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  • 1
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 4 (1970), S. 579-586 
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A detailed study of the performance of the Morse, the Hulburt--Hirschfelder and the Lippincott potential energy functions has been carried out by comparing them with the Rydberg-Klein-Rees potential energy curves for a number of electronic states of various diatomic molecules. Further, by employing the above potential energy functions, the radial Schrödinger equation has been solved for the vibrational energy levels, G(v), and the vibrational wave functions, ψv. The latter have been employed to determine the rotational constants, Bv, for the individual vibrational energy levels. Then the molecular constants, we, wexe, weye, Be, αe and γe for the various electronic states, have been computed by using the values of G(v) and Bv. A comparison of the molecular constants derived in this manner with the experimental ones reveals better agreement, in most cases, than that reported by previous workers.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On a calculé des facteurs de Franck-Condon pour les molécules N2, O2, NO et CO pour les transitions aux états ionisés observés. Les calculs ont été basés sur les courbes de potentiel de Rydberg-Klein-Rees (RKR) des états électroniques en question. On a observé que pour certaines transitions, les facteurs de Franck-Condon basés sur les courbes de potentiel RKR diffèrent d'une façon appréciable de ceux obtenus de la fonction de potentiel de Morse. L'effet d'une substitution isotopique sur les probabilités de transition est aussi significatif dans plusieurs cas.
    Abstract: Franck-Condon-Faktoren wurden für die Moleküle N2, O2, NO und CO für Übergänge zu den beobachteten ionisierten Zuständen mit den Rydberg-Klein-Rees (RKR) Potential-kurven der entsprechenden elektronischen Zustände berechnet. Es wurde bemerkt dass für gewisse Übergänge die Franck-Condon-Faktoren der RKR Potentialkurven merkbar von den der Morse-Potentialfunktion abweichen. Der effekt isotopischer Substitution auf den Übergangswahrscheinlichkeiten ist auch in vielen Fallen ganz bedeutsam.
    Notes: Franck-Condon factors are presented for the normal and stable isotope-labelled N2, O2, NO and CO molecules for transitions to the observed ionized states by using the Rydberg-Klein-Rees (RKR) potential energy curves of the various electronic states involved. It has been observed that for some transitions, the Franck-Condon factors based on the RKR potential energy curves differ appreciably from those based on the Morse potential function. The effect of isotopic substitution on the transition probabilities is also quite significant in a number of cases.
    Additional Material: 5 Tab.
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  • 3
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    International Journal of Quantum Chemistry 20 (1981), S. 419-427 
    ISSN: 0020-7608
    Keywords: Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Structure-activity relationships have been discussed for inhibition of [14C] erythromycin binding to Escherichia coli ribosomes by leucomycin and its acyl derivatives in the light of the Fujita-Ban de novo model. The group contributions of various substituents show that acylation at position 4″ of the mycarose moiety of leucomycin increases affinity for binding of leucomycins to ribosomes. It is also indicated that unlike at position 2' in mycaminose region a free hydroxyl at position 9 of the lactone ring is not important for binding to ribosomes.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
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