beryllium chloride
- Formula: BeCl2
- Molecular weight: 79.918
- CAS Registry Number: 7787-47-5
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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 |
|---|---|---|---|---|---|
| ΔfH°gas | -86.099 | kcal/mol | Review | Chase, 1998 | Data last reviewed in June, 1965 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°gas,1 bar | 60.261 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1965 |
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) | 2000. - 6000. |
|---|---|
| A | 13.95480 |
| B | 0.780023 |
| C | -0.206874 |
| D | 0.017418 |
| E | -0.172418 |
| F | -90.87130 |
| G | 75.95399 |
| H | -86.10000 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in June, 1965 |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry data, Vibrational and/or electronic energy levels, 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 |
|---|---|---|---|---|---|
| ΔfH°liquid | -117.43 | kcal/mol | Review | Chase, 1998 | Data last reviewed in June, 1965 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°liquid,1 bar | 19.05 | cal/mol*K | Review | Chase, 1998 | Data last reviewed in June, 1965 |
| Quantity | Value | Units | Method | Reference | Comment |
| ΔfH°solid | -118.60 | kcal/mol | Review | Chase, 1998 | β phase; Data last reviewed in June, 1965 |
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) | 688. - 2000. |
|---|---|
| A | 29.02010 |
| B | -3.500741×10-9 |
| C | 2.427441×10-9 |
| D | -5.552469×10-10 |
| E | -1.287711×10-10 |
| F | -128.1710 |
| G | 48.53690 |
| H | -117.4270 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in June, 1965 |
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. - 688. | 298. - 688. |
|---|---|---|
| A | 13.74823 | -0.637364 |
| B | 11.55657 | 77.89269 |
| C | -6.755737 | -105.1532 |
| D | 1.330101 | 49.33843 |
| E | -0.151830 | 0.084659 |
| F | -123.6654 | -119.4928 |
| G | 30.74403 | 0.474653 |
| H | -118.5999 | -117.3351 |
| Reference | Chase, 1998 | Chase, 1998 |
| Comment | β phase; Data last reviewed in June, 1965 | α phase; Data last reviewed in June, 1965 |
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 | |
|---|---|---|---|---|---|---|---|
| Πu | 2 | Bend | 238 | s | Ne | IR | Snelson, 1968 |
| Σu+ | 3 | Asym. stretch | 1122 | s | Ne | IR | Snelson, 1966 Snelson, 1968 |
| 3 | Asym. stretch | 1108 | s | Ar | IR | Snelson, 1966 | |
| 3 | Asym. stretch | 1100 | s | Kr | IR | Snelson, 1966 | |
Additional references: Jacox, 1994, page 84; Buchler, Stauffer, et al., 1964
Notes
| s | Strong |
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]
Snelson, 1966
Snelson, A.,
Infrared Spectra of Some Alkaline Earth Halides by the Matrix Isolation Technique,
J. Phys. Chem., 1966, 70, 10, 3208, https://doi.org/10.1021/j100882a031
. [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]
Buchler, Stauffer, et al., 1964
Buchler, A.; Stauffer, J.L.; Klemperer, W.,
None,
J. Am. Chem. Soc., 1964, 86, 21, 4544, https://doi.org/10.1021/ja01075a007
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Vibrational and/or electronic energy levels, References
- Symbols used in this document:
S°gas,1 bar Entropy of gas at standard conditions (1 bar) S°liquid,1 bar Entropy of liquid at standard conditions (1 bar) ΔfH°gas Enthalpy of formation of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔfH°solid Enthalpy of formation of solid at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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