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  • 1
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 112 (2000), S. 5523-5526 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Pure rotational transitions of the free radical FO in its X 2Π3/2 ground electronic state have been detected by millimeter-wave spectroscopy. Four transitions, which are all magnetic dipole in character, were measured in the frequency region from 219 to 408 GHz. The radical was produced by a well-known efficient reaction between ozone and fluorine atoms. The high sensitivity available in the submillimeter-wave region and a very efficient production method were essential for the detection of rotational transitions in this radical, which many other people have attempted in the past. No electric dipole transitions have been detected in this experiment. The precision of parameters associated with the rotational motion of FO has been improved considerably by fitting these lines together with previous data. Moreover, the parity-dependent nuclear spin rotation term CI′ has been determined for the first time. The r0 and re structures of FO have been revised accordingly. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 110 (1999), S. 7273-7286 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The fine-structure transition 2Π1/2←2Π3/2 of the free radical FO has been detected by far-infrared laser magnetic resonance. All the observed transitions are magnetic dipole in character. The spin–orbit constant A0 has been determined experimentally; its value of −196.108 686(50) cm−1 is consistent with previous estimates. The analysis of a set of 290 transitions leads to the determination of a number of molecular parameters including rotational, centrifugal distortion, spin–orbit, lambda-doubling, magnetic hyperfine, and Zeeman terms. All four magnetic hyperfine structure constants a, bF, c, d for the 19F nucleus have been determined and are discussed in terms of the expectation values of the appropriate operators over the electronic wave function. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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