Phenanthrene, 9,10-dimethyl-

Formula: C₁₆H₁₄
Molecular weight: 206.2824
IUPAC Standard InChI: InChI=1S/C16H14/c1-11-12(2)14-8-4-6-10-16(14)15-9-5-3-7-13(11)15/h3-10H,1-2H3
IUPAC Standard InChIKey: JUEORGSHIXFSSI-UHFFFAOYSA-N
CAS Registry Number: 604-83-1
Chemical structure:
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Other names: 9,10-Dimethylphenanthrene; 9,10-Phenanthraquinodimethane
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Gas phase ion energetics data

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Data compiled as indicated in comments:
RDSH - Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron

View reactions leading to C₁₆H₁₄⁺ (ion structure unspecified)

Ionization energy determinations

IE (eV)	Method	Reference	Comment
8.01 ± 0.05	EI	Nounou, 1966	RDSH

Appearance energy determinations

Ion	AE (eV)	Other Products	Method	Reference	Comment
C₁₅H₁₀⁺	18.0 ± 0.1	?	EI	Nounou, 1966	RDSH
C₁₅H₁₁⁺	12.0 ± 0.1	CH₃	EI	Nounou, 1966	RDSH

Gas Chromatography

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Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Lee's RI, non-polar column, temperature ramp

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Column type	Active phase	I	Reference	Comment
Capillary	CP Sil 8 CB	348.52	Garrigues, Parlanti, et al., 1987	50. m/0.22 mm/0.13 μm, H2, 120. C @ 2. min, 3. K/min; T_end: 270. C

Lee's RI, non-polar column, custom temperature program

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Column type	Active phase	I	Reference	Comment
Capillary	DB-5	347.9	Zamperlini, Silva, et al., 1997	30. m/0.25 mm/0.25 μm, He; Program: 90C (1min) => 10C/min => 120C => 4C/min => 310C (20min)

References

Go To: Top, Gas phase ion energetics data, Gas Chromatography, Notes

Nounou, 1966
Nounou, P., Etude des composes aromatiques par spectrometrie de masse. I. Mesure des potentials d'ionisation et d'apparition par la methode du potential retardateur et interpretation des courbes d'ionisation differentielle, J. Chim. Phys., 1966, 63, 994. [all data]

Garrigues, Parlanti, et al., 1987
Garrigues, P.; Parlanti, E.; Radke, M.; Bellocq, J.; Willsch, H.; Ewald, M., Identification of alkylphenanthrenes in shale oil and coal by liquid and capillary gas chromatography and high-resolution spectrofluorimetry (Shpol'skii effect), J. Chromatogr., 1987, 395, 217-228, https://doi.org/10.1016/S0021-9673(01)94112-3 . [all data]

Zamperlini, Silva, et al., 1997
Zamperlini, G.C.M.; Silva, M.R.S.; Vilegas, W., Identification of polycyclic aromatic hydrocarbons in sugar cane soot by gas chromatography-mass spectrometry, Chromatographia, 1997, 46, 11/12, 655-663, https://doi.org/10.1007/BF02490527 . [all data]

Notes

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Symbols used in this document:

AE Appearance energy
Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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