Characterization of asymmetry transients in rotational coherence spectroscopy

Joireman, Paul W.; Connell, Leslie L.; Ohline, Shane M.; Felker, Peter M.
March 1992
Journal of Chemical Physics;3/15/1992, Vol. 96 Issue 6, p4118
Academic Journal
The characteristics and origin of a new type of rotational coherence effect—asymmetry transients—are considered. Asymmetry transients are of two types, which we call C-type and A-type, respectively. C-type features are spaced by time intervals equal to 1/(4C). A-type features are spaced by time intervals equal to 1/(4A). Both types of transients can provide information on rotational constants that is not available from other types of rotational coherence effects. We show that the C-type transients arise from coherences between rotational eigenstates of the form Jτ and (J+2)τ-2 (in the Jτ notation) and that the A-type ones arise from coherences between eigenstates Jτ and (J+2)τ+2. The fact that such coherences produce asymmetry transients is shown to be a consequence of the limiting behavior of asymmetric top energy levels at high values of J. Experimental results in which asymmetry transients are present are reported for jet-cooled perylene, tryptamine (D conformer), 1-naphthol–water, and fluorene–benzene.


Related Articles

  • Bright small molecular white organic light-emitting devices with two emission zones. Kim, C.-H.; Shinar, J. // Applied Physics Letters;3/25/2002, Vol. 80 Issue 12, p2201 

    Bright multilayer organic light-emitting devices (OLEDs) containing both perylene-doped [4,4'-bis(9-carbazolyl) biphenyl (CBP)] and [4-(dicyano-methylene)-2-methyl-6-(p-dimethyl aminostyryl)-4H-pyran (DCM1)-doped tris-(8-hydroxy quinoline)Al (Alq[sub 3])] are described. The electroluminescence...

  • Nonlinear line narrowing of excited state resonances in perylene doped poly(methylmethacrylate) using multiply enhanced nonparametric spectroscopy. Hurst, Gregory B.; Wright, John C. // Journal of Chemical Physics;8/1/1991, Vol. 95 Issue 3, p1479 

    Line narrowing of perylene vibronic transitions in poly(methylmethacrylate) (PMMA) samples has been demonstrated using multiply enhanced nonparametric spectroscopy. Three lasers are used to generate a four wave mixing signal that is resonantly enhanced by three simultaneous perylene resonances...

  • The electrostatic interactions in van der Waals complexes involving aromatic molecules. Price, S. L.; Stone, A. J. // Journal of Chemical Physics;3/1/1987, Vol. 86 Issue 5, p2859 

    The minima in the electrostatic energy, for accessible orientations, have been located for the s-tetrazine and benzene dimers and the 1:1 complexes of s-tetrazine with hydrogen chloride, water, acetylene, and benzene, and of benzene with acetylene, anthracene, and perylene. The minima give...

  • Resonances in the K shell excitation spectra of benzene and pyridine: Gas phase, solid, and chemisorbed states. Horsley, J. A.; Stöhr, J.; Hitchcock, A. P.; Newbury, D. C.; Johnson, A. L.; Sette, F. // Journal of Chemical Physics;12/15/1985, Vol. 83 Issue 12, p6099 

    K shell excitation spectra of the aromatic molecules benzene and pyridine in the gas phase are compared to those for the solids (ices) and for monolayers chemisorbed on Pt(111). The gas phase and solid spectra are essentially identical and even the spectra for the chemisorbed molecules exhibit...

  • Electronic structure of benzene adsorbed on single-domain Si(001)-(2x1): A combined experimental.... Gokhale, S.; Trischberger, P. // Journal of Chemical Physics;4/1/1998, Vol. 108 Issue 13, p5554 

    Investigates the benzene adsorption on a single-domain Si(001)-(2x1) surface. Use of thermal desorption spectroscopy; Discovery of well-defined polarization and azimuthal dependencies in angle-resolved photoemission spectra of saturated benzene layers; Presentation of two structure models.

  • Higher analytic derivatives. IV. Anharmonic effects in the benzene spectrum. Maslen, Paul E.; Handy, Nicholas C.; Amos, Roger D.; Jayatilaka, Dylan // Journal of Chemical Physics;9/15/1992, Vol. 97 Issue 6, p4233 

    This is the fourth in a series of papers on the ab initio calculation of the third and fourth derivatives of the energy of a molecule. In this paper we examine anharmonic effects in the infrared and Raman spectra of benzene. The following spectroscopic properties have been calculated; ab initio...

  • Rotationally resolved vibronic spectra of the van der Waals modes of benzene–Ar and benzene–Kr complexes. Riedle, E.; Sussmann, R.; Weber, Th.; Neusser, H. J. // Journal of Chemical Physics;1/15/1996, Vol. 104 Issue 3, p865 

    Rotationally resolved vibronic spectra of eight van der Waals bands built onto the 610 transition of the bare molecule are reported for the complexes C6H6·Ar, C6D6·Ar, and C6H6·84Kr. The rotational structure of most of the bands is identified as that of a perpendicular transition with...

  • Solvent effects on the absorption spectrum of the perylene-SbCl complex. Midyana, G.; Makitra, R.; Palchikova, E. // Russian Journal of General Chemistry;Feb2012, Vol. 82 Issue 2, p300 

    The perylene-SbCl complex is characterized by two absorption maxima, whose positions depend on the nature of the solvent. The maximum in the region of 19×10 cm corresponds to the perylene cationic form and depends on the medium polarity, while another, in the region of 14×10 cm,...

  • Polarized Fluorescence of Complex Molecules Being Excited by Low‐Energy Electrons. Kukhto, A.V.; Mit'kovets, A.I.; Ritchik, D.V. // Journal of Applied Spectroscopy;Jul/Aug2004, Vol. 71 Issue 4, p512 

    Polarization of the fluorescence of the vapors of anthracene, perylene, 1,4‐di(2,5‐phenyloxazolyl)benzene (POPOP), and 2‐phenyl‐5‐(4‐biphenylyl)oxazole (BPO) upon excitation by a beam of monokinetic electrons with energy varying in the 5–300‐eV...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics