Tetrachlorobis-(methylammonium) manganese II
- Formula: C2H12Cl4MnN2
- Molecular weight: 260.880
- CAS Registry Number: 12121-86-7
- Information on this page:
- Options:
Condensed phase thermochemistry data
Go To: Top, Phase change data, NIST Subscription Links, 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: Eugene S. Domalski and Elizabeth D. Hearing
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| S°solid,1 bar | 96.30 | cal/mol*K | N/A | White, Granville, et al., 1982 |
Constant pressure heat capacity of solid
| Cp,solid (cal/mol*K) | Temperature (K) | Reference | Comment |
|---|---|---|---|
| 63.00 | 298.15 | White, Granville, et al., 1982 | T = 10 to 300 K. |
Phase change data
Go To: Top, Condensed phase thermochemistry data, NIST Subscription Links, 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: Eugene S. Domalski and Elizabeth D. Hearing
Enthalpy of phase transition
| ΔHtrs (kcal/mol) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 0.174 | 94.37 | crystaline, III | crystaline, II | White, Granville, et al., 1982 | |
| 0.0280 | 257.02 | crystaline, II | crystaline, I | White, Granville, et al., 1982 | |
| 0.0011 | 257. | crystaline, III | crystaline, II | Bocanegra, Arriandiaga, et al., 1975 | |
| 0.00086 | 393. | crystaline, II | crystaline, I | Bocanegra, Arriandiaga, et al., 1975 |
Entropy of phase transition
| ΔStrs (cal/mol*K) | Temperature (K) | Initial Phase | Final Phase | Reference | Comment |
|---|---|---|---|---|---|
| 1.85 | 94.37 | crystaline, III | crystaline, II | White, Granville, et al., 1982 | |
| 0.108 | 257.02 | crystaline, II | crystaline, I | White, Granville, et al., 1982 | |
| 0.0041 | 257. | crystaline, III | crystaline, II | Bocanegra, Arriandiaga, et al., 1975 | |
| 0.002 | 393. | crystaline, II | crystaline, I | Bocanegra, Arriandiaga, et al., 1975 |
References
Go To: Top, Condensed phase thermochemistry data, Phase change data, NIST Subscription Links, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
White, Granville, et al., 1982
White, M.A.; Granville, N.W.; Staveley, L.A.K.,
The heat capacity of the layer compound tetrachlorobis(methylammonium)manganese-II (CH3NH3)2MnCl4 from 10 to 300K,
J. Phys. Chem. Solids, 1982, 43, 341-349. [all data]
Bocanegra, Arriandiaga, et al., 1975
Bocanegra, E.H.; Arriandiaga, M.A.; Tello, M.J.; Arend, H.,
Specific heat anomalies in the structural phase transitions in (CnH2n+1NH3)2MnCl4 compounds,
Quatrieme Conference Internationale de Thermodynamique Chimique, 1975, II, Thermophysique (capacites thermiques) pp 12-18. [all data]
Notes
Go To: Top, Condensed phase thermochemistry data, Phase change data, NIST Subscription Links, References
- Symbols used in this document:
Cp,solid Constant pressure heat capacity of solid S°solid,1 bar Entropy of solid at standard conditions (1 bar) ΔHtrs Enthalpy of phase transition ΔStrs Entropy of phase transition - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
- The National Institute of Standards and Technology (NIST) uses its best efforts to deliver a high quality copy of the Database and to verify that the data contained therein have been selected on the basis of sound scientific judgment. However, NIST makes no warranties to that effect, and NIST shall not be liable for any damage that may result from errors or omissions in the Database.
- Customer support for NIST Standard Reference Data products.