New measurements of the a3 Σ+u state of K2 and improved analysis of long-range dispersion and exchange interactions between two K atoms

Zhao, Guoxing; Zemke, Warren T.; Kim, J. T.; Ji, Bing; Wang, H.; Bahns, J. T.; Stwalley, W. C.; Li, Li; Lyyra, A. M.; Amiot, C.
November 1996
Journal of Chemical Physics;11/8/1996, Vol. 105 Issue 18, p7976
Academic Journal
Resolved fluorescence from the K2 43 Σ+g state to the a3 Σ+u state has been measured by the perturbation-facilitated optical–optical double resonance (PFOODR) technique. Data have been fit to an improved set of molecular constants for the a3 Σ+u state. In particular, the new Te value for this state has been determined as 4197.935±0.047 cm-1, nearly 1.8 cm-1 higher than previously reported. By combining the new results for the a3 Σ+u state and the recent results for the ground X1 Σ+g state [J. Chem. Phys. 103, 3350 (1995)], we report in this paper an improved analysis of long-range dispersion and exchange interactions between two K atoms and of the X1 Σ+g and a3 Σ+u state dissociation energies De of 4450.674±0.072 cm-1 and 252.74±0.12 cm-1, respectively. © 1996 American Institute of Physics.


Related Articles

  • Secondary national standard for the units of the dispersion parameters of nanometer suspensions. Karpov, O.; Balakhanov, D.; Lesnikov, E.; Dankin, D. // Measurement Techniques;May2011, Vol. 54 Issue 2, p109 

    The structure of the secondary standard VET 163-1-2010 created at VNIIFTRI for the units of the dispersion parameters of suspensions is described. The secondary standard is designed to reproduce the units of particle size in suspensions over the range 0.01-5 μm and of the number density of...

  • Structure and Properties of Potassium Titanyl Phosphate Single Crystals with 7 and 11 at. % Nb. Alekseeva, O. A.; Sorokina, N. I.; Verin, I. A.; Losevskaya, T. Yu.; Voronkova, V. I.; Yanovskiı, V. K.; Simonov, V. I. // Crystallography Reports;Mar2003, Vol. 48 Issue 2, p205 

    This study is a continuation of research into the atomic structure and physical properties of niobium-doped potassium titanyl phosphate crystals, KTiOPO[sub 4] (KTP : Nb). Crystals containing 7 and 11 at. % of niobium were grown and studied. With an increase in niobium content, the number of...

  • Electron scattering from laser excited atoms. Teubner, P. J. O. // AIP Conference Proceedings;2000, Vol. 500 Issue 1, p256 

    This paper reviews advances in the area of electron scattering from laser excited atoms since the XX International Conference on the Physics of Electronic and Atomic Collisions (ICPEAC) in Vienna. It discusses superelastic scattering of electrons from potassium and from rubidium. The excitation...

  • The 530 nm system of KRb observed in a pulsed molecular beam: New electric quadrupole transitions (1 [sup 1]Δ-X [sup 1]Σ[sup +]). Lee, Yonghoon; Yun, Changhun; Yoon, Youngjee; Kim, Taeshick; Kim, Bongsoo // Journal of Chemical Physics;10/22/2001, Vol. 115 Issue 16, p7413 

    New electronic transitions of KRb are identified near 530 nm by resonance enhanced two photon ionization study in a supersonic molecular beam. The rotational structure shows O, P, Q, R, and S branches. From the high resolution rotational analysis and comparison with the spectra of other alkali...

  • All strung out. Jones, Nicola // New Scientist;09/02/2000, Vol. 167 Issue 2254, p23 

    Focuses on the creation of a nearly one-dimensional crystal inside a carbon nanotube. Ability to glean more accurate information from such crystals, since most of its atoms are on the surface; How the crystals were created using potassium chloride; Study of the crystals with a transmission...

  • Deslocamento miscível de cátions provenientes da vinhaça em colunas de solo. de Matos, Antonio T.; de A. Gariglio, Helder A.; Lo Monaco, Paola A. V. // Revista Brasileira de Engenharia Agricola e Ambiental - Agriambi;Jul2013, Vol. 17 Issue 7, p743 

    In order to evaluate the retardation factor, dispersion coefficient and diffusion-effluent curves of calcium, magnesium and potassium present in the vinasse, a laboratory experiment was conducted in soil columns of typical Distrophic Red Latosol (LVd), typical Eutroferric Red Latosol (LVef) and...

  • Role of fluctuations in a snug-fit mechanism of KcsA channel selectivity. Asthagiri, D.; Pratt, Lawrence R.; Paulaitis, Michael E. // Journal of Chemical Physics;7/14/2006, Vol. 125 Issue 2, p024701 

    The thermodynamic exclusion of Na+ relative to K+ in potassium channels is examined by calculating the distribution of binding energies for Na+ and K+ in a model of the selectivity filter of the KcsA potassium channel. These distributions are observed to take a surprisingly simple form: Gaussian...

  • Propagation of envelope soliton of ionization waves. Ohe, Kazuyuki; Hashimoto, Masashi // Journal of Applied Physics;10/15/1985, Vol. 58 Issue 8, p2975 

    Examines simplified basic equations describing ionization waves excited in the positive columns of glow discharges. Calculation of the nonlinear dispersion relation with the finite wave amplitude in the basic equations; Systems of basic equations describing the ionization wave excited in the...

  • Dependence of impact ionization coefficients on electric-field profile and injection mode approximations. Luquet, H.; Gouskov, L.; Pérotin, M.; Karim, M.; Rmou, A.; Mottet, S. // Journal of Applied Physics;7/1/1993, Vol. 74 Issue 1, p635 

    Studies the dependence of impact ionization coefficients on electric-field profile and injection mode approximations. Methods for determining ionization coefficients; Dispersion of the published values of ionization coefficients in GaAlSb compounds; Significance of the study of impact ionization.


Read the Article


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

Try another library?
Sign out of this library

Other Topics