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  • High-resolution infrared studies of perdeutero-spiropentane, C₅D₈

    Creator:
    Erickson, Blake Alexander, Ju, X., Nibler, Joesph W., Beaudry, C. M., and Blake, T. A.
    Abstract:
    Perdeutero-spiropentane (C₅D₈) has been synthesized and infrared and Raman spectra are reported for the first time. Wavenumber assignments are made for most of the fundamental vibrational modes. Gas phase infrared spectra were recorded at a resolution (0.002 cm⁻¹) sufficient to resolve individual rovibrational lines and show evidence of strong Coriolis...
    Resource Type:
    Article
    Full Text:
    Perdeutero-Spiropentane, C5D8 B.A. Erickson, X. Ju, J.W. Nibler ** , C.M. Beaudry, and T.A. Blake a

  • High Resolution Spectroscopy of Bicyclo[1.1.1]pentane

    Creator:
    Martin, Matthew A.
    Abstract:
    The strained carbon ring, bicyclo[1.1.1]pentane, was synthesized by a reaction between 1-(phenylsulfanyl)bicyclo[1.1.1]pentane, prepared from propellane, and Raney nickel. Infrared spectra were recorded at a resolution of 0.0015 cm-1, a resolution significantly better than previous measurements, 0.06 cm-1. A single fundamental band was analyzed to determine the ground state and excited...
    Resource Type:
    Honors College Thesis
    Full Text:
    Abstract Approved: ______________________________________________________ Joseph Nibler The

  • Examination of low-lying rovibrational states of D₃[subscript h] oblate top molecules using high resolution FTIR and coherent anti-Stokes Raman spectroscopies

    Creator:
    Kirkpatrick, Robynne
    Abstract:
    Interesting rovibrational characteristics of two D_(3h) oblate symmetric top molecules were studied. Hamiltonian models for the fine rovibrational level structure of [1.1.1]propellane (propellane) were obtained for many low-lying modes. Ground state parameters (GSP) that are not exclusively K^(2n) dependent were obtained. Initially, the GSP were used in conjunction with density...
    Resource Type:
    Dissertation
    Full Text:
    : __________________________________________________________________ Joseph W. Nibler Interesting rovibrational characteristics of two D3h oblate symmetric

  • Molecular Structures of Gases by Electron-Diffraction: Improved Methods and Study of 1,1,3,3-tetramethylcyclobutane and spiropentane molecules

    Creator:
    Sandwisch, Jason W., Nibler, Joseph, and Hedberg, Kenneth
    Abstract:
    The gas phase electron-diffraction (GED) technique has been the primary method used to expand our knowledge and understanding of gas-phase molecular structures. The technique yields interatomic distances and bond angles that are of use in both theoretical and experimental studies. The GED structural parameters are thermal averages over all vibrational...
    Resource Type:
    Poster
    Full Text:
    -tetramethylcyclobutane and spiropentane molecules Jason W. Sandwisch , Dr. Joseph Nibler, and Dr. Kenneth Hedberg

  • High resolution spectroscopic studies of ³²S¹⁶O₃ and ³⁴S¹⁶O₃

    Creator:
    Barber, Jeffrey
    Abstract:
    The two sulfur isotopomers of sulfur trioxide, ³²S¹⁶O₃ and ³⁴S¹⁶O₃, have been studied via high resolution infrared and Coherent anti-Stokes Raman (CARS) spectroscopy. The v₁ symmetric SO stretching Q-branches observed by the latter are quite different, being especially complex for ³²S¹⁶O₃ Understanding this band structure required analysis of infrared-active hot...
    Resource Type:
    Dissertation
    Full Text:
    Spectroscopic Studies of 32S'6O3 and 34S'6O3. Abstract approved: Joseph W. Nibler The two sulfur isotopomers

  • High resolution spectroscopy of sulfur trioxide and carbon suboxide

    Creator:
    Masiello, Tony
    Abstract:
    High resolution spectroscopy was used to study the properties of two simple polyatomic molecules, sulfur trioxide, SO₃, and carbon suboxide, C₃O₂. The fundamental modes and several hot bands of the ¹⁸O isotopic fonns of SO₃ (³²S¹⁸O₃ and ³⁴S¹⁸O₃) have been investigated using both infrared spectroscopy and coherent anti-Stokes Raman scattering...
    Resource Type:
    Dissertation
    Full Text:
    Sulfur Trioxide and Carbon Suboxide. Abstract Joseph W. Nibler High resolution spectroscopy was used to

  • High resolution ionization-detected simulated Raman spectroscopy

    Creator:
    Crew, Marshall D.
    Abstract:
    A new experimental apparatus was built at Oregon State University to perform high resolution stimulated Raman spectroscopy in a pulsed molecular jet at state densities of the order of 10¹¹ cm⁻³. The technique uses a stimulated Raman step to first populate a vibrational/rotational level and then a resonantly enhanced multiphoton...
    Resource Type:
    Dissertation
    Full Text:
    -Detected Stimulated Raman Spectrosconv. Abstract approved: Joseph W. Nibler A new experimental apparatus

  • Applications of nonlinear raman spectroscopy

    Creator:
    Melin, Stéphanie
    Abstract:
    Two nonlinear optical experiments are presented in which the third-order electronic susceptibility of molecules is used to generate Raman signals. The first one uses a single 532 nm beam from a Nd:YAG laser to produce Stimulated Raman Scattering in benzene and deuterated benzene. With a simple experimental set-up, stimulated emission...
    Resource Type:
    Masters Thesis
    Full Text:
    witness this accomplishment. I must also thank Dr Nibler, Joe, for being a wonderful advisor. His way of

  • Theoretical study of beryllium borohydride Be(BH₄)₂

    Creator:
    Alghamdi, Maha D.
    Abstract:
    Ab initio calculations using the B3LYP and CCSD(T) methods were employed in this work to explore the most stable structure of the intriguing compound Be(BH₄)₂, for which as many as seven different structures have been proposed in the literature. Use of the B3LYP density functional method with several large basis...
    Resource Type:
    Masters Thesis
    Full Text:
    Beryllium Borohydride Be(BH4)2 Abstract approved: _______________________________________ Joseph W

  • Deep ultraviolet solid-state laser development

    Creator:
    Dutton, David A. (David Adam)
    Abstract:
    There is a new possibility of generating deep ultraviolet laser radiation from a solid-state source. With recent advances in material development, a new nonlinear optical crystal provides a greater damage threshold than current materials making higher conversion efficiencies possible. This thesis examines the possibility of using this crystal to generate...
    Resource Type:
    Masters Thesis
    Full Text:
    fundamental understanding and use of the new NLO material. Thank you to Joseph G. LaChapelle, CEO of a