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The first compound in which a hydride- and an alkylidene-ligand bridge two Pt-atoms is present in the complex cation 2, which is formed on reaction of the complex 1 with styrene. 2 was characterized NMR spectroscopically and by an X-ray structure analysis. the PtPt distance of 2.735(1) Å indicates that there is bonding interaction between the two metal atoms.
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Minghetti et al. (1985) studied this question.
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