Role of Insect Sex Pheromone in Mating Behavior. : II. An Aspect of Sex Pheromone as a Volatile Material

Hirooka, Yoshitoshi; Suwani, Masana

doi:10.1303/aez.13.38

Cited by 11 publications

(3 citation statements)

References 3 publications

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“…14 Compared to our predictions based on eqns. ( 6) and (7), i.e. 0.368 Pa and 79.25 kJ mol Ϫ1 for Z7-12 : Ac, and 0.0368 Pa and 89.94 kJ mol Ϫ1 for Z9-14 : Ac, the agreement is quite impressive, perhaps with the exception of the vapour pressure values for Z9-14 : Ac where the deviation reaches about 24.8%.…”

Section: Resultsmentioning

confidence: 83%

“…For heats of vaporization [eqn. (7)], the standard error of estimate amounts to 0.62 (Z-isomers) and 0.59 (E-isomers) kJ mol Ϫ1 . The mean absolute deviation of the 295 compounds used in the correlation was 0.51%, with 38 compounds exhibiting deviations 1-1.8% and the remainder <1%.…”

Section: Resultsmentioning

confidence: 99%

“…It is now generally recognized within the pheromone chemistry community that vapour pressure can be used both to correct electrophysiological activities of pheromone analogues when comparing congeners with different chain lengths and/or functional groups, 6 and to optimize existing (mostly empirical) applications of synthetic pheromone blends in insect pest control strategies. 7 If the vapour pressure is to have predictive value, the quantitative effect of temperature on this property must also be known. Assuming ideal gas behaviour in the low vapour pressure region, the vapour pressure can be recalculated from one temperature (T 1 ) to another (T 2 ) in a narrow temperature range by using a known value of ∆ vap H and an integrated form of the Clausius-Clapeyron equation, ln (p sat1 /p sat2 ) = (∆ vap H/R)[(1/T 2 ) Ϫ (1/T 1 )], where R is the gas constant.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Additivity of vaporization properties in pheromone-like homologous series

Koutek¹,

Hoskovec²,

Streinz³

et al. 1998

J. Chem. Soc., Perkin Trans. 2

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A simple method of estimating vaporization properties of normal alkyl and (Z)-and (E)-alkenyl homologous series of pheromone-like acetates, alcohols and aldehydes with 10 to 18 carbon atoms in the chain is described. The properties hold for the (subcooled) liquid state and include vapour pressure (p sat ) and heat of vaporization ( vap H) at 25 ЊC. An empirical QSPR model for ln p sat and vap H is developed in terms of three easy-to-calculate structural descriptors related to the number of carbon atoms in the chain (n), the functional group characteristics (I) and the double bond position ( ). The model, covering the property ranges of 2 × 10 ؊4 -2 × 10 1 Pa and 60-120 kJ mol ؊1 , explains over 99.8% of the variance in the experimental data sets containing 295 compounds, with standard errors in ln p sat and vap H of about 0.085 ln unit and 0.62 kJ mol ؊1 , respectively. It is recommended as a useful tool in designing pheromones and in fate-modelling applications in the absence of experimental data.

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Section: Resultsmentioning

confidence: 83%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Additivity of vaporization properties in pheromone-like homologous series

Koutek¹,

Hoskovec²,

Streinz³

et al. 1998

J. Chem. Soc., Perkin Trans. 2

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Determination of release rates of pheromone dispensers by air sampling with C-18 bonded silica

Pop¹,

Arn²,

Buser³

1993

J Chem Ecol

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Release rates of pheromones from commercial dispensers for mating disruption inLobesia botrana andCydia pomonella have been measured by sampling an air stream with C-18 bonded silica (Sep-Pak cartridges) followed by extraction and gas chromatographic analysis. The flow chamber is made from inexpensive materials that can be replaced when contaminated. The results correspond with those obtained by gravimetry; the method supplies additional information on the composition of the airborne material.

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Determination of the vapor pressures of moth sex pheromone components by a gas chromatographic method

Olsson

Jönsson²,

Thelin

et al. 1983

J Chem Ecol

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The vapor pressures of decyl acetate, five decenyl acetate isomers, (Z)-7-dodecenyl acetate, and (Z)-9-tetradecenyl acetate have been determined at three to six temperatures in the interval 25-45 °C by a gas Chromatographic method suitable for accurate measurements of the low vapor pressures of moth sex pheromone components at biologically relevant temperatures. The vapor pressure values at 30.5 °C are 3.80 Pa for decyl acetate, 4.08-5.40 Pa for the decenyl acetate isomers, 0.562 Pa for (Z)-7-dodecenyl acetate, and 0.094 Pa for (Z)-9-tetradecenyl acetate. The vapor pressures of the decenyl acetates show a small but significant dependence on the double bond position. Four of the compounds in this study, 10∶Ac,Z5-10∶Ac,Z7-12∶Ac, andZ9-14∶Ac have recently been identified as sex pheromone components of the turnip moth,Agrotis segetum. Large differences between the mole percentages of the component as found in liquid extracts of female abdominal tips and the corresponding mole percentages in the vapor phase are predicted.

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Role of Insect Sex Pheromone in Mating Behavior. : II. An Aspect of Sex Pheromone as a Volatile Material

Cited by 11 publications

References 3 publications

Additivity of vaporization properties in pheromone-like homologous series

Additivity of vaporization properties in pheromone-like homologous series

Determination of release rates of pheromone dispensers by air sampling with C-18 bonded silica

Determination of the vapor pressures of moth sex pheromone components by a gas chromatographic method

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