Physics
Scientific paper
Jun 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011mss..confemh01w&link_type=abstract
"International Symposium On Molecular Spectroscopy, 66th Meeting, Held 20-24 June, 2011 at Ohio State University. http://molspec
Physics
Microwave
Scientific paper
A Balle-Flygare FT-MW spectrometer coupled to a laser ablation source has been used to measure the pure rotational spectra of H4C2\cdotsAgCl and H4C2\cdotsCuCl. Both molecules are generated via laser ablation (532 nm) of a metal rod in the presence of CCl4, C2H4 and argon and are stabilized by supersonic expansion. Rotational constants ({A}0, {B}0, {C}0) and the centrifugal distortion constant, {D}J, have been measured for six isotopologues of H4C2\cdotsAgCl and five isotopologues of H4C2\cdotsCuCl with substitutions at the metal, chlorine and carbon atoms in each case. The spectrum of each molecule is consistent with a {C}2v structure in which the metal atom interacts with the {π}-orbital on ethene. The measured rotational constants allow determination of the length of the bond between the metal and chlorine atoms, {RMCl}, and the distance between the metal atom and the centre of the ethene double bond, {RMEt}. Nuclear quadrupole coupling constants have been determined for the chlorine atom in each molecule and also for copper in H4C2\cdotsCuCl.
Legon A. C.
Mikhailov Alexander. V.
Stephens Scott L.
Walker N. R.
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