Hydrogen chloride

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Gas phase thermochemistry data

Go To: Top, Phase change data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, References, Notes

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

Quantity Value Units Method Reference Comment
Δfgas-22.06 ± 0.024kcal/molReviewCox, Wagman, et al., 1984CODATA Review value
Δfgas-22.06kcal/molReviewChase, 1998Data last reviewed in September, 1964
Quantity Value Units Method Reference Comment
gas,1 bar44.671 ± 0.001cal/mol*KReviewCox, Wagman, et al., 1984CODATA Review value
gas,1 bar44.670cal/mol*KReviewChase, 1998Data last reviewed in September, 1964

Gas Phase Heat Capacity (Shomate Equation)

Cp° = A + B*t + C*t2 + D*t3 + E/t2
H° − H°298.15= A*t + B*t2/2 + C*t3/3 + D*t4/4 − E/t + F − H
S° = A*ln(t) + B*t + C*t2/2 + D*t3/3 − E/(2*t2) + G
    Cp = heat capacity (cal/mol*K)
    H° = standard enthalpy (kcal/mol)
    S° = standard entropy (cal/mol*K)
    t = temperature (K) / 1000.

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View table.

Temperature (K) 298. to 1200.1200. to 6000.
A 7.6778027.628880
B -3.2165520.765579
C 4.748691-0.129431
D -1.6381310.008586
E -0.011872-0.821827
F -24.28791-25.81621
G 54.6574152.16941
H -22.06310-22.06310
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in September, 1964 Data last reviewed in September, 1964

Phase change data

Go To: Top, Gas phase thermochemistry data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, References, Notes

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:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
AC - William E. Acree, Jr., James S. Chickos

Quantity Value Units Method Reference Comment
Tfus161.15KN/ABeckmann and Waentig, 1910Uncertainty assigned by TRC = 2. K; TRC
Quantity Value Units Method Reference Comment
Ptriple0.13620atmN/AHenderson, Lewis, et al., 1986Uncertainty assigned by TRC = 0.00006 atm; TRC
Quantity Value Units Method Reference Comment
Tc324.68KN/AHenderson, Lewis, et al., 1986Uncertainty assigned by TRC = 0.03 K; TRC
Quantity Value Units Method Reference Comment
Pc81.48atmN/AHenderson, Lewis, et al., 1986Uncertainty assigned by TRC = 0.0813 atm; VP measured up to 219 K and Pc determined from fitted Wagner equation; TRC

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
3.87188.CGiauque and Wiebe, 1928AC

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
122.3 to 188.33.60194535.172-39.847Stull, 1947Coefficents calculated by NIST from author's data.
188.3 to 309.44.56818868.3581.754Stull, 1947Coefficents calculated by NIST from author's data.

Enthalpy of sublimation

ΔsubH (kcal/mol) Temperature (K) Reference Comment
4.71127.Ser and Larher, 1990Based on data from 121. to 133. K.; AC
4.68142.Ser and Larher, 1990Based on data from 134. to 150. K.; AC

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

Go To: Top, Gas phase thermochemistry data, Phase change data, Ion clustering data, IR Spectrum, References, Notes

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
L - Sharon G. Lias

Data compiled as indicated in comments:
B - John E. Bartmess
LBLHLM - Sharon G. Lias, John E. Bartmess, Joel F. Liebman, John L. Holmes, Rhoda D. Levin, and W. Gary Mallard
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 HCl+ (ion structure unspecified)

Quantity Value Units Method Reference Comment
IE (evaluated)12.744 ± 0.009eVN/AN/AL
Quantity Value Units Method Reference Comment
Proton affinity (review)133.1kcal/molN/AHunter and Lias, 1998HL
Quantity Value Units Method Reference Comment
Gas basicity126.7kcal/molN/AHunter and Lias, 1998HL

Ionization energy determinations

IE (eV) Method Reference Comment
12.790PEWang, Dillon, et al., 1984LBLHLM
12.752 ± 0.006PEPennetreau, Natalis, et al., 1983LBLHLM
12.748PEVon Niessen, Asbrink, et al., 1982LBLHLM
12.747 ± 0.002PENatalis, Pennetreau, et al., 1982LBLHLM
12.75PEKimura, Katsumata, et al., 1981LLK
12.72 ± 0.03PITiedemann, Anderson, et al., 1979LLK
12.748EVALHuber and Herzberg, 1979LLK
12.748 ± 0.005PEWeiss, Lawrence, et al., 1970RDSH
12.74 ± 0.01PELempka, Passmore, et al., 1968RDSH
12.742 ± 0.010PINicholson, 1965RDSH
12.74 ± 0.01PIWatanabe, 1957RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
Cl+17.34 ± 0.01HPIKrauss, Walker, et al., 1968RDSH
H+14.5Cl-EIFox, 1957RDSH

De-protonation reactions

Chlorine anion + Hydrogen cation = Hydrogen chloride

By formula: Cl- + H+ = HCl

Quantity Value Units Method Reference Comment
Δr333.40kcal/molN/AMartin and Hepburn, 1998gas phase; Given: ΔHacid(0K)=116288.7±0.6 cm-1, or 332.486±0.002 kcal/mol; B
Δr333.6 ± 2.1kcal/molG+TSFujio, McIver, et al., 1981gas phase; value altered from reference due to change in acidity scale; B
Δr329.10kcal/molN/ACheck, Faust, et al., 2001gas phase; FeCC-(q); ; ΔS(EA)=5.0; B
Quantity Value Units Method Reference Comment
Δr328.10 ± 0.10kcal/molH-TSMartin and Hepburn, 1998gas phase; Given: ΔHacid(0K)=116288.7±0.6 cm-1, or 332.486±0.002 kcal/mol; B
Δr328.3 ± 2.0kcal/molIMREFujio, McIver, et al., 1981gas phase; value altered from reference due to change in acidity scale; B
Δr323.70kcal/molN/ACheck, Faust, et al., 2001gas phase; FeCC-(q); ; ΔS(EA)=5.0; B

Ion clustering data

Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, IR Spectrum, References, Notes

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:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. Searches may be limited to ion clustering reactions. A general reaction search form is also available.

Clustering reactions

Bromine anion + Hydrogen chloride = (Bromine anion • Hydrogen chloride)

By formula: Br- + HCl = (Br- • HCl)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr19.6 ± 2.0kcal/molTDEqCaldwell and Kebarle, 1985gas phase; B,M
Quantity Value Units Method Reference Comment
Δr22.0cal/mol*KPHPMSCaldwell and Kebarle, 1985gas phase; switching reaction(Br-)SO2; M
Quantity Value Units Method Reference Comment
Δr13.0 ± 2.6kcal/molTDEqCaldwell and Kebarle, 1985gas phase; B

(Bromine anion • Hydrogen chloride) + Hydrogen chloride = (Bromine anion • 2Hydrogen chloride)

By formula: (Br- • HCl) + HCl = (Br- • 2HCl)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr12.5kcal/molPHPMSCaldwell and Kebarle, 1985gas phase; switching reaction(Br-)SO2; M
Quantity Value Units Method Reference Comment
Δr18.4cal/mol*KPHPMSCaldwell and Kebarle, 1985gas phase; switching reaction(Br-)SO2; M

(Bromine anion • Sulfur dioxide) + Hydrogen chloride = (Bromine anion • Hydrogen chloride • Sulfur dioxide)

By formula: (Br- • O2S) + HCl = (Br- • HCl • O2S)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr22.4kcal/molPHPMSCaldwell and Kebarle, 1985gas phase; From thermochemical cycle,switching reaction(Br-)SO2; M
Quantity Value Units Method Reference Comment
Δr18.6cal/mol*KPHPMSCaldwell and Kebarle, 1985gas phase; From thermochemical cycle,switching reaction(Br-)SO2; M

Methyl cation + Hydrogen chloride = (Methyl cation • Hydrogen chloride)

By formula: CH3+ + HCl = (CH3+ • HCl)

Quantity Value Units Method Reference Comment
Δr51.7kcal/molPHPMSMcMahon, Heinis, et al., 1988gas phase; switching reaction(CH3+)N2, Entropy change calculated or estimated, uses MCA(N2) = 48.3 kcal/mol; Foster, Williamson, et al., 1974; M

C6H6+ + Hydrogen chloride = (C6H6+ • Hydrogen chloride)

By formula: C6H6+ + HCl = (C6H6+ • HCl)

Quantity Value Units Method Reference Comment
Δr7.3kcal/molPIWalters, Grover, et al., 1985gas phase; M

Chlorine anion + Hydrogen chloride = (Chlorine anion • Hydrogen chloride)

By formula: Cl- + HCl = (Cl- • HCl)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr29.6 ± 1.0kcal/molN/AMetz, Kitsopoulos, et al., 1988gas phase; Affinity: shift in apparent EA from lesser-solvated ion. Ignores any neutral-neutral bond.; B
Δr23.8 ± 2.0kcal/molTDEqCaldwell and Kebarle, 1985gas phase; B,M
Δr23.1 ± 2.0kcal/molIMRELarson and McMahon, 1984gas phase; B,M
Δr23.70 ± 0.20kcal/molTDAsYamdagni and Kebarle, 1974gas phase; B,M
Δr20.4kcal/molHPMSUpschulte, Evans, et al., 1986gas phase; From thermochemical cycle(Cl-)H2O/HCl, Entropy change calculated or estimated; Keesee and Castleman, 1980; M
Quantity Value Units Method Reference Comment
Δr22.3cal/mol*KPHPMSCaldwell and Kebarle, 1985gas phase; switching reaction(Cl-)SO2; M
Δr23.5cal/mol*KPHPMSYamdagni and Kebarle, 1974gas phase; M
Δr23.5cal/mol*KN/ALarson and McMahon, 1984, 2gas phase; switching reaction(Cl-)t-C4H9OH, Entropy change calculated or estimated; French, Ikuta, et al., 1982; M
Δr22.8cal/mol*KN/AUpschulte, Evans, et al., 1986gas phase; From thermochemical cycle(Cl-)H2O/HCl, Entropy change calculated or estimated; Keesee and Castleman, 1980; M
Quantity Value Units Method Reference Comment
Δr16.3 ± 2.0kcal/molIMRELarson and McMahon, 1987gas phase; K = 0.60 for HCl..Cl- + DCL <=> DCl..Cl- + HCl, anchored to Larson and McMahon, 1984, 32; B
Δr17.1 ± 2.6kcal/molTDEqCaldwell and Kebarle, 1985gas phase; B
Δr16.0 ± 2.0kcal/molIMRELarson and McMahon, 1984gas phase; B,M
Δr16.70 ± 0.30kcal/molTDAsYamdagni and Kebarle, 1974gas phase; B
Δr13.6kcal/molHPMSUpschulte, Evans, et al., 1986gas phase; From thermochemical cycle(Cl-)H2O/HCl, Entropy change calculated or estimated; Keesee and Castleman, 1980; M

(Chlorine anion • Hydrogen chloride) + Hydrogen chloride = (Chlorine anion • 2Hydrogen chloride)

By formula: (Cl- • HCl) + HCl = (Cl- • 2HCl)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr15.20 ± 0.20kcal/molTDAsYamdagni and Kebarle, 1974gas phase; B,M
Δr14.0kcal/molPHPMSCaldwell and Kebarle, 1985gas phase; switching reaction(Cl- HCl)SO2; M
Quantity Value Units Method Reference Comment
Δr20.4cal/mol*KPHPMSCaldwell and Kebarle, 1985gas phase; switching reaction(Cl- HCl)SO2; M
Δr24.4cal/mol*KPHPMSYamdagni and Kebarle, 1974gas phase; M
Quantity Value Units Method Reference Comment
Δr7.90 ± 0.20kcal/molTDAsYamdagni and Kebarle, 1974gas phase; B

(Chlorine anion • 2Hydrogen chloride) + Hydrogen chloride = (Chlorine anion • 3Hydrogen chloride)

By formula: (Cl- • 2HCl) + HCl = (Cl- • 3HCl)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr11.70 ± 0.30kcal/molTDAsYamdagni and Kebarle, 1974gas phase; B,M
Quantity Value Units Method Reference Comment
Δr23.4cal/mol*KPHPMSYamdagni and Kebarle, 1974gas phase; M
Quantity Value Units Method Reference Comment
Δr4.70 ± 0.30kcal/molTDAsYamdagni and Kebarle, 1974gas phase; B

(Chlorine anion • 3Hydrogen chloride) + Hydrogen chloride = (Chlorine anion • 4Hydrogen chloride)

By formula: (Cl- • 3HCl) + HCl = (Cl- • 4HCl)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr10.30 ± 0.70kcal/molTDAsYamdagni and Kebarle, 1974gas phase; B,M
Quantity Value Units Method Reference Comment
Δr26.7cal/mol*KPHPMSYamdagni and Kebarle, 1974gas phase; M
Quantity Value Units Method Reference Comment
Δr2.3 ± 1.0kcal/molTDAsYamdagni and Kebarle, 1974gas phase; B

(Chlorine anion • Hydrogen chloride • Water) + Hydrogen chloride = (Chlorine anion • 2Hydrogen chloride • Water)

By formula: (Cl- • HCl • H2O) + HCl = (Cl- • 2HCl • H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr12.3kcal/molHPMSUpschulte, Evans, et al., 1986gas phase; From thermochemical cycle,switching reaction(Cl- H2O) HCl, deuterated; Yamdagni and Kebarle, 1974; M
Quantity Value Units Method Reference Comment
Δr20.9cal/mol*KHPMSUpschulte, Evans, et al., 1986gas phase; From thermochemical cycle,switching reaction(Cl- H2O) HCl, deuterated; Yamdagni and Kebarle, 1974; M

(Chlorine anion • Water) + Hydrogen chloride = (Chlorine anion • Hydrogen chloride • Water)

By formula: (Cl- • H2O) + HCl = (Cl- • HCl • H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr16.0kcal/molHPMSUpschulte, Evans, et al., 1986gas phase; M
Quantity Value Units Method Reference Comment
Δr21.8cal/mol*KHPMSUpschulte, Evans, et al., 1986gas phase; M

(Chlorine anion • 2Water) + Hydrogen chloride = (Chlorine anion • Hydrogen chloride • 2Water)

By formula: (Cl- • 2H2O) + HCl = (Cl- • HCl • 2H2O)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr13.0kcal/molHPMSUpschulte, Evans, et al., 1986gas phase; From thermochemical cycle(Cl- 2H2O)H2O, deuterated; Keesee and Castleman, 1980; M
Quantity Value Units Method Reference Comment
Δr21.7cal/mol*KHPMSUpschulte, Evans, et al., 1986gas phase; From thermochemical cycle(Cl- 2H2O)H2O, deuterated; Keesee and Castleman, 1980; M

(Chlorine anion • Sulfur dioxide) + Hydrogen chloride = (Chlorine anion • Hydrogen chloride • Sulfur dioxide)

By formula: (Cl- • O2S) + HCl = (Cl- • HCl • O2S)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr13.9kcal/molPHPMSCaldwell and Kebarle, 1985gas phase; From thermochemical cycle; M
Quantity Value Units Method Reference Comment
Δr19.2cal/mol*KPHPMSCaldwell and Kebarle, 1985gas phase; From thermochemical cycle; M

Fluorine anion + Hydrogen chloride = (Fluorine anion • Hydrogen chloride)

By formula: F- + HCl = (F- • HCl)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr60. ± 2.kcal/molICRLarson and McMahon, 1985gas phase; bracketing; M

HCl+ + Hydrogen chloride = (HCl+ • Hydrogen chloride)

By formula: HCl+ + HCl = (HCl+ • HCl)

Quantity Value Units Method Reference Comment
Δr20.kcal/molPITiedemann, Anderson, et al., 1979gas phase; M

HO4S- + Hydrogen chloride = (HO4S- • Hydrogen chloride)

By formula: HO4S- + HCl = (HO4S- • HCl)

Quantity Value Units Method Reference Comment
Δr15.7 ± 1.0kcal/molTDEqBohringer, Fahey, et al., 1984gas phase; Relative to HOH..HSO4-, Bohringer, Fahey, et al., 1984; B,M
Quantity Value Units Method Reference Comment
Δr15.1cal/mol*KN/ABohringer, Fahey, et al., 1984gas phase; switching reaction(HSO4-)H2O, Entropy change calculated or estimated; M
Quantity Value Units Method Reference Comment
Δr11.2 ± 1.0kcal/molTDEqBohringer, Fahey, et al., 1984gas phase; Relative to HOH..HSO4-, Bohringer, Fahey, et al., 1984; B,M

Iodide + Hydrogen chloride = (Iodide • Hydrogen chloride)

By formula: I- + HCl = (I- • HCl)

Bond type: Hydrogen bond (negative ion to hydride)

Quantity Value Units Method Reference Comment
Δr14.8 ± 2.0kcal/molTDAsCaldwell and Kebarle, 1985gas phase; B,M
Δr14.2kcal/molHPMSKeesee, Lee, et al., 1980gas phase; M
Quantity Value Units Method Reference Comment
Δr20.0cal/mol*KPHPMSCaldwell and Kebarle, 1985gas phase; M
Δr22.7cal/mol*KHPMSKeesee, Lee, et al., 1980gas phase; M
Quantity Value Units Method Reference Comment
Δr8.8 ± 2.6kcal/molTDAsCaldwell and Kebarle, 1985gas phase; B

Sodium ion (1+) + Hydrogen chloride = (Sodium ion (1+) • Hydrogen chloride)

By formula: Na+ + HCl = (Na+ • HCl)

Quantity Value Units Method Reference Comment
Δr12.2kcal/molFAPerry, Rowe, et al., 1980gas phase; M
Quantity Value Units Method Reference Comment
Δr20.4cal/mol*KFAPerry, Rowe, et al., 1980gas phase; M

IR Spectrum

Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, Ion clustering data, References, Notes

Data compiled by: Coblentz Society, Inc.


References

Go To: Top, Gas phase thermochemistry data, Phase change data, Gas phase ion energetics data, Ion clustering data, IR Spectrum, Notes

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

Cox, Wagman, et al., 1984
Cox, J.D.; Wagman, D.D.; Medvedev, V.A., CODATA Key Values for Thermodynamics, Hemisphere Publishing Corp., New York, 1984, 1. [all data]

Chase, 1998
Chase, M.W., Jr., NIST-JANAF Themochemical Tables, Fourth Edition, J. Phys. Chem. Ref. Data, Monograph 9, 1998, 1-1951. [all data]

Beckmann and Waentig, 1910
Beckmann, E.; Waentig, P., Cryoscopic Measurements at Low Temperatures, Z. Anorg. Chem., 1910, 67, 17. [all data]

Henderson, Lewis, et al., 1986
Henderson, C.; Lewis, D.G.; Prichard, P.C.; Staveley, L.A.K.; Fonseca, I.M.A.; Lobo, L.Q., Some thermodynamic properties of hydrogen chloride and deuterium chloride, J. Chem. Thermodyn., 1986, 18, 1077. [all data]

Giauque and Wiebe, 1928
Giauque, W.F.; Wiebe, R., THE ENTROPY OF HYDROGEN CHLORIDE. HEAT CAPACITY FROM 16°K. TO BOILING POINT. HEAT OF VAPORIZATION. VAPOR PRESSURES OF SOLID AND LIQUID, J. Am. Chem. Soc., 1928, 50, 1, 101-122, https://doi.org/10.1021/ja01388a013 . [all data]

Stull, 1947
Stull, Daniel R., Vapor Pressure of Pure Substances. Organic and Inorganic Compounds, Ind. Eng. Chem., 1947, 39, 4, 517-540, https://doi.org/10.1021/ie50448a022 . [all data]

Ser and Larher, 1990
Ser, Frederic; Larher, Yves, Sublimation pressures of hydrogen chloride, The Journal of Chemical Thermodynamics, 1990, 22, 4, 407-412, https://doi.org/10.1016/0021-9614(90)90129-E . [all data]

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]

Wang, Dillon, et al., 1984
Wang, R.-G.; Dillon, M.A.; Spence, D., Electron spectroscopy of hydrogen chloride from 5 to 19 eV, J. Chem. Phys., 1984, 80, 63. [all data]

Pennetreau, Natalis, et al., 1983
Pennetreau, P.; Natalis, P.; Longton, L.; Collin, J.E., Ionization energies for the vibronic transitions from DCl X1Σ+(v" = 0) to DCl+ X2Π(v' = 0-18) and A2Σ+ (v' = 0-17) determined by photoelectron spectroscopy, J. Electron Spectrosc. Relat. Phenom., 1983, 28, 295. [all data]

Von Niessen, Asbrink, et al., 1982
Von Niessen, W.; Asbrink, L.; Bieri, G., 30.4 nm He(II) Photoelectron spectra of organic molecules. Part VI. Halogeno-compounds (C,H,X: X = Cl, Br, I), J. Electron Spectrosc. Relat. Phenom., 1982, 26, 173. [all data]

Natalis, Pennetreau, et al., 1982
Natalis, P.; Pennetreau, P.; Longton, L.; Collin, J.E., Ionisation energy values for the vibronic transitions from HCl X1Σ+ (v" = 0) to HCl+ ionic states X2Π (v' = 0-13) and A2Σ+ (v' = 0-12), determined by photoelectron spectroscopy, J. Electron Spectrosc. Relat. Phenom., 1982, 27, 267. [all data]

Kimura, Katsumata, et al., 1981
Kimura, K.; Katsumata, S.; Achiba, Y.; Yamazaki, T.; Iwata, S., Ionization energies, Ab initio assignments, and valence electronic structure for 200 molecules in Handbook of HeI Photoelectron Spectra of Fundamental Organic Compounds, Japan Scientific Soc. Press, Tokyo, 1981. [all data]

Tiedemann, Anderson, et al., 1979
Tiedemann, P.W.; Anderson, S.L.; Ceyer, S.T.; Hirooka, T.; Ng, C.Y.; Mahan, B.H.; Lee, Y.T., Proton affinities of hydrogen halides determined by the molecular beam photoionization method, J. Chem. Phys., 1979, 71, 605. [all data]

Huber and Herzberg, 1979
Huber, K.P.; Herzberg, G., Molecular Spectra and Molecular Structure. IV. Constants of Diatomic Molecules,, Van Nostrand Reinhold Co., 1979, ,1. [all data]

Weiss, Lawrence, et al., 1970
Weiss, M.J.; Lawrence, G.M.; Young, R.A., Photoelectron spectroscopy of HCI and DCI using molecular beams, J. Chem. Phys., 1970, 52, 2867. [all data]

Lempka, Passmore, et al., 1968
Lempka, H.J.; Passmore, T.R.; Price, W.C., The photoelectron spectra and ionized states of the halogen acids, Proc. Roy. Soc. (London), 1968, A304, 53. [all data]

Nicholson, 1965
Nicholson, A.J.C., Photoionization-efficiency curves. II. False and genuine structure, J. Chem. Phys., 1965, 43, 1171. [all data]

Watanabe, 1957
Watanabe, K., Ionization potentials of some molecules, J. Chem. Phys., 1957, 26, 542. [all data]

Krauss, Walker, et al., 1968
Krauss, M.; Walker, J.A.; Dibeler, V.H., Mass spectrometric study of photoionization. X. Hydrogen chloride and methyl halides, J. Res. NBS, 1968, 72A, 281. [all data]

Fox, 1957
Fox, R.E., Negative ion formation in hydrogen chloride by electron impact, J. Chem. Phys., 1957, 26, 1281. [all data]

Martin and Hepburn, 1998
Martin, J.D.D.; Hepburn, J.W., Determination of bond dissociation energies by threshold ion-pair production spectroscopy: An improved D-0(HCl), J. Chem. Phys., 1998, 109, 19, 8139-8142, https://doi.org/10.1063/1.477476 . [all data]

Fujio, McIver, et al., 1981
Fujio, M.; McIver, R.T., Jr.; Taft, R.W., Effects on the acidities of phenols from specific substituent-solvent interactions. Inherent substituent parameters from gas phase acidities, J. Am. Chem. Soc., 1981, 103, 4017. [all data]

Check, Faust, et al., 2001
Check, C.E.; Faust, T.O.; Bailey, J.M.; Wright, B.J.; Gilbert, T.M.; Sunderlin, L.S., Addition of Polarization and Diffuse Functions to the LANL2DZ Basis Set for P-Block Elements, J. Phys. Chem. A,, 2001, 105, 34, 8111, https://doi.org/10.1021/jp011945l . [all data]

Caldwell and Kebarle, 1985
Caldwell, G.; Kebarle, P., The hydrogen bond energies of the bihalide ions XHX- and YHX-, Can. J. Chem., 1985, 63, 1399. [all data]

McMahon, Heinis, et al., 1988
McMahon, T.; Heinis, T.; Nicol, G.; Hovey, J.K.; Kebarle, P., Methyl Cation Affinities, J. Am. Chem. Soc., 1988, 110, 23, 7591, https://doi.org/10.1021/ja00231a002 . [all data]

Foster, Williamson, et al., 1974
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Walters, Grover, et al., 1985
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Notes

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