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'Infrared Spectrum' in keywords
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1999 (2)
1997 (1)
1987 (1)
1Author    P. Paplewski, H. Bürger, H. BeckersRequires cookie*
 Title    High Resolution Infrared Detection of 0=PF in the Gas Phase  
 Abstract    Dedicated to Prof. Dr. Reinhard Schmutzler on the occasion of his 65 th birthday Short-lived phosphenous fluoride, 0=PF, has been made by flash pyrolysis of F 2 POPF 2 in Ar at 1200°C and detected by gas phase IR spectroscopy. The v x band, v 0 = 1297.5372 cm -1 , has been studied with a resolution of 8 x 10 -3 cm -1 , and about 1500 transitions have been assigned. These were fitted using a Watson-type Hamiltonian, cr = 1.5 x 10 -3 cm -1 , to excited state parameters up to quartic centrifugal distortion constants. The v> 2 band was located at 819.58 cm -1 . An extended set of ground state parameters was obtained by combining recently measured microwave transitions with ground state combination differences formed from v x transitions. The experimental results are in perfect agreement with the matrix IR spectra, mw measurements and ab initio calculations but disagree with a recently claimed low resolution detection of OPF in the gas phase. 
  Reference    Z. Naturforsch. 54a, 507—512 (1999); received June 18 1999 
  Published    1999 
  Keywords    High Resolution, Infrared Spectrum, Pyrolysis, Phosphenous Fluoride 
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 TEI-XML for    default:Reihe_A/54/ZNA-1999-54a-0507.pdf 
 Identifier    ZNA-1999-54a-0507 
 Volume    54 
2Author    S. Alanko, R. Paso, R. AnttilaRequires cookie*
 Title    A Diode Laser-Grating Study of the v2 + v5 Band of C2D2  
 Abstract    The region o f the v2 + v5 band o f deuterated acetylene C 2D 2 around 2305 cm -1 has been studied using a diode laser-grating spectrometer. The grating spectrum covered the whole range o f the band. The structure of the Q branch as well as the Q branches of the hot bands v2 + 2v5 <-v5 and v2 + v4 + v5 «-v4 together with some special parts have been investigated with the diode laser, too. Molecular constants for the v2 + v5 band with small improvements in the ground state constants are presented. The hot bands were analyzed by taking the /-resonances into account. 
  Reference    Z. Naturforsch. 42a, 1247—1252 (1987); received July 11 1987 
  Published    1987 
  Keywords    D iode laser, Infrared spectrum, Rotation-vibration spectrum, Deuteroacetylene, /-resonance 
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 TEI-XML for    default:Reihe_A/42/ZNA-1987-42a-1247.pdf 
 Identifier    ZNA-1987-42a-1247 
 Volume    42 
3Author    J. Breidung, H. Bürger, M. Senzlobei^, W. ThielRequires cookie*
 Title    High Resolution FTIR Spectrum of Chlorofluoroethyne  
 Abstract    , FCCC1, below 1000 cm -1 . Analysis of the v v v v v s , 2v 4 , v A + v 5 and 2i/ 5 Bands, and ab initio Calculations High resolution infrared spectra of FCCC1 have been measured and analyzed by polynomial methods. In the region below 350 cm -1 , the analysis is straightforward and yields parameters for the V4 = 1 and = 1 states. Between 350 and 800 cm -1 there are strong anharmonic interactions in the 2v 5 /u 4 + u^lu^llu^ tetrad which have been unravelled with the use of a model that employs ab initio interaction constants. Observed and theoretically predicted wavenumbers are in excellent agreement for all bands studied. 
  Reference    Z. Naturforsch. 54a, 236—244 (1999); received December 2 1998 
  Published    1999 
  Keywords    Infrared Spectrum, High Resolution, Alkyne, Fermi Resonance, ab initio Calculations 
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 TEI-XML for    default:Reihe_A/54/ZNA-1999-54a-0236.pdf 
 Identifier    ZNA-1999-54a-0236 
 Volume    54 
4Author    P. V. Monje3, E. J. BaranbRequires cookie*
 Title    On the Formation of Whewellite in the Cactaceae Species Opuntia microdasys  
  Reference    Z. Naturforsch. 52c, 267—269 (1997); received January 20 1997 
  Published    1997 
  Keywords    Cactaceae, Opuntia microdasys, Whewellite, Isolation, Electron Microscopy, Infrared Spectrum 
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 TEI-XML for    default:Reihe_C/52/ZNC-1997-52c-0267_n.pdf 
 Identifier    ZNC-1997-52c-0267_n 
 Volume    52