Diiodoborane
- Formula: BI2
- Molecular weight: 264.620
- IUPAC Standard InChI: InChI=1S/BHI2/c2-1-3/h1H
- IUPAC Standard InChIKey: KOQOFOFXEFRGHO-UHFFFAOYSA-N
- CAS Registry Number: 18015-86-6
- Chemical structure:
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Gas phase thermochemistry data
Go To: Top, 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°gas | 242.67 | kJ/mol | Review | Chase, 1998 | Data last reviewed in December, 1964 |
| Quantity | Value | Units | Method | Reference | Comment |
| S°gas,1 bar | 309.50 | J/mol*K | Review | Chase, 1998 | Data last reviewed in December, 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 (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. to 6000. |
|---|---|
| A | 56.23882 |
| B | 1.654664 |
| C | -0.445374 |
| D | 0.037848 |
| E | -0.702582 |
| F | 223.4800 |
| G | 373.1274 |
| H | 242.6724 |
| Reference | Chase, 1998 |
| Comment | Data last reviewed in December, 1964 |
Vibrational and/or electronic energy levels
Go To: Top, Gas 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 | |
|---|---|---|---|---|---|---|---|
| b2 | 3 | Asym. stretch | 745.5 | Ar | IR | Hassanzadeh and Andrews, 1993 | |
| 3 | Asym. stretch | 739.5 | Ar | IR | Hassanzadeh and Andrews, 1993 | ||
Additional references: Jacox, 1994, page 89
References
Go To: Top, Gas 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]
Hassanzadeh and Andrews, 1993
Hassanzadeh, P.; Andrews, L.,
Reaction of halogens with laser-ablated boron: infrared spectra of BXn (X = F, Cl, Br, I; n = 1, 2, 3) in solid argon,
J. Phys. Chem., 1993, 97, 19, 4910, https://doi.org/10.1021/j100121a008
. [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
Go To: Top, Gas 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) ΔfH°gas Enthalpy of formation of gas at standard conditions - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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