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金属对分子H_2的活化反应,在应用科学及理论科学中均为重要的化学反应。H—H键是一强健(键能为431240.4J/mol)。因此H_2分子对不饱和物及其它化合物的加成反应,必须通过金属中心(M)的催化活化,形成碱性中间物M,即金属一分子H_2络合物(以下简称为分子H_2络合物),随后H—H键断裂形成金属氢化物MH。这一过程在催化加氢反应中起着重要作用。它可按两种方式进行:
The activation of the molecule H 2 by the metal is an important chemical reaction in the applied and theoretical sciences. H-H bond is a strong (bond energy 431240.4J / mol). Therefore, H 2 molecules of unsaturated compounds and other compounds of the addition reaction must be catalyzed by the metal center (M) to form a basic intermediate M, that is, a metal H_2 complex (hereinafter referred to as molecular H_2 complex ), Followed by breaking of the H-H bond to form the metal hydride MH. This process plays an important role in catalytic hydrogenation. It can be done in two ways: