return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Experimental > One molecule all properties

Experimental data for C3H7NO (dimethylformamide)

22 02 02 11 45
Other names
Formamide, N,N-dimethyl-; DMFA; N-Formyldimethylamine; N,N-Dimethylformamide; Formyldimethylamine; Dimethylforamide; NSC-5356; U-4224; DMF;
INChI INChIKey SMILES IUPAC name
InChI=1S/C3H7NO/c1-4(2)3-5/h3H,1-2H3 ZMXDDKWLCZADIW-UHFFFAOYSA-N CN(C)C=O N,N-Dimethylformamide
State Conformation
1A' CS
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
Hfg(298.15K) enthalpy of formation -191.60 3.30 kJ mol-1 1970COX/PIL
Hfg(0K) enthalpy of formation   3.30 kJ mol-1 1970COX/PIL
Information can also be found for this species in the NIST Chemistry Webbook
Vibrational levels (cm-1) vibrations
Mode Number Symmetry Frequency Intensity Comment Description
Fundamental(cm-1) Harmonic(cm-1) Reference (km mol-1) unc. Reference

Calculated vibrational frequencies for C3H7NO (dimethylformamide).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment

Calculated rotational constants for C3H7NO (dimethylformamide).
Product of moments of inertia moments of inertia
amu3Å6   0gm3 cm6
Geometric Data
picture of dimethylformamide

Point Group C1


Internal coordinates
distances (r) in Å, angles (a) in degrees, dihedrals (d) in degrees
Description Value unc. Connectivity Reference Comment
Atom 1 Atom 2 Atom 3 Atom 4
rCH 1.112 0.003 4 7 1995Kuchitsu(II/23)
rCN 1.391 0.007 1 3 1995Kuchitsu(II/23)
rCN 1.453 0.004 3 4 1995Kuchitsu(II/23)
rCO 1.224 0.003 1 2 1995Kuchitsu(II/23)
aCNC 120.8 0.3 1 3 4 1995Kuchitsu(II/23)
aCNC 122.3 0.4 1 3 5 1995Kuchitsu(II/23)
aCNC 113.9 0.5 4 3 5 1995Kuchitsu(II/23)
aNCO 123.5 0.6 2 1 3 1995Kuchitsu(II/23)
aHCN 117 2.8 3 1 6 1995Kuchitsu(II/23)
dCNCO -16.3 4.5 2 1 3 4 1995Kuchitsu(II/23)
dCNCO -168.6 3.9 2 1 3 5 1995Kuchitsu(II/23)
aHCN 110.1 0.3 3 4 7 1995Kuchitsu(II/23)

Cartesians
Atom x (Å) y (Å) z (Å)

Atom - Atom Distances bond lengths
Distances in Å
 

Calculated geometries for C3H7NO (dimethylformamide).

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
C-N 3
C=O 1
H-C 7

Connectivity
Atom 1 Atom 2
C1 O2
C1 N3
C1 H6
N3 C4
N3 C5
C4 H7
C4 H8
C4 H9
C5 H10
C5 H11
C5 H12
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A'

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
9.130       webbook

Electron Affinity (eV)
Electron Affinity unc. reference
0.014   webbook
Dipole, Quadrupole and Polarizability
Electric dipole moment dipole
State Config State description Conf description Exp. min. Dipole (Debye) Reference comment Point Group Components
x y z total dipole quadrupole
1 1 1A' Cs False       3.820 NSRDS-NBS10 DR Cs 2 3
1 2 1A C1 True           C1 3 5
1 3 1A' CS methyls geared False           Cs 2 3
Experimental dipole measurement abbreviations: MW microwave; DT Dielectric with Temperature variation; DR Indirect (usually an upper limit); MB Molecular beam
Calculated electric dipole moments for C3H7NO (dimethylformamide).
Electric quadrupole moment quadrupole
State Config State description Conf description Exp. min. Quadrupole (D Å) Reference comment Point Group Components
xx yy zz dipole quadrupole
1 1 1A' Cs False       Cs 2 3
1 2 1A C1 True       C1 3 5
1 3 1A' CS methyls geared False       Cs 2 3

Calculated electric quadrupole moments for C3H7NO (dimethylformamide).
Electric dipole polarizability (Å3) polarizability
alpha unc. Reference
7.809   1998Gus/Rui:163

Calculated electric dipole polarizability for C3H7NO (dimethylformamide).

References
By selecting the following links, you may be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to [email protected].
squib reference DOI
1970COX/PIL J.D. Cox, G. Pilcher, "Thermochemistry of Organic and Organometallic Compounds" Academic Press, London, 1970 10.1002/bbpc.19700740727
1995Kuchitsu(II/23) Kuchitsu (ed.), Landolt-Bornstein: Group II: Molecules and Radicals Volume 23: Structure Data for Free Polyatomic Molecules. Springer. Berlin. 1995  
1998Gus/Rui:163 M Gussoni, R Rui, G Zerbi "Electronic and relaxation contribution to linear molecular polarizability. An analysis of the experimental values" J. Mol. Struct. 447 (1998) 163-215 10.1016/S0022-2860(97)00292-5
NSRDS-NBS10 R. D. Nelson Jr., D. R. Lide, A. A. Maryott "Selected Values of electric dipole moments for molecules in the gas phase" NSRDS-NBS10, 1967 10.6028/NBS.NSRDS.10
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

Got a better number? Please email us at [email protected]


Browse
PreviousNext