Dihydrogen bondとは 意味・読み方・使い方

In chemistry, a dihydrogen bond is a kind of hydrogen bond, an interaction between a metal hydride bond and an OH or NH group or another proton donor. The first example of this phenomenon is credited to Brown and Heseltine. They observed intense absorptions in the IR bands at 3300 and 3210 cm^-1 for a solution of (CH₃)₂NHBH₃. The higher energy band is assigned to a normal N-H vibration whereas the lower energy band is assigned to the same bond, which is interacting with the B-H. Upon dilution of the solution, the 3300 cm^-1 band increased in intensity and the 3210 cm^-1 band decreased, indicative of intermolecular association.