V. Defelice et al., 3-COORDINATE PT(0) ETA(2)-COMPLEXES - ELECTROPHILIC HYDROGEN ATTACK THROUGH OXIDATIVE-ADDITION OF PROTIC ACIDS, Inorganica Chimica Acta, 219(1-2), 1994, pp. 169-178
Different types of products can be obtained by addition of protic acid
s HX (X=Cl, BF4) to Pt(0) species of general formula [Pt(ol)(N-N)] (ol
=olefin; N-N=N,N-chelate) according to the features of the two coordin
ated ligands. The typical attainment of four-coordinate hydrocarbyl de
rivatives by insertion of the alkene into the Pt-H bond is compared wi
th the recently reported isolation of stable five-coordinate hydrides.
The nature of the final product is also related to the coordinating a
bility of the X group. A general mechanism for the addition process is
proposed.