Synthesis and Structures of Stable Pt(II) and (IV) Alkylidenes: Evidence for π-Bonding and Relativistic Stabilization

30 November 2018, Version 1
This content is a preprint and has not undergone peer review at the time of posting.


Isolable cationic Pt(II) and Pt(IV) alkylidenes, proposed intermediates in catalytic organic transformations, are reported. The bonding in these species was probed by experimental, structural, spectroscopic, electrochemical and computational methods, providing direct evidence for π-bonding, the oft-theorized relativistic stabilisation of these species, and the influence of oxidation state.


Metal carbenes
relativistic effects
catalytic intermediates


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