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All results from a given calculation for C5H6 (Bicyclo[2.1.0]pent-2-ene)

using model chemistry: B3LYP/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/aug-cc-pVTZ
 hartrees
Energy at 0K-194.096782
Energy at 298.15K-194.103047
HF Energy-194.096782
Nuclear repulsion energy160.508161
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 B3LYP/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 A' 3204 3100 4.51      
2 A' 3196 3092 39.31      
3 A' 3178 3075 5.65      
4 A' 3093 2993 32.84      
5 A' 1598 1546 9.14      
6 A' 1476 1428 2.55      
7 A' 1288 1246 0.92      
8 A' 1200 1161 0.90      
9 A' 1109 1073 1.78      
10 A' 1031 998 1.86      
11 A' 961 930 3.83      
12 A' 859 831 2.25      
13 A' 803 777 0.12      
14 A' 741 717 71.29      
15 A' 424 410 6.61      
16 A" 3188 3085 17.41      
17 A" 3170 3067 5.51      
18 A" 1312 1270 22.80      
19 A" 1226 1186 0.01      
20 A" 1090 1054 2.95      
21 A" 1043 1010 4.47      
22 A" 1037 1003 4.33      
23 A" 950 919 6.00      
24 A" 891 862 5.90      
25 A" 832 805 0.70      
26 A" 781 756 32.36      
27 A" 454 439 0.96      

Unscaled Zero Point Vibrational Energy (zpe) 20068.5 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 19416.3 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 B3LYP/aug-cc-pVTZ
ABC
0.36572 0.21754 0.17450

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.266 1.055 0.669
C2 -0.266 1.055 -0.669
C3 -0.266 -0.460 0.760
C4 -0.266 -0.460 -0.760
C5 0.923 -1.012 0.000
H6 -0.133 1.824 1.418
H7 -0.133 1.824 -1.418
H8 -0.879 -1.079 1.398
H9 -0.879 -1.079 -1.398
H10 1.857 -0.465 0.000
H11 1.025 -2.092 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.33851.51762.08272.47691.08122.22792.33653.03322.69613.4672
C21.33852.08271.51762.47692.22791.08123.03322.33652.69613.4672
C31.51762.08271.52011.51542.38033.15841.07932.32672.25572.2158
C42.08271.51761.52011.51543.15842.38032.32671.07932.25572.2158
C52.47692.47691.51541.51543.34173.34172.28122.28121.08311.0851
H61.08122.22792.38033.15843.34172.83502.99734.11193.34814.3229
H72.22791.08123.15842.38033.34172.83504.11192.99733.34814.3229
H82.33653.03321.07932.32672.28122.99734.11192.79503.13342.5700
H93.03322.33652.32671.07932.28124.11192.99732.79503.13342.5700
H102.69612.69612.25572.25571.08313.34813.34813.13343.13341.8280
H113.46723.46722.21582.21581.08514.32294.32292.57002.57001.8280

picture of Bicyclo[2.1.0]pent-2-ene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 93.429 C1 C2 H7 133.794
C1 C3 C4 86.571 C1 C3 C5 109.496
C1 C3 H8 127.430 C2 C1 C3 93.429
C2 C1 H6 133.794 C2 C4 C3 86.571
C2 C4 C5 109.496 C2 C4 H9 127.430
C3 C1 H6 131.953 C3 C4 C5 59.899
C3 C4 H9 126.202 C3 C5 C4 60.202
C3 C5 H10 119.546 C3 C5 H11 115.886
C4 C2 H7 131.953 C4 C3 C5 59.899
C4 C3 H8 126.202 C4 C5 H10 119.546
C4 C5 H11 115.886 C5 C3 H8 122.186
C5 C4 H9 122.186 H10 C5 H11 114.944
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability