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

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Synchrotron radiation study of chloromethane clusters: Effects of polarizability and dipole moment on core level chemical shifts. / Rosso, Aldana; Lindblad, A; Lundwall, M; Rander, T; Svensson, S; Tchaplyguine, Maxim; Öhrwall, Gunnar; Bjorneholm, O.

I: Journal of Chemical Physics, Vol. 127, Nr. 2, 2007.

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T1 - Synchrotron radiation study of chloromethane clusters: Effects of polarizability and dipole moment on core level chemical shifts

AU - Rosso, Aldana

AU - Lindblad, A

AU - Lundwall, M

AU - Rander, T

AU - Svensson, S

AU - Tchaplyguine, Maxim

AU - Öhrwall, Gunnar

AU - Bjorneholm, O.

PY - 2007

Y1 - 2007

N2 - 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.

AB - 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.

U2 - 10.1063/1.2752164

DO - 10.1063/1.2752164

M3 - Article

VL - 127

JO - Journal of Chemical Physics

T2 - Journal of Chemical Physics

JF - Journal of Chemical Physics

SN - 0021-9606

IS - 2

ER -