Formic acid, 1-methylethyl ester

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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 evaluated as indicated in comments:
HL - Edward P. Hunter and Sharon G. Lias

Data compiled as indicated in comments:
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to C4H8O2+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
Proton affinity (review)811.3kJ/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity780.3kJ/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
10.44 ± 0.05PEBenoit, Harrison, et al., 1977LLK
10.44PEBenoit and Harrison, 1977Vertical value; LLK

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
CH3O+13.5 ± 0.1?EIVanRaalte and Harrison, 1963RDSH
CH3O2+10.38 ± 0.05CH2=CHCH3EIBenoit, Harrison, et al., 1977LLK
CH3O2+10.9 ± 0.1?EIVanRaalte and Harrison, 1963RDSH
C2H5O+11.5 ± 0.1?EIVanRaalte and Harrison, 1963RDSH

Gas Chromatography

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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 by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Kovats' RI, non-polar column, isothermal

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Column type Active phase Temperature (C) I Reference Comment
PackedSqualane80.518.Fernández-Sánchez, García-Domínguez, et al., 1987H2
PackedApiezon L120.527.Bogoslovsky, Anvaer, et al., 1978Celite 545
PackedApiezon L160.529.Bogoslovsky, Anvaer, et al., 1978Celite 545
PackedApiezon L70.532.Bogoslovsky, Anvaer, et al., 1978 
PackedSE-30150.552.Ashes and Haken, 1974Celaton (62-72 mesh); Column length: 3.7 m
PackedSqualane50.516.Mira and Sanchez, 1970Chromosorb G
PackedSE-30150.528.Germaine and Haken, 1969Celite 560; Column length: 3.7 m
PackedApiezon L130.525.Wehrli and Kováts, 1959Celite; Column length: 2.25 m
PackedApiezon L70.532.Wehrli and Kováts, 1959Celite; Column length: 2.25 m

Kovats' RI, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillarySE-30552.Chretien and Dubois, 1978Program: not specified

Normal alkane RI, non-polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillaryMethyl Silicone552.Du and Feng, 2008Program: not specified
CapillarySE-30573.Vinogradov, 2004Program: not specified
CapillaryPolydimethyl siloxane562.Spanier, Shahidi, et al., 2001Program: not specified
CapillarySPB-1559.Flanagan, Streete, et al., 199760. m/0.53 mm/5. μm, He; Program: 40C(6min) => 5C/min => 80C => 10C/min => 200C
CapillarySPB-1559.Strete, Ruprah, et al., 199260. m/0.53 mm/5.0 μm, Helium; Program: 40 0C (6 min) 5 0C/min -> 80 0C 10 0C/min -> 200 0C
CapillarySPB-1567.Strete, Ruprah, et al., 199260. m/0.53 mm/5.0 μm, Helium; Program: not specified
CapillaryOV-1567.Ramsey and Flanagan, 1982Program: not specified

Normal alkane RI, polar column, custom temperature program

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Column type Active phase I Reference Comment
CapillaryHP-Innowax838.Narain, Galvao, et al., 200730. m/0.25 mm/0.25 μm, He; Program: 30C(5min) => 7C/min => 100C(5min) => 1C/min => 130C => 10C/min => 195C(45min)
CapillaryHP-Innowax840.Narain, Galvao, et al., 200730. m/0.25 mm/0.25 μm, He; Program: 30C(5min) => 7C/min => 100C(5min) => 1C/min => 130C => 10C/min => 195C(45min)
CapillaryCarbowax 20M838.Vinogradov, 2004Program: not specified
CapillaryCarbowax 400, Carbowax 20M, Carbowax 1540, Carbowax 4000, Superox 06, PEG 20M, etc.851.Waggott and Davies, 1984Hydrogen; Column length: 50. m; Column diameter: 0.32 mm; Program: not specified
CapillaryCarbowax 20M883.Ramsey and Flanagan, 1982Program: not specified

References

Go To: Top, Gas phase ion energetics data, Gas Chromatography, Notes

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

Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G., Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update, J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018 . [all data]

Benoit, Harrison, et al., 1977
Benoit, F.M.; Harrison, A.G.; Lossing, F.P., Hydrogen migrations in mass spectrometry III-Energetics of formation of [R'CO2H2]+ in the mass spectra of R'CO2R, Org. Mass Spectrom., 1977, 12, 78. [all data]

Benoit and Harrison, 1977
Benoit, F.M.; Harrison, A.G., Predictive value of proton affinity. Ionization energy correlations involving oxygenated molecules, J. Am. Chem. Soc., 1977, 99, 3980. [all data]

VanRaalte and Harrison, 1963
VanRaalte, D.; Harrison, A.G., Ionization and dissociation of formate esters by electron impact, Can. J. Chem., 1963, 41, 2054. [all data]

Fernández-Sánchez, García-Domínguez, et al., 1987
Fernández-Sánchez, E.; García-Domínguez, J.A.; García-Muñoz, J.; Menéndez, V.; Molera, M.J., Prediction of gas chromatographic retention indices on binary mixed stationary phases, An. Quim., 1987, 83, 56-58. [all data]

Bogoslovsky, Anvaer, et al., 1978
Bogoslovsky, Yu.N.; Anvaer, B.I.; Vigdergauz, M.S., Chromatographic constants in gas chromatography (in Russian), Standards Publ. House, Moscow, 1978, 192. [all data]

Ashes and Haken, 1974
Ashes, J.R.; Haken, J.K., Gas chromatography of homologous esters. VI. Structure-retention increments of aliphatic esters, J. Chromatogr., 1974, 101, 1, 103-123, https://doi.org/10.1016/S0021-9673(01)94737-5 . [all data]

Mira and Sanchez, 1970
Mira, J.M.; Sanchez, L.G., Polarity of the Gas Chromatographic Stationary Phases and Retention Indices of Aliphatic Esters, Ketones and Alcohols, Anal. Chim. Acta., 1970, 50, 2, 315-321, https://doi.org/10.1016/0003-2670(70)80071-X . [all data]

Germaine and Haken, 1969
Germaine, R.W.; Haken, J.K., Gas chromatography of homologous esters. Part 1. Simple aliphatic esters, J. Chromatogr., 1969, 43, 33-42, https://doi.org/10.1016/S0021-9673(00)99162-3 . [all data]

Wehrli and Kováts, 1959
Wehrli, A.; Kováts, E., Gas-chromatographische Charakterisierung ogranischer Verbindungen. Teil 3: Berechnung der Retentionsindices aliphatischer, alicyclischer und aromatischer Verbindungen, Helv. Chim. Acta, 1959, 7, 7, 2709-2736, https://doi.org/10.1002/hlca.19590420745 . [all data]

Chretien and Dubois, 1978
Chretien, J.R.; Dubois, J-E., Topological Analysis: A Technique for the Physico-Chemical Exploitation of Retention Data in Gas-Liquid Chromatography, J. Chromatogr., 1978, 158, 43-56, https://doi.org/10.1016/S0021-9673(00)89954-9 . [all data]

Du and Feng, 2008
Du, X.; Feng, C., Correlativity research between topological dyeing index and gas chromatography retention index of fatty esters, J. Petrochem. Univ. (Chinese), 2008, 21, 1, 16-20. [all data]

Vinogradov, 2004
Vinogradov, B.A., Production, composition, properties and application of essential oils, 2004, retrieved from http://viness.narod.ru. [all data]

Spanier, Shahidi, et al., 2001
Spanier, A.M.; Shahidi, F.; Par; iment, T.H.; Mussinan, C., Food Flavors and Chemistry. Advances of the New Millenium, Royal Soc. Chem., 2001, 666. [all data]

Flanagan, Streete, et al., 1997
Flanagan, R.J.; Streete, P.J.; Ramsey, J.D., Volatile Substance Abuse, UNODC Technical Series, No 5, United Nations, Office on Drugs and Crime, Vienna International Centre, PO Box 500, A-1400 Vienna, Austria, 1997, 56, retrieved from http://www.odccp.org/pdf/technicalseries1997-01-011.pdf. [all data]

Strete, Ruprah, et al., 1992
Strete, P.J.; Ruprah, M.; Ramsey, J.D.; Flanagan, R.J., Detection and identification of volatile substances by headspace capillary gas chromatography to aid the diagnosis of acute poisoning, Analyst, 1992, 117, 7, 1111-1127, https://doi.org/10.1039/an9921701111 . [all data]

Ramsey and Flanagan, 1982
Ramsey, J.D.; Flanagan, R.J., Detection and Identification of Volatile Organic Compounds in Blood by Headspace Gas Chromatography as an Aid to the Diagnosis of Solvent Abuse, J. Chromatogr., 1982, 240, 2, 423-444, https://doi.org/10.1016/S0021-9673(00)99622-5 . [all data]

Narain, Galvao, et al., 2007
Narain, N.; Galvao, M.S.; Madruga, M.S., Volatile compounds captured through purge and trap technique in caja-umbu (Spondias sp.) fruits during maturation, Food Chem., 2007, 102, 3, 726-731, https://doi.org/10.1016/j.foodchem.2006.06.003 . [all data]

Waggott and Davies, 1984
Waggott, A.; Davies, I.W., Identification of organic pollutants using linear temperature programmed retention indices (LTPRIs) - Part II, 1984, retrieved from http://dwi.defra.gov.uk/research/completed-research/reports/dwi0383.pdf. [all data]


Notes

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