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Mercury diiodide


Gas phase thermochemistry 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.

Quantity Value Units Method Reference Comment
Deltafgas-3.855kcal/molReviewChase, 1998Data last reviewed in March, 1962
Quantity Value Units Method Reference Comment
gas,1 bar80.356cal/mol*KReviewChase, 1998Data last reviewed in March, 1962

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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Temperature (K) 1500. - 6000.
A 14.89790
B 0.005199
C -0.001420
D 0.000122
E -0.026041
F -8.384331
G 98.23580
H -3.854931
ReferenceChase, 1998
Comment Data last reviewed in March, 1962

Condensed phase thermochemistry 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.

Quantity Value Units Method Reference Comment
Deltafliquid-20.86kcal/molReviewChase, 1998Data last reviewed in March, 1962
Quantity Value Units Method Reference Comment
liquid,1 bar51.544cal/mol*KReviewChase, 1998Data last reviewed in March, 1962
Quantity Value Units Method Reference Comment
Deltafsolid-25.201kcal/molReviewChase, 1998Data last reviewed in March, 1962
Quantity Value Units Method Reference Comment
solid43.339cal/mol*KReviewChase, 1998Data last reviewed in March, 1962

Liquid 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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Temperature (K) 530. - 1500.
A 24.40010
B 6.661329×10-13
C 0.000000
D 0.000000
E 1.278980×10-13
F -28.44130
G 80.13499
H -20.86210
ReferenceChase, 1998
Comment Data last reviewed in March, 1962

Solid 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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Temperature (K) 298. - 402.402. - 530.
A 15.3826020.10490
B 10.410400.000000
C 0.0000000.000000
D 0.0000000.000000
E 0.0084820.000000
F -30.22060-30.69771
G 58.8977168.85540
H -25.20010-25.20010
ReferenceChase, 1998Chase, 1998
Comment Data last reviewed in March, 1962 Data last reviewed in March, 1962

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 by: William E. Acree, Jr., James S. Chickos

Enthalpy of vaporization

DeltavapH (kcal/mol) Temperature (K) Method Reference Comment
15.3574.UVSu, Zhu, et al., 2002Based on data from 537. - 610. K.

Enthalpy of fusion

DeltafusH (kcal/mol) Temperature (K) Method Reference
4.85537.Sub-VapSu, Zhu, et al., 2002

Reaction thermochemistry 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:
MS - José A. Martinho Simões
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

Mercury, dimethyl- (l) + 2Iodine (cr) = 2Methane, iodo- (l) + Mercury diiodide (cr)

By formula: C2H6Hg (l) + 2I2 (cr) = 2CH3I (l) + HgI2 (cr)

Quantity Value Units Method Reference Comment
Deltar-44.1 ± 0.2kcal/molRSCHartley, Pritchard, et al., 1950Please also see Pedley and Rylance, 1977 and Cox and Pilcher, 1970.; MS

C6H14Hg (l) + Mercury diiodide (cr) = 2C3H7HgI (cr)

By formula: C6H14Hg (l) + HgI2 (cr) = 2C3H7HgI (cr)

Quantity Value Units Method Reference Comment
Deltar-15.6 ± 0.41kcal/molRSCMortimer, Pritchard, et al., 1952Please also see Pedley and Rylance, 1977 and Cox and Pilcher, 1970.; MS

C6H14Hg (l) + Mercury diiodide (cr) = 2C3H7HgI (cr)

By formula: C6H14Hg (l) + HgI2 (cr) = 2C3H7HgI (cr)

Quantity Value Units Method Reference Comment
Deltar-12.6 ± 0.41kcal/molRSCMortimer, Pritchard, et al., 1952Please also see Pedley and Rylance, 1977 and Cox and Pilcher, 1970.; MS

Mercury, dimethyl- (l) + Mercury diiodide (cr) = 2Methylmercuric iodide (cr)

By formula: C2H6Hg (l) + HgI2 (cr) = 2CH3HgI (cr)

Quantity Value Units Method Reference Comment
Deltar-9.51 ± 0.38kcal/molRSCHartley, Pritchard, et al., 1950Please also see Pedley and Rylance, 1977 and Cox and Pilcher, 1970.; MS

Mercury, diethyl- (l) + Mercury diiodide (cr) = 2C2H5HgI (cr)

By formula: C4H10Hg (l) + HgI2 (cr) = 2C2H5HgI (cr)

Quantity Value Units Method Reference Comment
Deltar-13.2 ± 1.3kcal/molRSCHartley, Pritchard, et al., 1951Please also see Pedley and Rylance, 1977 and Cox and Pilcher, 1970.; MS

Mercury, diphenyl- (l) + Mercury diiodide (cr) = 2Phenyl mercuric iodide (cr)

By formula: C12H10Hg (l) + HgI2 (cr) = 2C6H5HgI (cr)

Quantity Value Units Method Reference Comment
Deltar-5.2 ± 0.2kcal/molRSCHartley, Pritchard, et al., 1951Please also see Pedley and Rylance, 1977 and Cox and Pilcher, 1970.; MS

2Propane, 2-iodo- + Mercury diiodide = C6H14Hg + 2Iodine

By formula: 2C3H7I + HgI2 = C6H14Hg + 2I2

Quantity Value Units Method Reference Comment
Deltar57.92 ± 0.46kcal/molCmMortimer, Pritchard, et al., 1952, 2liquid phase; ALS

2Propane, 1-iodo- + Mercury diiodide = C6H14Hg + 2Iodine

By formula: 2C3H7I + HgI2 = C6H14Hg + 2I2

Quantity Value Units Method Reference Comment
Deltar51.56 ± 0.58kcal/molCmMortimer, Pritchard, et al., 1952, 2liquid phase; ALS

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:
L - Sharon G. Lias

Data compiled as indicated in comments:
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

Quantity Value Units Method Reference Comment
IE (evaluated)9.509 ± 0.002eVN/AN/AL

Ionization energy determinations

IE (eV) Method Reference Comment
9.5088 ± 0.0022PILinn, Tzeng, et al., 1983LBLHLM
9.5PELee and Potts, 1981LLK
9.50PEEland, 1970RDSH

Appearance energy determinations

Ion AE (eV) Other Products MethodReferenceComment
HgI+10.88 ± 0.05IPILinn, Tzeng, et al., 1983LBLHLM
HgI+10.88 ± 0.05IEILinn, Tzeng, et al., 1983LBLHLM
HgI+11.3 ± 0.4IEIKiser, Dillard, et al., 1969RDSH
I+13.12 ± 0.04HgIEILinn, Tzeng, et al., 1983LBLHLM
I+13.12 ± 0.04HgIPILinn, Tzeng, et al., 1983LBLHLM
I+15.5 ± 0.4?EIKiser, Dillard, et al., 1969RDSH
I2+10.73 ± 0.04HgEILinn, Tzeng, et al., 1983LBLHLM
I2+10.73 ± 0.04HgPILinn, Tzeng, et al., 1983LBLHLM

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, NIST Free Links, Notes

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

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

Su, Zhu, et al., 2002
Su, Ching-Hua; Zhu, Shen; Ramachandran, N.; Burger, A., Beer law constants and vapor pressures of HgI2 over HgI2(s,l), Journal of Crystal Growth, 2002, 235, 1-4, 313-319, https://doi.org/10.1016/S0022-0248(01)01806-1 . [all data]

Hartley, Pritchard, et al., 1950
Hartley, K.; Pritchard, H.O.; Skinner, H.A., Thermochemistry of metallic alkyls. III.?mercury dimethyl and mercury methyl halides, Trans. Faraday Soc., 1950, 46, 1019, https://doi.org/10.1039/tf9504601019 . [all data]

Pedley and Rylance, 1977
Pedley, J.B.; Rylance, J., Computer Analysed Thermochemical Data: Organic and Organometallic Compounds, University of Sussex, Brigton, 1977. [all data]

Cox and Pilcher, 1970
Cox, J.D.; Pilcher, G., Thermochemistry of Organic and Organometallic Compounds in Academic Press, New York, 1970. [all data]

Mortimer, Pritchard, et al., 1952
Mortimer, C.T.; Pritchard, H.O.; Skinner, H.A., Thermochemistry of metallic alkyls. Part V.?Mercury di-propyl and mercury di-isopropyl, Trans. Faraday Soc., 1952, 48, 220, https://doi.org/10.1039/tf9524800220 . [all data]

Hartley, Pritchard, et al., 1951
Hartley, K.; Pritchard, H.O.; Skinner, H.A., Thermochemistry of metallic alkyls. IV. Mercury diethyl and mercury diphenyl, Trans. Faraday Soc., 1951, 47, 254, https://doi.org/10.1039/tf9514700254 . [all data]

Mortimer, Pritchard, et al., 1952, 2
Mortimer, C.T.; Pritchard, H.O.; Skinner, H.A., Thermochemistry of metallic alkyls. Part V - Mercury di-propyl and mercury di-isopropyl, Trans. Faraday Soc., 1952, 48, 220-229. [all data]

Linn, Tzeng, et al., 1983
Linn, S.H.; Tzeng, W.-B.; Brom, J.M., Jr.; Ng, C.Y., Molecular beam photoionization study of HgBr2 and HgI2, J. Chem. Phys., 1983, 78, 50. [all data]

Lee and Potts, 1981
Lee, E.P.F.; Potts, A.W., Fine structure in the He(I)/He(II) photoelectron spectra of the metal valence (d) shells of the group IIB dihalides, J. Electron Spectrosc. Relat. Phenom., 1981, 22, 247. [all data]

Eland, 1970
Eland, J.H.D., Photoelectron spectra and chemical bonding of mercury(II) compounds, Intern. J. Mass Spectrom. Ion Phys., 1970, 4, 37. [all data]

Kiser, Dillard, et al., 1969
Kiser, R.W.; Dillard, J.G.; Dugger, D.L., Mass spectrometry of inorganic halides, Advan. Chem. Ser., 1969, 72, 153. [all data]


Notes

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Gas phase ion energetics data, NIST Free Links, References