Bis-(tetramethylammonium) tetrachloromanganate
- Formula: C8H24Cl4MnN2
- Molecular weight: 345.040
- CAS Registry Number: 16594-83-5
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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.
Data compiled by: Eugene S. Domalski and Elizabeth D. Hearing
Constant pressure heat capacity of solid
| Cp,solid (J/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 424. | 300. | Zubillaga, Lopez-Echarri, et al., 1988 | T = 50 to 330 K. Data given graphically and estimated from graph. |
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: Eugene S. Domalski and Elizabeth D. Hearing
Enthalpy of phase transition
| ΔHtrs (kJ/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 0.308 | 175.63 | crystaline, V | crystaline, IV | Zubillaga, Lopez-Echarri, et al., 1988 | |
| 0.233 | 268.65 | crystaline, IV | crystaline, III | Zubillaga, Lopez-Echarri, et al., 1988 | |
| 0.0058 | 292.3 | crystaline, III | crystaline, II | Zubillaga, Lopez-Echarri, et al., 1988 | |
| 2.079 | 292.6 | crystaline, II | crystaline, I | Zubillaga, Lopez-Echarri, et al., 1988 |
Entropy of phase transition
| ΔStrs (J/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 1.75 | 175.63 | crystaline, V | crystaline, IV | Zubillaga, Lopez-Echarri, et al., 1988 | |
| 0.83 | 268.65 | crystaline, IV | crystaline, III | Zubillaga, Lopez-Echarri, et al., 1988 | |
| 0.02 | 292.3 | crystaline, III | crystaline, II | Zubillaga, Lopez-Echarri, et al., 1988 | |
| 7.98 | 292.6 | crystaline, II | crystaline, I | Zubillaga, Lopez-Echarri, et al., 1988 |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Zubillaga, Lopez-Echarri, et al., 1988
Zubillaga, J.; Lopez-Echarri, A.; Tello, M.J.,
The incommensurate phase in tetramethylammonium tetrachloromanganate,
J. Phys. C: Solid State Phys., 1988, 21, 4417-4423. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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