Pyrrole

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Gas phase thermochemistry data

Go To: Top, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), 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:
DRB - Donald R. Burgess, Jr.
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Quantity Value Units Method Reference Comment
Δfgas34.23kcal/molN/AZaheeruddin and Lodhi, 1991Value computed using ΔfHliquid° value of 98.0 kj/mol from Zaheeruddin and Lodhi, 1991 and ΔvapH° value of 45.2 kj/mol from Scott, Berg, et al., 1967.; DRB
Δfgas25.88 ± 0.12kcal/molCcbScott, Berg, et al., 1967ALS

Condensed phase thermochemistry data

Go To: Top, Gas phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), 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
Δfliquid  CcbZaheeruddin and Lodhi, 1991uncertain value: 23.43 kcal/mol; ALS
Δfliquid15.1 ± 0.1kcal/molCcbScott, Berg, et al., 1967ALS
Quantity Value Units Method Reference Comment
Δcliquid  CcbZaheeruddin and Lodhi, 1991uncertain value: -570.425 kcal/mol; ALS
Δcliquid-562.07 ± 0.08kcal/molCcbScott, Berg, et al., 1967ALS
Δcliquid-561.6kcal/molCcbZimmerman and Geisenfelder, 1961ALS
Quantity Value Units Method Reference Comment
liquid37.390cal/mol*KN/AScott, Berg, et al., 1967DH

Constant pressure heat capacity of liquid

Cp,liquid (cal/mol*K) Temperature (K) Reference Comment
30.531298.15Scott, Berg, et al., 1967T = 11 to 365 K.; DH

Phase change data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Reaction thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), 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
TRC - Thermodynamics Research Center, NIST Boulder Laboratories, Chris Muzny director
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos
DH - Eugene S. Domalski and Elizabeth D. Hearing

Quantity Value Units Method Reference Comment
Tboil403. ± 1.KAVGN/AAverage of 15 values; Individual data points
Quantity Value Units Method Reference Comment
Tfus250.15KN/ARosso and Carbonnel, 1973Uncertainty assigned by TRC = 0.6 K; TRC
Tfus254.7KN/ATimmermans and Hennaut-Roland, 1955Uncertainty assigned by TRC = 0.5 K; TRC
Tfus249.7KN/AAnonymous, 1942Uncertainty assigned by TRC = 0.2 K; TRC
Tfus238.8KN/AMilazzo, 1941Uncertainty assigned by TRC = 0.4 K; TRC
Quantity Value Units Method Reference Comment
Ttriple249.7300KN/AScott, Berg, et al., 1967, 2Uncertainty assigned by TRC = 0.07 K; by extrapolation of 1/f to zero; TRC
Ttriple249.74KN/AHelm, Lanum, et al., 1958Uncertainty assigned by TRC = 0.03 K; measured in calorimeter at U.S. Bur. Mines, Bartlesville, OK; TRC
Ttriple249.74KN/AMcCullough and Waddington, 1957Uncertainty assigned by TRC = 0.06 K; IPTS-48, from freezing curve; TRC
Ttriple249.74KN/AMcCullough and Waddington, 1957Uncertainty assigned by TRC = 0.06 K; IPTS-48, from heating curve; TRC
Quantity Value Units Method Reference Comment
Tc639.8KN/AMajer and Svoboda, 1985 
Tc639.7KN/ACheng, McCoubrey, et al., 1962Uncertainty assigned by TRC = 1.5 K; extrapolated to zero time to correct for decomposition cal. vs NPL thermometer.; TRC
Tc625.15KN/AGlaser and Ruland, 1957Uncertainty assigned by TRC = 2. K; TRC
Quantity Value Units Method Reference Comment
Pc56.000atmN/AGlaser and Ruland, 1957Uncertainty assigned by TRC = 3.0000 atm; TRC
Quantity Value Units Method Reference Comment
Δvap10. ± 1.kcal/molAVGN/AAverage of 6 values; Individual data points

Enthalpy of vaporization

ΔvapH (kcal/mol) Temperature (K) Method Reference Comment
9.261403.N/AMajer and Svoboda, 1985 
10.2300.N/AKimizuka and Szydlowski, 1992Based on data from 285. - 329. K.; AC
10.2353.A,EB,IPStephenson and Malanowski, 1987Based on data from 338. - 440. K. See also Osborn and Douslin, 1968 and Scott, Berg, et al., 1967.; AC
10.0328.IEon, Pommier, et al., 1971Based on data from 313. - 373. K.; AC
10.0348.N/AStull, 1947Based on data from 333. - 373. K.; AC

Enthalpy of vaporization

ΔvapH = A exp(-βTr) (1 − Tr)β
    ΔvapH = Enthalpy of vaporization (at saturation pressure) (kcal/mol)
    Tr = reduced temperature (T / Tc)

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Temperature (K) A (kcal/mol) β Tc (K) Reference Comment
362. - 403.15.00.2964639.8Majer and Svoboda, 1985 

Antoine Equation Parameters

log10(P) = A − (B / (T + C))
    P = vapor pressure (atm)
    T = temperature (K)

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Temperature (K) A B C Reference Comment
333.4 - 373.55.315202074.447-9.186Eon, Pommier, et al., 1971Coefficents calculated by NIST from author's data.
338.82 - 439.264.421941506.877-62.155Osborn and Douslin, 1968 

Enthalpy of fusion

ΔfusH (kcal/mol) Temperature (K) Reference Comment
1.8900249.74Scott, Berg, et al., 1967DH
1.89249.7Domalski and Hearing, 1996AC

Entropy of fusion

ΔfusS (cal/mol*K) Temperature (K) Reference Comment
7.567249.74Scott, Berg, et al., 1967DH

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:


Reaction thermochemistry data

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, IR Spectrum, Mass spectrum (electron ionization), 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:
B - John E. Bartmess
M - Michael M. Meot-Ner (Mautner) and Sharon G. Lias
RCD - Robert C. Dunbar

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

pyrrolide anion + Hydrogen cation = Pyrrole

By formula: C4H4N- + H+ = C4H5N

Quantity Value Units Method Reference Comment
Δr359.54 ± 0.25kcal/molD-EAGianola, Ichino, et al., 2004gas phase; B
Δr358.6 ± 2.2kcal/molG+TSBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale; B
Δr359.6 ± 2.9kcal/molG+TSCumming and Kebarle, 1978gas phase; B
Δr358.6 ± 5.0kcal/molEIAEMuftakhov, Vasil'ev, et al., 1999gas phase; B
Quantity Value Units Method Reference Comment
Δr350.9 ± 2.0kcal/molIMREBartmess, Scott, et al., 1979gas phase; value altered from reference due to change in acidity scale; B
Δr351.8 ± 2.0kcal/molIMRECumming and Kebarle, 1978gas phase; B

CN- + Pyrrole = (CN- • Pyrrole)

By formula: CN- + C4H5N = (CN- • C4H5N)

Quantity Value Units Method Reference Comment
Δr23.4 ± 1.0kcal/molTDAsMeot-ner, 1988gas phase; B,M
Δr19.5 ± 3.5kcal/molIMRELarson and McMahon, 1987gas phase; B,M
Quantity Value Units Method Reference Comment
Δr27.1cal/mol*KPHPMSMeot-ner, 1988gas phase; M
Δr23.8cal/mol*KN/ALarson and McMahon, 1987gas phase; switching reaction,Thermochemical ladder(CN-)H2O, Entropy change calculated or estimated; Payzant, Yamdagni, et al., 1971; M
Quantity Value Units Method Reference Comment
Δr15.3 ± 1.0kcal/molTDAsMeot-ner, 1988gas phase; B
Δr12.3 ± 2.3kcal/molIMRELarson and McMahon, 1987gas phase; B,M

Fluorine anion + Pyrrole = (Fluorine anion • Pyrrole)

By formula: F- + C4H5N = (F- • C4H5N)

Quantity Value Units Method Reference Comment
Δr34.2 ± 2.0kcal/molIMRELarson and McMahon, 1983gas phase; B,M
Quantity Value Units Method Reference Comment
Δr25.5cal/mol*KN/ALarson and McMahon, 1983gas phase; switching reaction(F-)H2O, Entropy change calculated or estimated; Arshadi, Yamdagni, et al., 1970; M
Quantity Value Units Method Reference Comment
Δr26.6 ± 2.0kcal/molIMRELarson and McMahon, 1983gas phase; B,M

Chlorine anion + Pyrrole = (Chlorine anion • Pyrrole)

By formula: Cl- + C4H5N = (Cl- • C4H5N)

Quantity Value Units Method Reference Comment
Δr18.8 ± 2.0kcal/molIMRELarson and McMahon, 1984gas phase; B
Quantity Value Units Method Reference Comment
Δr11.8 ± 2.0kcal/molIMRELarson and McMahon, 1984gas phase; B
Δr14.00kcal/molTDEqFrench, Ikuta, et al., 1982gas phase; B

Free energy of reaction

ΔrG° (kcal/mol) T (K) Method Reference Comment
11.6421.PHPMSFrench, Ikuta, et al., 1982gas phase; M

HS- + Pyrrole = (HS- • Pyrrole)

By formula: HS- + C4H5N = (HS- • C4H5N)

Quantity Value Units Method Reference Comment
Δr23.0 ± 1.0kcal/molTDAsMeot-ner, 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr24.4cal/mol*KPHPMSMeot-ner, 1988gas phase; M
Quantity Value Units Method Reference Comment
Δr15.7 ± 1.0kcal/molTDAsMeot-ner, 1988gas phase; B

pyrrolide anion + Pyrrole = (pyrrolide anion • Pyrrole)

By formula: C4H4N- + C4H5N = (C4H4N- • C4H5N)

Quantity Value Units Method Reference Comment
Δr26.5 ± 1.0kcal/molTDAsMeot-ner, 1988, 2gas phase; B,M
Quantity Value Units Method Reference Comment
Δr35.2cal/mol*KPHPMSMeot-ner, 1988, 2gas phase; M
Quantity Value Units Method Reference Comment
Δr16.3 ± 1.0kcal/molTDAsMeot-ner, 1988, 2gas phase; B

MeCO2 anion + Pyrrole = (MeCO2 anion • Pyrrole)

By formula: C2H3O2- + C4H5N = (C2H3O2- • C4H5N)

Quantity Value Units Method Reference Comment
Δr24.0 ± 1.0kcal/molTDAsMeot-ner, 1988gas phase; B,M
Quantity Value Units Method Reference Comment
Δr25.1cal/mol*KPHPMSMeot-ner, 1988gas phase; M
Quantity Value Units Method Reference Comment
Δr16.5 ± 1.0kcal/molTDAsMeot-ner, 1988gas phase; B

(C4H5N+ • Pyrrole) + Pyrrole = (C4H5N+ • 2Pyrrole)

By formula: (C4H5N+ • C4H5N) + C4H5N = (C4H5N+ • 2C4H5N)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr13.8kcal/molPHPMSHiraoka, Takimoto, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
Δr29.2cal/mol*KPHPMSHiraoka, Takimoto, et al., 1987gas phase; M

C4H5N+ + Pyrrole = (C4H5N+ • Pyrrole)

By formula: C4H5N+ + C4H5N = (C4H5N+ • C4H5N)

Bond type: Charge transfer bond (positive ion)

Quantity Value Units Method Reference Comment
Δr16.5kcal/molPHPMSHiraoka, Takimoto, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
Δr20.3cal/mol*KPHPMSHiraoka, Takimoto, et al., 1987gas phase; M

(C4H6N+ • Pyrrole) + Pyrrole = (C4H6N+ • 2Pyrrole)

By formula: (C4H6N+ • C4H5N) + C4H5N = (C4H6N+ • 2C4H5N)

Quantity Value Units Method Reference Comment
Δr12.3kcal/molPHPMSHiraoka, Takimoto, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
Δr30.4cal/mol*KPHPMSHiraoka, Takimoto, et al., 1987gas phase; M

(pyrrolide anion • Pyrrole) + Pyrrole = (pyrrolide anion • 2Pyrrole)

By formula: (C4H4N- • C4H5N) + C4H5N = (C4H4N- • 2C4H5N)

Quantity Value Units Method Reference Comment
Δr17.1kcal/molPHPMSMeot-ner, 1988, 2gas phase; M
Quantity Value Units Method Reference Comment
Δr31.2cal/mol*KPHPMSMeot-ner, 1988, 2gas phase; M

C4H6N+ + Pyrrole = (C4H6N+ • Pyrrole)

By formula: C4H6N+ + C4H5N = (C4H6N+ • C4H5N)

Quantity Value Units Method Reference Comment
Δr16.8kcal/molPHPMSHiraoka, Takimoto, et al., 1987gas phase; M
Quantity Value Units Method Reference Comment
Δr24.7cal/mol*KPHPMSHiraoka, Takimoto, et al., 1987gas phase; M

(MeCO2 anion • Pyrrole) + Pyrrole = (MeCO2 anion • 2Pyrrole)

By formula: (C2H3O2- • C4H5N) + C4H5N = (C2H3O2- • 2C4H5N)

Quantity Value Units Method Reference Comment
Δr17.9kcal/molPHPMSMeot-ner, 1988gas phase; M
Quantity Value Units Method Reference Comment
Δr24.2cal/mol*KPHPMSMeot-ner, 1988gas phase; M

CH6N+ + Pyrrole = (CH6N+ • Pyrrole)

By formula: CH6N+ + C4H5N = (CH6N+ • C4H5N)

Quantity Value Units Method Reference Comment
Δr18.6kcal/molPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; M
Quantity Value Units Method Reference Comment
Δr21.0cal/mol*KPHPMSDeakyne and Meot-Ner (Mautner), 1985gas phase; M

CH3CONHCH(CH3)COOCH3 + Pyrrole = (CH3CONHCH(CH3)COOCH3 • Pyrrole)

By formula: C6H11NO3 + C4H5N = (C6H11NO3 • C4H5N)

Quantity Value Units Method Reference Comment
Δr24.0kcal/molPHPMSMeot-Ner (Mautner), 1988gas phase; M
Quantity Value Units Method Reference Comment
Δr32.1cal/mol*KPHPMSMeot-Ner (Mautner), 1988gas phase; M

(Iron ion (1+) • Pyrrole) + Pyrrole = (Iron ion (1+) • 2Pyrrole)

By formula: (Fe+ • C4H5N) + C4H5N = (Fe+ • 2C4H5N)

Quantity Value Units Method Reference Comment
Δr41.6kcal/molRAKGapeev and Yang, 2000RCD

(Chromium ion (1+) • Pyrrole) + Pyrrole = (Chromium ion (1+) • 2Pyrrole)

By formula: (Cr+ • C4H5N) + C4H5N = (Cr+ • 2C4H5N)

Quantity Value Units Method Reference Comment
Δr34.9kcal/molRAKGapeev and Yang, 2000RCD

(Manganese ion (1+) • Pyrrole) + Pyrrole = (Manganese ion (1+) • 2Pyrrole)

By formula: (Mn+ • C4H5N) + C4H5N = (Mn+ • 2C4H5N)

Quantity Value Units Method Reference Comment
Δr27.0kcal/molRAKGapeev and Yang, 2000RCD

(Nickel ion (1+) • Pyrrole) + Pyrrole = (Nickel ion (1+) • 2Pyrrole)

By formula: (Ni+ • C4H5N) + C4H5N = (Ni+ • 2C4H5N)

Quantity Value Units Method Reference Comment
Δr47.0kcal/molRAKGapeev and Yang, 2000RCD

(Cobalt ion (1+) • Pyrrole) + Pyrrole = (Cobalt ion (1+) • 2Pyrrole)

By formula: (Co+ • C4H5N) + C4H5N = (Co+ • 2C4H5N)

Quantity Value Units Method Reference Comment
Δr46.4kcal/molRAKGapeev and Yang, 2000RCD

(Copper ion (1+) • Pyrrole) + Pyrrole = (Copper ion (1+) • 2Pyrrole)

By formula: (Cu+ • C4H5N) + C4H5N = (Cu+ • 2C4H5N)

Quantity Value Units Method Reference Comment
Δr44.0kcal/molRAKGapeev and Yang, 2000RCD

Lithium ion (1+) + Pyrrole = (Lithium ion (1+) • Pyrrole)

By formula: Li+ + C4H5N = (Li+ • C4H5N)

Quantity Value Units Method Reference Comment
Δr42.3 ± 4.0kcal/molCIDTHuang and Rodgers, 2002RCD

Sodium ion (1+) + Pyrrole = (Sodium ion (1+) • Pyrrole)

By formula: Na+ + C4H5N = (Na+ • C4H5N)

Quantity Value Units Method Reference Comment
Δr24.3 ± 1.1kcal/molCIDTHuang and Rodgers, 2002RCD

Potassium ion (1+) + Pyrrole = (Potassium ion (1+) • Pyrrole)

By formula: K+ + C4H5N = (K+ • C4H5N)

Quantity Value Units Method Reference Comment
Δr20.0 ± 1.0kcal/molCIDTHuang and Rodgers, 2002RCD

Vanadium ion (1+) + Pyrrole = (Vanadium ion (1+) • Pyrrole)

By formula: V+ + C4H5N = (V+ • C4H5N)

Quantity Value Units Method Reference Comment
Δr>41.kcal/molRAKGapeev and Yang, 2000RCD

Nickel ion (1+) + Pyrrole = (Nickel ion (1+) • Pyrrole)

By formula: Ni+ + C4H5N = (Ni+ • C4H5N)

Quantity Value Units Method Reference Comment
Δr>68.kcal/molRAKGapeev and Yang, 2000RCD

Tungsten ion (1+) + Pyrrole = (Tungsten ion (1+) • Pyrrole)

By formula: W+ + C4H5N = (W+ • C4H5N)

Quantity Value Units Method Reference Comment
Δr>50.kcal/molRAKGapeev and Yang, 2000RCD

Cobalt ion (1+) + Pyrrole = (Cobalt ion (1+) • Pyrrole)

By formula: Co+ + C4H5N = (Co+ • C4H5N)

Quantity Value Units Method Reference Comment
Δr>66.kcal/molRAKGapeev and Yang, 2000RCD

Molybdenum ion (1+) + Pyrrole = (Molybdenum ion (1+) • Pyrrole)

By formula: Mo+ + C4H5N = (Mo+ • C4H5N)

Quantity Value Units Method Reference Comment
Δr>69.kcal/molRAKGapeev and Yang, 2000RCD

Iron ion (1+) + Pyrrole = (Iron ion (1+) • Pyrrole)

By formula: Fe+ + C4H5N = (Fe+ • C4H5N)

Quantity Value Units Method Reference Comment
Δr54.0kcal/molRAKGapeev and Yang, 2000RCD

Chromium ion (1+) + Pyrrole = (Chromium ion (1+) • Pyrrole)

By formula: Cr+ + C4H5N = (Cr+ • C4H5N)

Quantity Value Units Method Reference Comment
Δr42.5kcal/molRAKGapeev and Yang, 2000RCD

Manganese ion (1+) + Pyrrole = (Manganese ion (1+) • Pyrrole)

By formula: Mn+ + C4H5N = (Mn+ • C4H5N)

Quantity Value Units Method Reference Comment
Δr42.3kcal/molRAKGapeev and Yang, 2000RCD

Magnesium ion (1+) + Pyrrole = (Magnesium ion (1+) • Pyrrole)

By formula: Mg+ + C4H5N = (Mg+ • C4H5N)

Quantity Value Units Method Reference Comment
Δr44.0kcal/molRAKGapeev and Yang, 2000RCD

Aluminum ion (1+) + Pyrrole = (Aluminum ion (1+) • Pyrrole)

By formula: Al+ + C4H5N = (Al+ • C4H5N)

Quantity Value Units Method Reference Comment
Δr44.0kcal/molRAKGapeev and Yang, 2000RCD

Copper ion (1+) + Pyrrole = (Copper ion (1+) • Pyrrole)

By formula: Cu+ + C4H5N = (Cu+ • C4H5N)

Quantity Value Units Method Reference Comment
Δr59.0kcal/molRAKGapeev and Yang, 2000RCD

IR Spectrum

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, Mass spectrum (electron ionization), References, Notes

Data compiled by: Coblentz Society, Inc.

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


Mass spectrum (electron ionization)

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, 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: NIST Mass Spectrometry Data Center, William E. Wallace, director

Spectrum

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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 U.S. BUREAU OF MINES, LARAMIE, WYO, USA
NIST MS number 34529

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References

Go To: Top, Gas phase thermochemistry data, Condensed phase thermochemistry data, Phase change data, Reaction thermochemistry data, IR Spectrum, Mass spectrum (electron ionization), Notes

Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Zaheeruddin and Lodhi, 1991
Zaheeruddin, M.; Lodhi, Z.H., Enthalpies of formation of some cyclic compounds, Phys. Chem. (Peshawar Pak.), 1991, 10, 111-118. [all data]

Scott, Berg, et al., 1967
Scott, D.W.; Berg, W.T.; Hossenlopp, I.A.; Hubbard, W.N.; Messerly, J.F.; Todd, S.S.; Douslin, D.R.; McCullough, J.P.; Waddington, G., Pyrrole: Chemical thermodynamic properties, J. Phys. Chem., 1967, 71, 2263-2270. [all data]

Zimmerman and Geisenfelder, 1961
Zimmerman, H.; Geisenfelder, H., Uber die Mesomerieenergie von Azolen, Z. Electrochem., 1961, 65, 368-371. [all data]

Rosso and Carbonnel, 1973
Rosso, M.J.-C.; Carbonnel, L., Hydrates + cubic clathrates generated by the nitrogenous meterocycles: the binary systems water + propylene imine and water + pyrrole, C. R. Seances Acad. Sci., Ser. C, 1973, 277, 259. [all data]

Timmermans and Hennaut-Roland, 1955
Timmermans, J.; Hennaut-Roland, M., Work of the International Bureau of Physical-Chemical Standards. IX. The Physical Constants of Twenty Organic Compounds, J. Chim. Phys. Phys.-Chim. Biol., 1955, 52, 223. [all data]

Anonymous, 1942
Anonymous, R., , Am. Pet. Inst. Res. Proj. 6, Natl. Bur. Stand., 1942. [all data]

Milazzo, 1941
Milazzo, G., Boll. Sci. Facolta Chim. Ind. Bologna, 1941, 94. [all data]

Scott, Berg, et al., 1967, 2
Scott, D.W.; Berg, W.T.; Hossenlopp, I.A.; Hubbard, W.N.; Messerly, J.F.; Todd, S.S.; Douslin, D.R.; McCullough, J.P.; Waddington, G., Pyrrole: Chemical Thermodynamic Properties, J. Phys. Chem., 1967, 71, 2263. [all data]

Helm, Lanum, et al., 1958
Helm, R.V.; Lanum, W.J.; Cook, G.L.; Ball, J.S., Purification and Properties of Pyrrole, Pyrrolidine, Pyridine and 2-Methylpyridine, J. Phys. Chem., 1958, 62, 858. [all data]

McCullough and Waddington, 1957
McCullough, J.P.; Waddington, G., Melting-point purity determinations: limitations as evidenced by calorimetric studies in the melting region, Anal. Chim. Acta, 1957, 17, 80. [all data]

Majer and Svoboda, 1985
Majer, V.; Svoboda, V., Enthalpies of Vaporization of Organic Compounds: A Critical Review and Data Compilation, Blackwell Scientific Publications, Oxford, 1985, 300. [all data]

Cheng, McCoubrey, et al., 1962
Cheng, D.C.H.; McCoubrey, J.C.; Phillips, D.G., Critical Temperatures of Some Organic Cyclic Compounds, Trans. Faraday Soc., 1962, 58, 224. [all data]

Glaser and Ruland, 1957
Glaser, F.; Ruland, H., Untersuchungsen über dampfdruckkurven und kritische daten einiger technisch wichtiger organischer substanzen, Chem. Ing. Techn., 1957, 29, 772. [all data]

Kimizuka and Szydlowski, 1992
Kimizuka, Wieslawa; Szydlowski, Jerzy, Vapor pressure isotope effect of n-deuterated pyrrole, Fluid Phase Equilibria, 1992, 77, 261-267, https://doi.org/10.1016/0378-3812(92)85107-J . [all data]

Stephenson and Malanowski, 1987
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Notes

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