摘要：

In previous chapters, the three-centre two-electron hydrogen bridge has been shown to be a common structural feature of all the neutral boron hydrides and of many of their derivatives, and a source of many of their characteristic reactions, particularly those in which the bridge is cleaved by nucleophiles (Lewis bases). Similar electron deficient hydrogen bridges linking atoms of many other elements than boron are now known, and it is the object of the present chapter to indicate briefly in what types of compound they occur. These types are too numerous to allow also detailed discussion of their reactions, many of which can, however, be inferred by analogy with those of the boron hydrides described in Chapter 4.

展开