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All results from a given calculation for C4H6 (Methylenecyclopropane)

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-155.474466
Energy at 298.15K-155.480227
HF Energy-154.901846
Nuclear repulsion energy109.362756
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 3224 3028 12.91      
2 A1 3208 3013 6.89      
3 A1 1862 1749 1.63      
4 A1 1534 1441 0.07      
5 A1 1488 1398 0.20      
6 A1 1086 1020 8.20      
7 A1 1080 1014 2.75      
8 A1 760 714 6.10      
9 A2 3297 3097 0.00      
10 A2 1195 1123 0.00      
11 A2 982 923 0.00      
12 A2 632 593 0.00      
13 B1 3308 3107 9.26      
14 B1 1123 1055 2.91      
15 B1 893 838 52.89      
16 B1 776 729 1.73      
17 B1 261 245 4.67      
18 B2 3325 3122 9.20      
19 B2 3206 3011 10.27      
20 B2 1499 1408 1.06      
21 B2 1171 1100 7.76      
22 B2 1106 1039 3.49      
23 B2 935 878 15.37      
24 B2 359 337 0.56      

Unscaled Zero Point Vibrational Energy (zpe) 19155.4 cm-1
Scaled (by 0.9392) Zero Point Vibrational Energy (zpe) 17990.7 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 MP2=FULL/6-31+G**
ABC
0.65375 0.22893 0.18181

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 1.642
C2 0.000 0.000 0.314
H3 0.000 0.926 2.199
H4 0.000 -0.926 2.199
C5 0.000 0.770 -0.932
C6 0.000 -0.770 -0.932
H7 0.912 1.267 -1.236
H8 -0.912 1.267 -1.236
H9 -0.912 -1.267 -1.236
H10 0.912 -1.267 -1.236

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10
C11.32781.08121.08122.68662.68663.27403.27403.27403.2740
C21.32782.10072.10071.46481.46482.19992.19992.19992.1999
H31.08122.10071.85263.13543.56153.57073.57074.17684.1768
H41.08122.10071.85263.56153.13544.17684.17683.57073.5707
C52.68661.46483.13543.56151.54011.08211.08212.25262.2526
C62.68661.46483.56153.13541.54012.25262.25261.08211.0821
H73.27402.19993.57074.17681.08212.25261.82353.12232.5345
H83.27402.19993.57074.17681.08212.25261.82352.53453.1223
H93.27402.19994.17683.57072.25261.08213.12232.53451.8235
H103.27402.19994.17683.57072.25261.08212.53453.12231.8235

picture of Methylenecyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 148.284 C1 C2 C6 148.284
C2 C1 H3 121.048 C2 C1 H4 121.048
C2 C5 C6 58.284 C2 C5 H7 118.719
C2 C5 H8 118.719 C2 C6 C5 58.284
C2 C6 H9 118.719 C2 C6 H10 118.719
H3 C1 H4 117.903 C5 C2 C6 63.431
C5 C6 H9 117.355 C5 C6 H10 117.355
C6 C5 H7 117.355 C6 C5 H8 117.355
H7 C5 H8 114.829 H9 C6 H10 114.829
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability