H2N(CH2)7NH2
- Formula: C7H18N2
- Molecular weight: 130.2312
- IUPAC Standard InChI: InChI=1S/C7H18N2/c8-6-4-2-1-3-5-7-9/h1-9H2
- IUPAC Standard InChIKey: PWSKHLMYTZNYKO-UHFFFAOYSA-N
- CAS Registry Number: 646-19-5
- 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: 1,7-Diaminoheptane; Heptamethylenediamine; 1,7-Heptanediamine; 1,7-Heptamethylenediamine
- Permanent link for this species. Use this link for bookmarking this species for future reference.
- Information on this page:
- Other data available:
- 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.
Phase change data
Go To: Top, 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:
BS - Robert L. Brown and Stephen E. Stein
AC - William E. Acree, Jr., James S. Chickos
| Quantity | Value | Units | Method | Reference | Comment |
|---|---|---|---|---|---|
| Tboil | 497.2 | K | N/A | Weast and Grasselli, 1989 | BS |
Enthalpy of vaporization
| ΔvapH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 11.1 | 288. | A | Stephenson and Malanowski, 1987 | Based on data from 273. to 313. K.; AC |
Enthalpy of fusion
| ΔfusH (kcal/mol) | Temperature (K) | Method | Reference | Comment |
|---|---|---|---|---|
| 8.831 | 298.5 | DSC | Dall'Acqua, Della Gatta, et al., 2002 | AC |
References
Go To: Top, Phase change data, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]
Stephenson and Malanowski, 1987
Stephenson, Richard M.; Malanowski, Stanislaw,
Handbook of the Thermodynamics of Organic Compounds, 1987, https://doi.org/10.1007/978-94-009-3173-2
. [all data]
Dall'Acqua, Della Gatta, et al., 2002
Dall'Acqua, Lorenzo; Della Gatta, Giuseppe; Nowicka, Bozenna; Ferloni, Paolo,
Enthalpies and entropies of fusion of ten alkane-α, ω-diamines H2 N-- (CH 2)n-- NH2 where 3≤n≤12,
The Journal of Chemical Thermodynamics, 2002, 34, 1, 1-12, https://doi.org/10.1006/jcht.2001.0950
. [all data]
Notes
Go To: Top, Phase change data, References
- Symbols used in this document:
Tboil Boiling point ΔfusH Enthalpy of fusion ΔvapH Enthalpy of vaporization - 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.