According to R.H. Crabtree, Metal Dihydrogen and sigma-Bond Complexes
is described as `the definitive account of twentieth-century work in
the area of sigma complexation'. It covers not only Kubas' discovery of
dihydrogen coordination and the study of its structure and general
properties but also discusses both the theoretical beliefs and
experimental results of bonding and activation of dihydrogen on metal
centers and the coordination and activation of C-H, B-H, X-H, and X-Y
bonds, giving an overview of `one of the hottest areas in chemistry'.