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dc.creatorKisiel, Zbigniewen_US
dc.creatorKraśnicki, Adamen_US
dc.date.accessioned2011-07-12T17:39:45Z
dc.date.available2011-07-12T17:39:45Z
dc.date.issued2011en_US
dc.identifier2011-MH-06en_US
dc.identifier.urihttp://hdl.handle.net/1811/49681
dc.descriptionAuthor Institution: Institute of Physics, Polish Academy of Sciences, Al. Lotnikow; 32/46, 02-668 Warszawa, Polanden_US
dc.description.abstractPrevious determinations of the electric dipole moment of acrylonitrile, while in agreement on the total dipole moment, showed an appreciable difference in the value of the smaller $\mu_b$ component., {\bf 22}, 516 (1954)}$^,$, {\bf 40a}, 998 (1985)} The value of this component is important for intensity considerations in the THz spectrum of this molecule, which is dominated by $b$-type transitions. {\bf 258}, 26 (2009).} \vspace{0.2cm} We decided to update the dipole moment determination of acrylonitrile, and also of propionitrile (ethyl cyanide) by making Stark measurements in supersonic expansion. We used the Stark electrode arrangement developed in our laboratory and the program QSTARK for fitting Stark measurements on resolved nuclear quadrupole hyperfine structure. {\bf 325}, 523 (2000).} The results for acrylonitrile show a further, significant difference in the value of $\mu_b$, while those for propionitrile, while more precise, are essentially consistent with previous values., {\bf 29a}, 1345 (1974)} The evidence from $ab~initio$ calculations and from relative intensity measurements supporting the current dipole moment determinations is presented.en_US
dc.language.isoenen_US
dc.publisherOhio State Universityen_US
dc.titleIMPROVED DIPOLE MOMENTS FOR ACRYLONITRILE AND PROPIONITRILEen_US
dc.typeArticleen_US
dc.typeImageen_US
dc.typePresentationen_US


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