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All results from a given calculation for C4H6 (Methylenecyclopropane)

using model chemistry: MP2=FULL/aug-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=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-155.684097
Energy at 298.15K-155.689865
HF Energy-154.943913
Nuclear repulsion energy109.884208
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/aug-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 3182 3028 9.30      
2 A1 3173 3019 5.75      
3 A1 1847 1758 3.59      
4 A1 1502 1429 0.24      
5 A1 1461 1390 0.79      
6 A1 1079 1027 4.46      
7 A1 1015 966 4.69      
8 A1 754 717 4.85      
9 A2 3241 3084 0.00      
10 A2 1173 1116 0.00      
11 A2 960 913 0.00      
12 A2 620 590 0.00      
13 B1 3258 3100 4.77      
14 B1 1101 1048 2.96      
15 B1 946 900 40.84      
16 B1 753 716 2.22      
17 B1 290 276 4.59      
18 B2 3254 3095 5.37      
19 B2 3162 3009 7.23      
20 B2 1459 1388 2.74      
21 B2 1153 1097 6.60      
22 B2 1050 999 0.63      
23 B2 923 879 16.18      
24 B2 349 332 0.29      

Unscaled Zero Point Vibrational Energy (zpe) 18852.1 cm-1
Scaled (by 0.9514) Zero Point Vibrational Energy (zpe) 17935.9 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/aug-cc-pVTZ
ABC
0.65799 0.23170 0.18388

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.649
C2 0.000 0.000 0.305
H3 0.000 0.895 2.167
H4 0.000 -0.895 2.167
C5 0.000 0.747 -0.891
C6 0.000 -0.747 -0.891
H7 0.917 0.928 -1.343
H8 -0.917 0.928 -1.343
H9 -0.917 -0.928 -1.343
H10 0.917 -0.928 -1.343

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10
C11.34381.03381.03382.64792.64793.26433.26433.26433.2643
C21.34382.06542.06541.41061.41062.10222.10222.10222.1022
H31.03382.06541.78963.06153.47103.62803.62804.05994.0599
H41.03382.06541.78963.47103.06154.05994.05993.62803.6280
C52.64791.41063.06153.47101.49471.03821.03821.96251.9625
C62.64791.41063.47103.06151.49471.96251.96251.03821.0382
H73.26432.10223.62804.05991.03821.96251.83412.60901.8555
H83.26432.10223.62804.05991.03821.96251.83411.85552.6090
H93.26432.10224.05993.62801.96251.03822.60901.85551.8341
H103.26432.10224.05993.62801.96251.03821.85552.60901.8341

picture of Methylenecyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 148.007 C1 C2 C6 148.007
C2 C1 H3 120.054 C2 C1 H4 120.054
C2 C5 C6 58.007 C2 C5 H7 117.474
C2 C5 H8 117.474 C2 C6 C5 58.007
C2 C6 H9 117.474 C2 C6 H10 117.474
H3 C1 H4 119.891 C5 C2 C6 63.985
C5 C6 H9 100.005 C5 C6 H10 100.005
C6 C5 H7 100.005 C6 C5 H8 100.005
H7 C5 H8 124.086 H9 C6 H10 124.086
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability