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  • (Z)-11-hentriacontene  (2)
  • Ethylene glycol  (2)
  • Springer  (4)
  • Nature Publishing Group
  • Oxford University Press
  • Springer Nature
  • 1975-1979  (2)
  • 1970-1974  (2)
  • 1960-1964
  • 1935-1939
Sammlung
Verlag/Herausgeber
  • Springer  (4)
  • Nature Publishing Group
  • Oxford University Press
  • Springer Nature
Erscheinungszeitraum
  • 1975-1979  (2)
  • 1970-1974  (2)
  • 1960-1964
  • 1935-1939
Jahr
  • 1
    ISSN: 1432-2234
    Schlagwort(e): Ethylene glycol ; conformation of ∼ ; bonding ; Isometric group of glycol
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract The isometric group of a semirigid model of the ethylene glycol molecule with 3 internal degrees of freedom is derived. Results of extensiveab initio computation of the electronic potential function with a Gaussian lobe basis set are presented from which two differentr e conformations are predicted. Both feature one single internal H bond in which one of the lone electron pairs of the acceptor O atom is involved. Symmetry sets of isometricr e-conformations and of transition points of the potential function are discussed. Infrared matrix spectra of glycol and 2 deuterated modifications are presented and discussed on the basis of two internally bonded conformations predicted byab initio calculations.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    ISSN: 1432-2234
    Schlagwort(e): Ethylene glycol ; conformation of ∼ ; bonding ; Isometric group of glycol
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Abstract The isometric group of a semirigid model of the ethylene glycol molecule with 3 internal degrees of freedom is derived. Results of extensiveab initio computation of the electronic potential function with a Gaussian lobe basis set are presented from which two differentr e conformations are predicted. Both feature one single internal H bond in which one of the lone electron pairs of the acceptor O atom is involved. Symmetry sets of isometricr e-conformations and of transition points of the potential function are discussed. Infrared matrix spectra of glycol and 2 deuterated modifications are presented and discussed on the basis of two internally bonded conformations predicted byab initio calculations.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 3
    ISSN: 1573-1561
    Schlagwort(e): Fannia femoralis (Stein) ; pheromone ; mating stimulant pheromone ; (Z)-11-hentriacontene ; cuticular lipid ; fly
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract The cuticular lipids of male and femaleFannia femoralis were similar for recently emerged insects but soon began to develop chromatographic patterns characteristic of each sex. Mature females contained more C31 and C33 monoolefin in the cuticular lipid than males. Also, the double bonds in the monoolefins of the female lipid were situated predominantly at the eleventh and thirteenth carbons, while most of those from the males were centrally located in the molecule or at the ninth carbon. The female C31 monoolefin stimulated copulation by the males, but more mating activity occurred when the saturated hydrocarbons present in the female cuticular lipids were added. The synthetic monoolefin most active as a mating stimulant pheromone was (Z)-11-hentriacontene, but the addition of female alkanes or of syntheticn-alkanes to (Z)-11-hentriacontene increased the activity of the synthetic pheromone.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 4
    ISSN: 1573-1561
    Schlagwort(e): Fannia pusio (Wiedemann) ; pheromone ; mating stimulant pheromone ; (Z)-11-hentriacontene ; cuticular lipid ; fly
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Chromatograms of the cuticular lipids washed from newly emerged male and femaleFannia pusio were nearly identical. By the time the flies were 1 day old, the chromatographic profiles for the sexes were different. Mature females contained more C31- and C33-hydrocarbons than the males. The double bonds of the female monoolefins were mostly at the eleventh and thirteenth carbons, but those of the males were predominantly at the ninth carbon. Most active in stimulating copulation by males were the unbranched monoolefins with 31 and 33 carbons from the females. When they were synthesized and tested, the most active compound was (Z)-11-hentriacontene.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
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