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

Publiceringsår: 2007
Språk: Engelska
Publikation/Tidskrift/Serie: Journal of Chemical Physics
Volym: 127
Nummer: 2
Dokumenttyp: Artikel i tidskrift
Förlag: American Institute of Physics


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.


  • Physical Sciences
  • Natural Sciences


  • ISSN: 0021-9606

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