Work

PtZnH5–, A σ-Aromatic Cluster

Year: 2014

Type: article

Abstract: 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.

Source: The Journal of Physical Chemistry Letters

DOI: 10.1021/jz500322n

Authors: Xinxing Zhang, Gaoxiang Liu, Gerd Ganteför, Kit H. Bowen, Anastassia N. Alexandrova

Institutions: Johns Hopkins University, California NanoSystems Institute, University of California, Los Angeles

Language: English

Topic: Advanced Chemical Physics Studies

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Alfred P. Sloan Foundation, Air Force Office of Scientific Research

OpenAlex ID: W1996249939

FWCI: 4.644

Cites: 61

Cited by: 55

Related to: 10