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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: MP2=FULL/6-31+G**

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=FULL/6-31+G**
 hartrees
Energy at 0K-116.259123
Energy at 298.15K-116.262320
HF Energy-115.832900
Nuclear repulsion energy63.756912
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=FULL/6-31+G**
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 3391 3185 0.07 151.46 0.14 0.25
2 A1 3157 2965 53.53 111.16 0.17 0.28
3 A1 1717 1613 19.56 33.47 0.10 0.18
4 A1 1574 1479 2.45 13.04 0.24 0.39
5 A1 1193 1120 0.05 19.23 0.13 0.23
6 A1 955 897 5.67 5.45 0.44 0.61
7 A2 1039 975 0.00 4.55 0.75 0.86
8 A2 821 771 0.00 0.09 0.75 0.86
9 B1 3239 3042 37.63 92.60 0.75 0.86
10 B1 1143 1073 1.07 0.62 0.75 0.86
11 B1 558 524 102.86 0.16 0.75 0.86
12 B2 3346 3142 0.56 77.85 0.75 0.86
13 B2 1109 1042 26.20 0.06 0.75 0.86
14 B2 1063 999 35.12 0.07 0.75 0.86
15 B2 807 758 15.37 14.97 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12555.7 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 11792.3 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=FULL/6-31+G**
ABC
0.99705 0.73436 0.46161

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31+G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.861
C2 0.000 0.652 -0.499
C3 0.000 -0.652 -0.499
H4 0.000 1.581 -1.038
H5 0.000 -1.581 -1.038
H6 0.911 0.000 1.452
H7 -0.911 0.000 1.452

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50851.50852.47082.47081.08551.0855
C21.50851.30381.07372.29672.24962.2496
C31.50851.30382.29671.07372.24962.2496
H42.47081.07372.29673.16143.08653.0865
H52.47082.29671.07373.16143.08653.0865
H61.08552.24962.24963.08653.08651.8215
H71.08552.24962.24963.08653.08651.8215

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.396 C1 C2 H4 145.714
C1 C3 C2 64.396 C1 C3 H5 145.714
C2 C1 C3 51.207 C2 C1 H6 119.385
C2 C1 H7 119.385 C2 C3 H5 149.890
C3 C1 H6 119.385 C3 C1 H7 119.385
C3 C2 H4 149.890 H6 C1 H7 114.073
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability