1,2,3,4-Tetrahydro-N-methylcarbazole

Formula: C₁₃H₁₅N
Molecular weight: 185.2649
IUPAC Standard InChI: InChI=1S/C13H15N/c1-14-12-8-4-2-6-10(12)11-7-3-5-9-13(11)14/h2,4,6,8H,3,5,7,9H2,1H3
IUPAC Standard InChIKey: LXRZSWPAXJBXQM-UHFFFAOYSA-N
CAS Registry Number: 6303-88-4
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.
Species with the same structure:
- 1,2,3,4-Tetrahydro-9-methylcarbazole
- N-methyl-tetrahydrocarbazole
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NIST / TRC Web Thermo Tables, professional edition (thermophysical and thermochemical data)

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Gas phase thermochemistry data

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Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity	Value	Units	Method	Reference	Comment
Δ_fH°_gas	93.1 ± 0.3	kJ/mol	Ccr	Steele, Knipmeyer, et al., 1991

Condensed phase thermochemistry data

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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
Δ_fH°_solid	-1.0 ± 1.3	kJ/mol	Ccr	Steele, Knipmeyer, et al., 1991	ALS
Quantity	Value	Units	Method	Reference	Comment
Δ_cH°_solid	-7258.3 ± 1.1	kJ/mol	Ccr	Steele, Knipmeyer, et al., 1991	ALS
Quantity	Value	Units	Method	Reference	Comment
S°_{solid,1 bar}	260.89	J/mol*K	N/A	N/A	S(liq,298.15 K) = 302.61 J/mol*K. S value for the liquid at 298.15 K was calculated with graphically extrapolated data.; DH
S°_{solid,1 bar}	260.89	J/mol*K	N/A	Steele, Chirico, et al., 1992	crystaline, I phase; S(liq,298.15 K) = 302.61 J/mol*K, extrapolated.; DH

Constant pressure heat capacity of solid

C_p,solid (J/mol*K)	Temperature (K)	Reference	Comment
241.35	298.15	N/A	T = 5 to 460 K. Cp(liq,298.15 K) = 290.62 J/mol*K. Cp value for the liquid at 298.15 K was calculated with graphically extrapolated data.; DH
241.35	298.15	Steele, Chirico, et al., 1992	crystaline, I phase; T = 5 to 660 K. Cp(liq,298.15 K) = 290.62 J/mol*K, extrapolated.; DH

Phase change data

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Data compiled as indicated in comments:
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
DRB - Donald R. Burgess, Jr.
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity	Value	Units	Method	Reference	Comment
T_triple	323.71	K	N/A	Steele, Chirico, et al., 1992	Crystal phase 1 phase; Uncertainty assigned by TRC = 0.01 K; TRC
Quantity	Value	Units	Method	Reference	Comment
Δ_subH°	94.1	kJ/mol	N/A	Steele, Knipmeyer, et al., 1991	DRB

Enthalpy of phase transition

ΔH_trs (kJ/mol)	Temperature (K)	Initial Phase	Final Phase	Reference	Comment
0.0	103.8	crystaline, IV	crystaline, III	N/A	DH
0.6793	162.4	crystaline, III	crystaline, II	N/A	DH
0.0	210.4	crystaline, II	crystaline, I	N/A	DH
14.6668	323.71	crystaline, I	liquid	N/A	DH
0.0	103.8	crystaline, IV	crystaline, III	Steele, Chirico, et al., 1992	DH
0.679	162.4	crystaline, III	crystaline, II	Steele, Chirico, et al., 1992	DH
0.0	210.4	crystaline, II	crystaline, I	Steele, Chirico, et al., 1992	DH
14.667	323.71	crystaline, I	liquid	Steele, Chirico, et al., 1992	DH

In addition to the Thermodynamics Research Center (TRC) data available from this site, much more physical and chemical property data is available from the following TRC products:

References

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Steele, Knipmeyer, et al., 1991
Steele, W.V.; Knipmeyer, S.E.; Nguyen, A.; Chirico, R.D., Thermodynamic properties of 9-methylcarbazole and 1,2,3,4-tetrahydro-9-methylcarbazole, Rept. NIPER-520 prepard for USDOE by ITT Res. Instit. Bartlesville, OK. work performed under cooperative agreement No. DE-FC22-83FE60149 (NIPER-520), 1991, 1-45. [all data]

Steele, Chirico, et al., 1992
Steele, W.V.; Chirico, R.D.; Knipmeyer, S.E.; Nguyen, A., The thermodynamic properties of 9-methylcarbazole and of 1,2,3,4-tetrahydro-9-methylcarbzaole, J. Chem. Thermodyn., 1992, 24, 245-271. [all data]

Notes

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Symbols used in this document:

C_p,solid	Constant pressure heat capacity of solid
S°_{solid,1 bar}	Entropy of solid at standard conditions (1 bar)
T_triple	Triple point temperature
ΔH_trs	Enthalpy of phase transition
Δ_cH°_solid	Enthalpy of combustion of solid at standard conditions
Δ_fH°_gas	Enthalpy of formation of gas at standard conditions
Δ_fH°_solid	Enthalpy of formation of solid at standard conditions
Δ_subH°	Enthalpy of sublimation at standard conditions

Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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