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All results from a given calculation for C4H6 (Methylenecyclopropane)

using model chemistry: MP2=FULL/6-311G*

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/6-311G*
 hartrees
Energy at 0K-155.525740
Energy at 298.15K-155.531484
HF Energy-154.913486
Nuclear repulsion energy109.192857
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/6-311G*
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 3175 3007 11.49      
2 A1 3162 2995 6.79      
3 A1 1852 1754 1.32      
4 A1 1512 1432 0.02      
5 A1 1466 1388 1.53      
6 A1 1081 1024 3.09      
7 A1 1056 1000 8.88      
8 A1 758 718 5.01      
9 A2 3248 3076 0.00      
10 A2 1192 1129 0.00      
11 A2 976 924 0.00      
12 A2 628 595 0.00      
13 B1 3260 3087 12.63      
14 B1 1117 1058 1.69      
15 B1 874 827 46.98      
16 B1 772 731 1.17      
17 B1 273 258 5.30      
18 B2 3272 3099 9.70      
19 B2 3159 2992 11.27      
20 B2 1479 1401 2.68      
21 B2 1158 1097 8.09      
22 B2 1081 1024 4.90      
23 B2 925 876 12.94      
24 B2 352 333 0.55      

Unscaled Zero Point Vibrational Energy (zpe) 18914.1 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 17913.5 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/6-311G*
ABC
0.65179 0.22838 0.18140

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.642
C2 0.000 0.000 0.316
H3 0.000 0.929 2.203
H4 0.000 -0.929 2.203
C5 0.000 0.770 -0.934
C6 0.000 -0.770 -0.934
H7 0.915 1.270 -1.238
H8 -0.915 1.270 -1.238
H9 -0.915 -1.270 -1.238
H10 0.915 -1.270 -1.238

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10
C11.32621.08541.08542.68862.68863.27803.27803.27803.2780
C21.32622.10372.10371.46811.46812.20562.20562.20562.2056
H31.08542.10371.85803.14113.56793.57723.57724.18524.1852
H41.08542.10371.85803.56793.14114.18524.18523.57723.5772
C52.68861.46813.14113.56791.54091.08591.08592.25692.2569
C62.68861.46813.56793.14111.54092.25692.25691.08591.0859
H73.27802.20563.57724.18521.08592.25691.82973.13052.5402
H83.27802.20563.57724.18521.08592.25691.82972.54023.1305
H93.27802.20564.18523.57722.25691.08593.13052.54021.8297
H103.27802.20564.18523.57722.25691.08592.54023.13051.8297

picture of Methylenecyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 148.345 C1 C2 C6 148.345
C2 C1 H3 121.138 C2 C1 H4 121.138
C2 C5 C6 58.345 C2 C5 H7 118.681
C2 C5 H8 118.681 C2 C6 C5 58.345
C2 C6 H9 118.681 C2 C6 H10 118.681
H3 C1 H4 117.723 C5 C2 C6 63.310
C5 C6 H9 117.394 C5 C6 H10 117.394
C6 C5 H7 117.394 C6 C5 H8 117.394
H7 C5 H8 114.812 H9 C6 H10 114.812
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability