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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of inclusion phenomena and macrocyclic chemistry 11 (1991), S. 389-396 
    ISSN: 1573-1111
    Keywords: Clathrate ; quinol/SO2 clathrate ; Raman spectroscopy ; pre-resonance Raman effect
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract A pre-resonance Raman study of the yellow β-quinol/SO2 clathrate has been carried out using 609.8, 586.8, 514.5, 488.0 and 457.9 run excitation. Pre-resonance enhancement is observed for the guest vl (Al) band at 1147 cm−1 and the host band at 1257 cm−1. These observations are consistent with a charge transfer interaction arising from the LUMO of S02 (S 3pz) and the HOMO of quinol, which consists mainly of the ring π electrons.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Journal of inclusion phenomena and macrocyclic chemistry 27 (1997), S. 179-190 
    ISSN: 1573-1111
    Keywords: IR spectroscopy ; Raman spectroscopy ; 13C-MAS NMR spectroscopy ; Dianin's compound ; clathrates ; carboxylic acids ; alcohols
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Infrared, Raman and solid state 13C-NMR spectra have been recorded for a range of clathrates of Dianin's compound containing straight chain aliphatic carboxylic acids (formic - octanoic) as guests. The IR, Raman and NMR spectra can be satisfactorily interpreted in terms of dimer (formic and acetic) and monomer (propionic - octanoic) occupation of the cavities. The clathrates containing straight chain alcohol guests (methanol - octanol) have also been prepared to aid in the interpretation of the NMR data.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of inclusion phenomena and macrocyclic chemistry 31 (1998), S. 99-107 
    ISSN: 1573-1111
    Keywords: IR spectroscopy ; Raman spectroscopy ; 13C MAS NMR spectroscopy ; clathrates ; inclusion compounds ; carboxylic acids ; urea ; thiourea
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Infrared, Raman and solid state13C NMR spectra have been recorded for arange of inclusion compounds of urea containingstraight chain aliphatic carboxylic acids(butyric – decanoic) as guests. Inclusioncompounds are not formed with formic, acetic andpropionic acids. Thiourea does not forminclusion compounds with any of the C1 to C10acids. The vibrational and NMR data support theconclusion that the acids are present ashydrogen bonded dimers in the channels of thehost. The alkyl chain 13C chemical shiftvalues are very different from those of acidguests in the cavities formed in Dianin'scompound. These suggest that the alkyl chainsare present in the all-trans conformation,although weak bands observed in the spectrum ofthe decanoic acid inclusion compound lend somesupport to suggestions based on MM calculationsthat other conformations might be present.
    Type of Medium: Electronic Resource
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