4,4'-oxybis(benzene-1,2-diamine)
- Formula: C12H14N4O
- Molecular weight: 230.2658
- IUPAC Standard InChIKey: RQBIGPMJQUKYAH-UHFFFAOYSA-N
- CAS Registry Number: 2676-59-7
- Chemical structure:
This structure is also available as a 2d Mol file or as a computed 3d SD file
The 3d structure may be viewed using Java or Javascript. - Other names: 3,3',4,4'-Tetraminodiphenyl ether
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Options:
Data at NIST subscription sites:
NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access. The purpose of the fee is to recover costs associated with the development of data collections included in such sites. Your institution may already be a subscriber. Follow the links above to find out more about the data in these sites and their terms of usage.
Gas phase thermochemistry data
Go To: Top, Condensed phase thermochemistry data, Phase change 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: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔcH°gas | -6632. ± 2. | kJ/mol | Ccb | Karyakin, Rabinovich, et al., 1977 | Hfusion=6.047±0.07 kcal/mol at 425.1K |
Condensed phase thermochemistry data
Go To: Top, Gas phase thermochemistry data, Phase change 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 as indicated in comments:
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
ΔfH°liquid | -91. ± 2. | kJ/mol | Ccb | Karyakin, Rabinovich, et al., 1977 | Hfusion=6.047±0.07 kcal/mol at 425.1K; ALS |
Quantity | Value | Units | Method | Reference | Comment |
S°solid,1 bar | 293.9 | J/mol*K | N/A | Karyakin, Rabinovich, et al., 1977 | DH |
S°solid,1 bar | 295.1 | J/mol*K | N/A | Karyakin, Sapozhnikov, et al., 1973 | DH |
Constant pressure heat capacity of solid
Cp,solid (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
400. | 300. | Karyakin, Rabinovich, et al., 1977 | T = 100 to 700 K. Data given graphically. Value estimated from graph.; DH |
320.24 | 300. | Karyakin, Sapozhnikov, et al., 1973 | T = 20 to 300 K.; DH |
Phase change data
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 as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
DH - Eugene S. Domalski and Elizabeth D. Hearing
AC - William E. Acree, Jr., James S. Chickos
Quantity | Value | Units | Method | Reference | Comment |
---|---|---|---|---|---|
Ttriple | 402.6 | K | N/A | Karyakin, Rabinovich, et al., 1977, 2 | Uncertainty assigned by TRC = 0.1 K; TRC |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Reference | Comment |
---|---|---|---|
25.301 | 425.1 | Karyakin, Rabinovich, et al., 1977 | DH |
25.3 | 402.6 | Domalski and Hearing, 1990 | AC |
Entropy of fusion
ΔfusS (J/mol*K) | Temperature (K) | Reference | Comment |
---|---|---|---|
62.8 | 425.1 | Karyakin, Rabinovich, et al., 1977 | DH |
References
Go To: Top, Gas phase thermochemistry data, 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.
Karyakin, Rabinovich, et al., 1977
Karyakin, N.V.; Rabinovich, I.B.; Sapozhnikov, V.N.; Kamelova, G.P.; Krongauz, E.S.; Korshak, V.V.; Travnikova, A.P.,
Thermodynamics of the synthesis of poly[(2,2'-1,4-phenylene)-7,7'-oxy-bix(3-phenylquinoxaline)],
Vysokomol. Soedin., Ser. B, 1977, 19, 457-460. [all data]
Karyakin, Sapozhnikov, et al., 1973
Karyakin, N.V.; Sapozhnikov, V.N.; Mochilov, A.N.; Aron, B.M.; Chernova, V.I.; Rabinovich, I.B.,
Low temperature heat capacity and thermodynamic properties of some amines,
Tr. Khim. Khim. Tekhnol., 1973, (1), 53-54. [all data]
Karyakin, Rabinovich, et al., 1977, 2
Karyakin, N.V.; Rabinovich, I.B.; Sapozhnikov, V.N.; Kamelova, G.P.; Krongauz, E.S.; Korshak, V.V.,
Thermodynamics of the synthesis of poly[2,2'-(1,4-phenylene)-7,7'-oxy- bis(3-phenylquinoxaline)],
Vysokomol. Soedin., Ser. B, 1977, 19, 457-60. [all data]
Domalski and Hearing, 1990
Domalski, Eugene S.; Hearing, Elizabeth D.,
Heat Capacities and Entropies of Organic Compounds in the Condensed Phase Volume II,
J. Phys. Chem. Ref. Data, 1990, 19, 4, 881, https://doi.org/10.1063/1.555876
. [all data]
Notes
Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, 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) Ttriple Triple point temperature ΔcH°gas Enthalpy of combustion of gas at standard conditions ΔfH°liquid Enthalpy of formation of liquid at standard conditions ΔfusH Enthalpy of fusion ΔfusS Entropy of fusion - 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.