diacidobis(ethylenediamine)cobalt(III) perchlorates in liquid ammonia

New chemistry of (difluoromethyl)phosphines

“…(CF3PCF2)2, but the resulting mixtures were not always completely resolved 6. The present paper describes a more systematic ap-(1) Goldwhite, H.; Haszeldine, R. N.; Rowsell, D. G. J. Chem.…”

“…The anhydride and the ester were identified by the NMR spectra shown in Table I. The ester (found molecular weight 147 vs. calculated 146) showed volatility 6.5 mm at -22.5 °C, 32.3 mm at 0 °C, and 110.1 mm at 20.9 °C, suggesting log P (6) Burg, A. B.…”

“…The new compound (CH-F2)2PI can be purified by repeated high-vacuum fractional con- "The three products of experiment 3 were removed, and the process was continued with the remaining reactants in the same tube. 6 Here only the product (CHF2)2PI was removed, and the rest was returned to the same tube for further action. The purpose here was to maximize (CHF2)2PI at the expense of (CHF2)3P and CHF2PI2.…”

“…One such product may have been (CF3)3P, formed by a process like that which led to the first observation of (CHF2)3P. 6 The volatility of the pure hybrid diphosphine (4.0 mm at 0 °C, 8.0 mm at 10.2 °C, and 15.3 mm at 21.2 °C) suggests the equation log P = 7.0349 + 1.75 log T -0.006T-2474/T (bp 116.4 °C; Trouton constant 22.8 eu), the high curvature of which would relate to the suggested ••• attraction.…”