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
显示了类型为L,BH 3(L = Me 3 N,Et 3 N,Py和Et 3 P)和Me 3 N,BH 2 X(X = Cl,Br和I)的硼配位化合物在四氯化碳溶液中与OH(MeOH,PhOH和p -F·C 6 H 4 ·OH)形成氢键结合的配合物。这些配合物似乎是通过OH⋯BH 3和OH⋯BH 2相互作用形成的,很容易通过低频ir OH延伸的出现来检测。与更广泛卤化的胺硼烷Me 3 N,BHX 2形成类似的络合物(X = Cl,Br和I)和Me 3 N,BX 3(X = F,Cl和Br)无法观察到。环噻唑烷(RNH·BH 2)3在溶液中表现出自缔合作用,这归因于相关的NH⋯BH 2相互作用。