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All results from a given calculation for C4H6 (Methylenecyclopropane)

using model chemistry: MP2/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-155.464846
Energy at 298.15K-155.470534
Nuclear repulsion energy108.335601
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/aug-cc-pVDZ
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 3170 3040 11.87      
2 A1 3156 3027 7.18      
3 A1 1827 1752 2.28      
4 A1 1479 1418 0.26      
5 A1 1438 1379 0.38      
6 A1 1061 1017 4.50      
7 A1 1011 969 3.74      
8 A1 738 707 4.85      
9 A2 3247 3114 0.00      
10 A2 1155 1108 0.00      
11 A2 946 907 0.00      
12 A2 606 581 0.00      
13 B1 3259 3125 8.28      
14 B1 1081 1036 3.78      
15 B1 916 879 40.58      
16 B1 743 712 1.66      
17 B1 263 252 5.07      
18 B2 3273 3139 7.57      
19 B2 3153 3023 9.47      
20 B2 1439 1380 1.80      
21 B2 1137 1090 5.89      
22 B2 1042 999 0.82      
23 B2 910 873 15.31      
24 B2 348 334 0.29      

Unscaled Zero Point Vibrational Energy (zpe) 18697.8 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 17931.2 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/aug-cc-pVDZ
ABC
0.64040 0.22496 0.17862

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.656
C2 0.000 0.000 0.316
H3 0.000 0.938 2.218
H4 0.000 -0.938 2.218
C5 0.000 0.778 -0.941
C6 0.000 -0.778 -0.941
H7 0.924 1.277 -1.245
H8 -0.924 1.277 -1.245
H9 -0.924 -1.277 -1.245
H10 0.924 -1.277 -1.245

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10
C11.33941.09361.09362.71052.71053.30183.30183.30183.3018
C21.33942.12022.12021.47841.47842.21902.21902.21902.2190
H31.09362.12021.87643.16233.59453.60023.60024.21364.2136
H41.09362.12021.87643.59453.16234.21364.21363.60023.6002
C52.71051.47843.16233.59451.55641.09331.09332.27392.2739
C62.71051.47843.59453.16231.55642.27392.27391.09331.0933
H73.30182.21903.60024.21361.09332.27391.84773.15242.5541
H83.30182.21903.60024.21361.09332.27391.84772.55413.1524
H93.30182.21904.21363.60022.27391.09333.15242.55411.8477
H103.30182.21904.21363.60022.27391.09332.55413.15241.8477

picture of Methylenecyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 148.238 C1 C2 C6 148.238
C2 C1 H3 120.917 C2 C1 H4 120.917
C2 C5 C6 58.238 C2 C5 H7 118.509
C2 C5 H8 118.509 C2 C6 C5 58.238
C2 C6 H9 118.509 C2 C6 H10 118.509
H3 C1 H4 118.166 C5 C2 C6 63.524
C5 C6 H9 117.148 C5 C6 H10 117.148
C6 C5 H7 117.148 C6 C5 H8 117.148
H7 C5 H8 115.344 H9 C6 H10 115.344
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability