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Experimental data for CH2C(CH3)OCH3 (1-Propene, 2-methoxy-)

22 02 02 11 45
Other names
1-Propene, 2-methoxy-; 2-Methoxy-1-propene; 2-Methoxypropene; Ether, isopropenyl methyl; Isopropenyl methyl ether; Methyl isopropenyl ether; ether; 2-methoxyprop-1-ene;
INChI INChIKey SMILES IUPAC name
InChI=1S/C4H8O/c1-4(2)5-3/h1H2,2-3H3 YOWQWFMSQCOSBA-UHFFFAOYSA-N C=C(OC)C 2-methoxyprop-1-ene
State Conformation
1A C1
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 -148.62   kJ mol-1 webbook
Hfg(0K) enthalpy of formation     kJ mol-1 webbook
Entropy (298.15K) entropy     J K-1 mol-1  
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity     kJ mol-1  
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 CH2C(CH3)OCH3 (1-Propene, 2-methoxy-).
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 CH2C(CH3)OCH3 (1-Propene, 2-methoxy-).
Product of moments of inertia moments of inertia
amu3Å6   0gm3 cm6
Geometric Data
picture of 1-Propene, 2-methoxy-

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
rCC 1.330   10 11 1987Kuchitsu(II/15)
rCC 1.501   6 10 1987Kuchitsu(II/15)
rCO 1.353   5 10 1987Kuchitsu(II/15) C has two C bonds
rCO 1.416   1 5 1987Kuchitsu(II/15) methyl C
rCH 1.087   11 12 1987Kuchitsu(II/15) C has =
aCCC 123.9 6 10 11 1987Kuchitsu(II/15)
aCCO 125.8 5 10 11 1987Kuchitsu(II/15)
aCOC 116 1 5 10 1987Kuchitsu(II/15)
aHCC 121.4 10 11 12 1987Kuchitsu(II/15)
aHCC 112.1 7 6 10 1987Kuchitsu(II/15)
aHCO 109.7 2 1 5 1987Kuchitsu(II/15)
d 11.9 1 5 10 11 1987Kuchitsu(II/15) torsion around =CO bond

Cartesians
Atom x (Å) y (Å) z (Å)

Atom - Atom Distances bond lengths
Distances in Å
 

Calculated geometries for CH2C(CH3)OCH3 (1-Propene, 2-methoxy-).

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
H-C 8
C-C 1
C=C 1
C-O 2

Connectivity
Atom 1 Atom 2
C1 H2
C1 H3
C1 H4
C1 O5
O5 C10
C6 H7
C6 H8
C6 H9
C6 C10
C10 C11
C11 H12
C11 H13
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
8.640       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 C1 True           C1 3 5
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 CH2C(CH3)OCH3 (1-Propene, 2-methoxy-).
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 C1 True       C1 3 5

Calculated electric quadrupole moments for CH2C(CH3)OCH3 (1-Propene, 2-methoxy-).

References
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squib reference DOI
1987Kuchitsu(II/15) Kuchitsu (ed.), Landolt-Bornstein: Group II: Atomic and Molecular Physics Volume 15: Structure Data of Free Polyatomic Molecules. Springer-Verlag, Berlin, 1987.  
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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