Cyclopropanecarboxaldehyde


Reaction thermochemistry 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: John E. Bartmess

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Individual Reactions

C4H5O- + Hydrogen cation = Cyclopropanecarboxaldehyde

By formula: C4H5O- + H+ = C4H6O

Quantity Value Units Method Reference Comment
Δr1631. ± 21.kJ/molG+TSBaschky, Peterson, et al., 1994gas phase; Between D2O and PhF. Cis and Trans anions do not interconvert and have same expt. acidity.
Quantity Value Units Method Reference Comment
Δr1598. ± 21.kJ/molIMRBBaschky, Peterson, et al., 1994gas phase; Between D2O and PhF. Cis and Trans anions do not interconvert and have same expt. acidity.

C4H5O- + Hydrogen cation = Cyclopropanecarboxaldehyde

By formula: C4H5O- + H+ = C4H6O

Quantity Value Units Method Reference Comment
Δr1572. ± 8.8kJ/molG+TSChou, Dahlke, et al., 1993gas phase; barrier for opening to CH2=C(CHO)CH2-: 29 kcal/mol.
Quantity Value Units Method Reference Comment
Δr1543. ± 8.4kJ/molIMREChou, Dahlke, et al., 1993gas phase; barrier for opening to CH2=C(CHO)CH2-: 29 kcal/mol.

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 by: John E. Bartmess

View reactions leading to C4H6O+ (ion structure unspecified)

De-protonation reactions

C4H5O- + Hydrogen cation = Cyclopropanecarboxaldehyde

By formula: C4H5O- + H+ = C4H6O

Quantity Value Units Method Reference Comment
Δr1631. ± 21.kJ/molG+TSBaschky, Peterson, et al., 1994gas phase; Between D2O and PhF. Cis and Trans anions do not interconvert and have same expt. acidity.
Quantity Value Units Method Reference Comment
Δr1598. ± 21.kJ/molIMRBBaschky, Peterson, et al., 1994gas phase; Between D2O and PhF. Cis and Trans anions do not interconvert and have same expt. acidity.

C4H5O- + Hydrogen cation = Cyclopropanecarboxaldehyde

By formula: C4H5O- + H+ = C4H6O

Quantity Value Units Method Reference Comment
Δr1572. ± 8.8kJ/molG+TSChou, Dahlke, et al., 1993gas phase; barrier for opening to CH2=C(CHO)CH2-: 29 kcal/mol.
Quantity Value Units Method Reference Comment
Δr1543. ± 8.4kJ/molIMREChou, Dahlke, et al., 1993gas phase; barrier for opening to CH2=C(CHO)CH2-: 29 kcal/mol.

IR 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.

Data compiled by: Coblentz Society, Inc.

Condensed Phase Spectrum

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IR spectrum
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Notice: Except where noted, spectra from this collection were measured on dispersive instruments, often in carefully selected solvents, and hence may differ in detail from measurements on FTIR instruments or in other chemical environments. More information on the manner in which spectra in this collection were collected can be found here.

Notice: Concentration information is not available for this spectrum and, therefore, molar absorptivity values cannot be derived.

Additional Data

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Owner COBLENTZ SOCIETY
Collection (C) 2018 copyright by the U.S. Secretary of Commerce
on behalf of the United States of America. All rights reserved.
Origin DOW CHEMICAL COMPANY
Source reference COBLENTZ NO. 10192
Date 1960/08/12
Name(s) cyclopropanecarbaldehyde
State SOLUTION (10% IN CCl4 FOR 3800-1333, 10% IN CS2 FOR 1333-450, AND 10% IN C6H12 FOR 450-200 CM-1)
Instrument PERKIN-ELMER 225
Path length 0.011, 0.011, 0.010 CM
SPECTRAL CONTAMINATION DUE TO CCl4 AROUND 1546 CM-1
Resolution 4
Sampling procedure TRANSMISSION
Data processing DIGITIZED BY NIST FROM HARD COPY (FROM TWO SEGMENTS)

This IR spectrum is from the Coblentz Society's evaluated infrared reference spectra collection.


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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Mass spectrum
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Additional Data

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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 Chemical Concepts
NIST MS number 162751

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References

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

Baschky, Peterson, et al., 1994
Baschky, M.C.; Peterson, K.C.; Kass, S.R., Stereospecificity in the gas phase. Formation and characterization of configurationally stable cyclopropyl anions, J. Am. Chem. Soc., 1994, 116, 16, 7218, https://doi.org/10.1021/ja00095a026 . [all data]

Chou, Dahlke, et al., 1993
Chou, P.K.; Dahlke, G.D.; Kass, S.R., Unimolecular Rearrangements of Carbanions in the Gas Phase .2. Cyclopropyl Anions, J. Chem. Soc. Chem. Comm., 1993, 115, 1, 315, https://doi.org/10.1021/ja00054a045 . [all data]


Notes

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