Skip to main content
Open Access Publications from the University of California

PtZnH5-, A σ-Aromatic cluster

  • Author(s): Zhang, X
  • Liu, G
  • Ganteför, G
  • Bowen, KH
  • Alexandrova, AN
  • et al.

Published Web Location

We report a joint photoelectron spectroscopic and theoretical study of the PtZnH5- cluster anion. This cluster exhibited an unprecedented planar pentagonal coordination for Pt and an unusual stability and high intensity in the mass spectrum. Both are due to the σ-aromaticity found in the H5-cycle supported by the 5d orbitals on the Pt atom. σ-Aromaticity in all-H systems has been predicted in the past but never found in experimentally observed species. Besides fundamental importance, mixed transition-metal hydrides can be found as intermediates in catalytic processes, and thus, the unexpected stability facilitated by σ-aromaticity can be appreciated also in practical applications. © 2014 American Chemical Society.

Many UC-authored scholarly publications are freely available on this site because of the UC Academic Senate's Open Access Policy. Let us know how this access is important for you.

Main Content
Current View