An infrared study of co-ordinated BH3 and BH2 groups as proton acceptors in hydrogen bonding
作者:M. P. Brown、R. W. Heseltine、Pamela A. Smith、P. J. Walker
DOI:10.1039/j19700000410
日期:——
Boron co-ordination compounds of the type L,BH3(L = Me3N, Et3N, Py, and Et3P) and Me3N,BH2X (X = Cl, Br, and I) are shown to form hydrogen-bonded complexes with OH (MeOH, PhOH, and p-F·C6H4·OH) in carbon tetrachloride solution. These complexes appear to be formed via OH ⋯ BH3 and OH ⋯ BH2 interactions and are readily detected by the appearance of a low-frequency i.r. OH stretch. Formation of similar
Reactions of trimethylamine–iodoborane(1/1) and related complexes in liquid ammonia
作者:Peter J. Bratt、Michael P. Brown、Kenneth R. Seddon
DOI:10.1039/dt9760000353
日期:——
trimethylamine–halogenoborane(1/1) in the series NMe3·BHyXz(y+z= 3; X = Cl, Br, or I) to react with liquidammonia is NMe3·BH2I which slowly gives diamminedihydroboron iodide[BH2(NH3)2]I. The reaction rate is greatly increased in the presence of a range of halide salts. On reaction with Na[CN], NMe3·BH2I gives mainly NH3·B(CN)H2 and with Na[NH2] mainly polymeric [BH2(NH2)]n. The complexes NMe3·BBr2H, NMe3·BHI2