1,3-Pentadiyne

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Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director

Quantity Value Units Method Reference Comment
Tboil328.7KN/AWeast and Grasselli, 1989BS
Tboil328.KN/APrevost, 1929Uncertainty assigned by TRC = 4. K; TRC

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:


Gas phase ion energetics data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
LL - Sharon G. Lias and Joel F. Liebman

View reactions leading to C5H4+ (ion structure unspecified)

Ionization energy determinations

IE (eV) Method Reference Comment
9.50 ± 0.02PEMaier, 1981LLK
9.4PIPECOForster, Maier, et al., 1981LLK
9.51PEDannacher, Heilbronner, et al., 1979LLK
9.51PEBrogli, Heilbronner, et al., 1973LLK
9.5 ± 0.1PEBieri, Burger, et al., 1977Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
C3H2+12.3C2H2PIDannacher, Heilbronner, et al., 1979LLK
C5H2+13.7H2EIDannacher, Heilbronner, et al., 1979LLK
C5H3+11.66 ± 0.02HPIKompe, Peel, et al., 1993LL
C5H3+11.6 ± 0.2HEIDannacher, Heilbronner, et al., 1979LLK

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Prevost, 1929
Prevost, C., Ann. Chim., 1929, 10, 113. [all data]

Maier, 1981
Maier, J.P., Structure and decay of gaseous organic radical cations studied by their radiative decay, exemplified by the 1,3-pentadiyne cation, Angew. Chem. Int. Ed. Engl., 1981, 20, 638. [all data]

Forster, Maier, et al., 1981
Forster, P.; Maier, J.P.; Thommen, F., Radiative and non-radiative decay rates of alkyl substituted diacetylene cations at selected energies within their 2A states determined via photoelectron-photoion coincidence measurements, Chem. Phys., 1981, 59, 85. [all data]

Dannacher, Heilbronner, et al., 1979
Dannacher, J.; Heilbronner, E.; Stadelmann, J.-P.; Vogt, J., 225. Fragmentation of energy selected butadiyne and 1,3-pentadiyne radical cations, Helv. Chim. Acta, 1979, 62, 2186. [all data]

Brogli, Heilbronner, et al., 1973
Brogli, F.; Heilbronner, E.; Hornung, V.; Kloster-Jensen, E., 230. Die photoelektronen-spektren methyl-substituierter Acetylene, Helv. Chim. Acta, 1973, 56, 2171. [all data]

Bieri, Burger, et al., 1977
Bieri, G.; Burger, F.; Heilbronner, E.; Maier, J.P., Valence ionization enrgies of hydrocarbons, Helv. Chim. Acta, 1977, 60, 2213. [all data]

Kompe, Peel, et al., 1993
Kompe, B.; Peel, J.B.; Traeger, J.C., A theoretical and experimental study of the structures and stabilities of the [C5H3]+ cation, Org. Mass Spectrom., 1993, 28, 1253. [all data]


Notes

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