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Isomerizations of a Pt₄ cluster revealed by spatiotemporal microscopic analysis

Author:
Imaoka, Takane, Toyonaga, Tetsuya, Morita, Mari, Haruta, Naoki, Yamamoto, Kimihisa
Source:
Chemical communications 2019 v.55 no.33 pp. 4753-4756
ISSN:
1364-548X
Subject:
isomerization, isomers, kinetics, platinum, transmission electron microscopes
Abstract:
We now report the first direct observation of the fluxional nature in which the four-atomic platinum cluster (Pt₄) randomly walks through several isomers. Time-lapse analysis by a Cs-corrected transmission electron microscope allowed us to acquire the atomic coordinates at a sub-angstrom space resolution and 0.2 s time resolution for each cluster isomer. The analysis revealed that the isomerization follows a simple first-order kinetic model.
Agid:
6385126