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Synchrotron radiation study of chloromethane clusters: Effects of polarizability and dipole moment on core level chemical shifts

In English

Författare

Summary, in English

Free neutral chloromethane clusters have been produced by adiabatic expansion and investigated by means of photoelectron spectroscopy. By studying the differences between the cluster binding energy shifts at the Cl 2p and C 1s thresholds we have shown that antiparallel packing is the dominant local structure of the clusters. This geometry is induced by the polar character of the constituent molecules, and it accords with the structures of chloromethane solids and dimers. Furthermore, results obtained from the analysis of the outer valence levels of the clusters support the suggested local structure. The roles of the polarizability and of the dipole moment of the constituent molecules in the cluster binding energy shifts are discussed in comparison with a recent investigation of bromomethane clusters. (C) 2007 American Institute of Physics.

Publiceringsår

2007

Språk

Engelska

Publikation/Tidskrift/Serie

Journal of Chemical Physics

Volym

127

Issue

2

Dokumenttyp

Artikel i tidskrift

Förlag

American Institute of Physics (AIP)

Ämne

  • Physical Sciences
  • Natural Sciences

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0021-9606