o-Phenanthroline
- Formula: C12H8N2
- Molecular weight: 180.2053
- IUPAC Standard InChIKey: DGEZNRSVGBDHLK-UHFFFAOYSA-N
- CAS Registry Number: 66-71-7
- Chemical structure:
This structure is also available as a 2d Mol file - Other names: 1,10-Phenanthroline; β-Phenanthroline; Phenanthroline; 1,10-o-Phenanthroline; 4,5-Diazaphenanthrene; 1,10-Fenanthrolin; Orthophenanthroline; Activ-8 in hexylene glycol; Solution forms containing 1,10-phenanthroline
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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: William E. Acree, Jr., James S. Chickos
Enthalpy of vaporization
ΔvapH (kJ/mol) | Temperature (K) | Method | Reference |
---|---|---|---|
77.7 ± 0.1 | 520. | EB | Chirico, Kazakov, et al., 2010 |
74.9 ± 0.2 | 560. | EB | Chirico, Kazakov, et al., 2010 |
72.1 ± 0.2 | 600. | EB | Chirico, Kazakov, et al., 2010 |
Enthalpy of fusion
ΔfusH (kJ/mol) | Temperature (K) | Method | Reference |
---|---|---|---|
15.5 | 391.7 | AC | Chirico, Kazakov, et al., 2010 |
11.8 | 391.1 | DSC | Bonicelli, Catalani, et al., 2007 |
Gas phase ion energetics 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 as indicated in comments:
MM - Michael M. Meot-Ner (Mautner)
LLK - Sharon G. Lias, Rhoda D. Levin, and Sherif A. Kafafi
Gas basicity at 298K
Gas basicity (review) (kJ/mol) | Reference | Comment |
---|---|---|
>908. | Shen and Brodbelt, 1998 | GB > 18-Crown-6. From PT bracketing at nominal 300 K, but ion energies are undefined. Reference GB readjusted to Hunter and Lias, 1998; MM |
Ionization energy determinations
IE (eV) | Method | Reference | Comment |
---|---|---|---|
8.3 | PE | Hush, Cheung, et al., 1975 | LLK |
8.51 ± 0.02 | PE | Hush, Cheung, et al., 1975 | Vertical value; LLK |
Mass spectrum (electron ionization)
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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: NIST Mass Spectrometry Data Center, William E. Wallace, director
Spectrum
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Additional Data
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Due to licensing restrictions, this spectrum cannot be downloaded.
Owner | NIST Mass Spectrometry Data Center Collection (C) 2014 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
---|---|
Origin | Japan AIST/NIMC Database- Spectrum MS-IW-3470 |
NIST MS number | 230013 |
UV/Visible spectrum
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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Spectrum
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Additional Data
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Source | Lang (editor), 1961 |
---|---|
Owner | INEP CP RAS, NIST OSRD Collection (C) 2007 copyright by the U.S. Secretary of Commerce on behalf of the United States of America. All rights reserved. |
Origin | INSTITUTE OF ENERGY PROBLEMS OF CHEMICAL PHYSICS, RAS |
Source reference | RAS UV No. 19766 |
Instrument | Beckman DU |
References
Go To: Top, Phase change data, Gas phase ion energetics data, Mass spectrum (electron ionization), UV/Visible spectrum, NIST Free Links, NIST Subscription Links, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Chirico, Kazakov, et al., 2010
Chirico, Robert D.; Kazakov, Andrei F.; Steele, William V.,
Thermodynamic properties of three-ring aza-aromatics. 2. Experimental results for 1,10-phenanthroline, phenanthridine, and 7,8-benzoquinoline, and mutual validation of experiments and computational methods,
The Journal of Chemical Thermodynamics, 2010, 42, 5, 581-590, https://doi.org/10.1016/j.jct.2009.11.011
. [all data]
Bonicelli, Catalani, et al., 2007
Bonicelli, M.G.; Catalani, A.; Mariano, G.; Vecchio, S.,
Heat capacities and molar enthalpies and entropies of fusion for anhydrous 1,10-phenanthroline and 2,9-dimethyl-1,10-phenanthroline,
Thermochimica Acta, 2007, 466, 1-2, 69-71, https://doi.org/10.1016/j.tca.2007.10.001
. [all data]
Shen and Brodbelt, 1998
Shen, J.; Brodbelt, J.,
Evaluation of proton-binding capabilities of polyether and pyridyl ligands,
J. Mass Spectrom., 1998, 33, 118. [all data]
Hunter and Lias, 1998
Hunter, E.P.; Lias, S.G.,
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update,
J. Phys. Chem. Ref. Data, 1998, 27, 3, 413-656, https://doi.org/10.1063/1.556018
. [all data]
Hush, Cheung, et al., 1975
Hush, N.S.; Cheung, A.S.; Hilton, P.R.,
Binding energies of π- and "lone pair"-levels in mono- and diaza-phenanthrenes and anthracenes: an He(I) photoelectron spectroscopic study,
J. Electron Spectrosc. Relat. Phenom., 1975, 7, 385. [all data]
Lang (editor), 1961
Lang (editor), L.,
Absorption Spectra in the Ultraviolet and Visible Region, 1961, 2, 389. [all data]
Notes
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- Symbols used in this document:
ΔfusH Enthalpy of fusion ΔvapH Enthalpy of vaporization - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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