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beryllium 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-64.02kJ/molReviewChase, 1998Data last reviewed in December, 1975
Quantity Value Units Method Reference Comment
gas,1 bar291.46J/mol*KReviewChase, 1998Data last reviewed in December, 1975

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 (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 1500. - 6000.
A 60.26006
B 1.752980
C -0.469365
D 0.039755
E -0.541029
F -83.86870
G 360.8395
H -64.01520
ReferenceChase, 1998
Comment Data last reviewed in December, 1975

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-178.38kJ/molReviewChase, 1998Data last reviewed in December, 1975
Quantity Value Units Method Reference Comment
liquid,1 bar129.00J/mol*KReviewChase, 1998Data last reviewed in December, 1975
Quantity Value Units Method Reference Comment
Deltafsolid-188.70kJ/molReviewChase, 1998Data last reviewed in December, 1975
Quantity Value Units Method Reference Comment
solid120.40J/mol*KReviewChase, 1998Data last reviewed in December, 1975

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 (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 753. - 1500.
A 112.9680
B 0.000000
C 0.000000
D 0.000000
E 0.000000
F -216.1157
G 253.9458
H -178.3773
ReferenceChase, 1998
Comment Data last reviewed in December, 1975

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 (J/mol*K)
    H° = standard enthalpy (kJ/mol)
    S° = standard entropy (J/mol*K)
    t = temperature (K) / 1000.

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Temperature (K) 298. - 753.
A 82.46246
B 14.52484
C -10.32666
D 2.733977
E -1.517772
F -218.9655
G 207.7574
H -188.6980
ReferenceChase, 1998
Comment Data last reviewed in December, 1975

Vibrational and/or electronic energy levels

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, References, Notes

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

Data compiled by: Marilyn E. Jacox

State:   X


Vib. 
sym. 
 No.   Approximate 
 type of mode 
 cm-1   Med.   Method   References

Sigmau+ 3 Asym. stretch 872 s Ne IR Snelson, 1968
3 Asym. stretch 877 s Ar IR Snelson, 1968

Additional references: Jacox, 1994, page 84

Notes

sStrong

References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Vibrational and/or electronic energy levels, 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]

Snelson, 1968
Snelson, A., Infrared spectra of the beryllium halides, J. Phys. Chem., 1968, 72, 1, 250, https://doi.org/10.1021/j100847a046 . [all data]

Jacox, 1994
Jacox, M.E., Vibrational and electronic energy levels of polyatomic transient molecules, American Chemical Society, Washington, DC, 1994, 464. [all data]


Notes

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