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All results from a given calculation for C4H6 (Methylenecyclopropane)

using model chemistry: MP3=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3=FULL/6-31G*
 hartrees
Energy at 0K-155.447058
Energy at 298.15K-155.452874
HF Energy-154.886567
Nuclear repulsion energy109.263362
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 MP3=FULL/6-31G*
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 3201 3004 10.42      
2 A1 3187 2990 8.08      
3 A1 1902 1785 1.19      
4 A1 1546 1451 0.01      
5 A1 1497 1405 0.35      
6 A1 1110 1041 0.10      
7 A1 1090 1023 8.24      
8 A1 774 726 5.13      
9 A2 3260 3059 0.00      
10 A2 1211 1136 0.00      
11 A2 990 929 0.00      
12 A2 640 601 0.00      
13 B1 3271 3069 16.71      
14 B1 1138 1068 0.86      
15 B1 918 862 41.27      
16 B1 788 739 0.82      
17 B1 290 272 3.24      
18 B2 3284 3081 12.06      
19 B2 3184 2988 12.21      
20 B2 1510 1417 0.96      
21 B2 1189 1116 7.75      
22 B2 1119 1050 3.93      
23 B2 941 883 11.84      
24 B2 363 340 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 19201.4 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 18016.7 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 MP3=FULL/6-31G*
ABC
0.65336 0.22867 0.18165

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.652
C2 0.000 0.000 0.307
H3 0.000 0.895 2.172
H4 0.000 -0.895 2.172
C5 0.000 0.746 -0.893
C6 0.000 -0.746 -0.893
H7 0.918 0.926 -1.347
H8 -0.918 0.926 -1.347
H9 -0.918 -0.926 -1.347
H10 0.918 -0.926 -1.347

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10
C11.34531.03551.03552.65272.65273.27053.27053.27053.2705
C21.34532.06902.06901.41341.41342.10632.10632.10632.1063
H31.03552.06901.79103.06903.47753.63703.63704.06774.0677
H41.03552.06901.79103.47753.06904.06774.06773.63703.6370
C52.65271.41343.06903.47751.49301.03971.03971.96141.9614
C62.65271.41343.47753.06901.49301.96141.96141.03971.0397
H73.27052.10633.63704.06771.03971.96141.83602.60851.8528
H83.27052.10633.63704.06771.03971.96141.83601.85282.6085
H93.27052.10634.06773.63701.96141.03972.60851.85281.8360
H103.27052.10634.06773.63701.96141.03971.85282.60851.8360

picture of Methylenecyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 148.120 C1 C2 C6 148.120
C2 C1 H3 120.139 C2 C1 H4 120.139
C2 C5 C6 58.120 C2 C5 H7 117.512
C2 C5 H8 117.512 C2 C6 C5 58.120
C2 C6 H9 117.512 C2 C6 H10 117.512
H3 C1 H4 119.721 C5 C2 C6 63.760
C5 C6 H9 99.965 C5 C6 H10 99.965
C6 C5 H7 99.965 C6 C5 H8 99.965
H7 C5 H8 124.006 H9 C6 H10 124.006
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability