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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: MP2/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2v 1A1
Energy calculated at MP2/daug-cc-pVTZ
 hartrees
Energy at 0K-116.360505
Energy at 298.15K-116.363696
HF Energy-115.865815
Nuclear repulsion energy63.813832
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at MP2/daug-cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3332 3332 0.29 158.12 0.11 0.20
2 A1 3105 3105 51.10 144.96 0.11 0.19
3 A1 1682 1682 17.23 43.83 0.05 0.10
4 A1 1530 1530 0.81 11.84 0.16 0.27
5 A1 1163 1163 0.00 18.77 0.09 0.16
6 A1 932 932 4.78 4.52 0.54 0.70
7 A2 1025 1025 0.00 1.67 0.75 0.86
8 A2 842 842 0.00 0.52 0.75 0.86
9 B1 3186 3186 27.90 90.84 0.75 0.86
10 B1 1110 1110 1.24 0.14 0.75 0.86
11 B1 586 586 80.65 0.11 0.75 0.86
12 B2 3287 3287 1.54 76.03 0.75 0.86
13 B2 1066 1066 15.31 0.31 0.75 0.86
14 B2 1028 1028 37.81 0.05 0.75 0.86
15 B2 799 799 14.40 11.77 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12336.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12336.2 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2/daug-cc-pVTZ
ABC
1.00115 0.73386 0.46251

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/daug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.862
C2 0.000 0.650 -0.500
C3 0.000 -0.650 -0.500
H4 0.000 1.580 -1.037
H5 0.000 -1.580 -1.037
H6 0.913 0.000 1.449
H7 -0.913 0.000 1.449

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50881.50882.47002.47001.08531.0853
C21.50881.29911.07412.29322.24772.2477
C31.50881.29912.29321.07412.24772.2477
H42.47001.07412.29323.15973.08333.0833
H52.47002.29321.07413.15973.08333.0833
H61.08532.24772.24773.08333.08331.8263
H71.08532.24772.24773.08333.08331.8263

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.499 C1 C2 H4 145.494
C1 C3 C2 64.499 C1 C3 H5 145.494
C2 C1 C3 51.002 C2 C1 H6 119.197
C2 C1 H7 119.197 C2 C3 H5 150.007
C3 C1 H6 119.197 C3 C1 H7 119.197
C3 C2 H4 150.007 H6 C1 H7 114.569
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability