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

using model chemistry: HF/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/STO-3G
 hartrees
Energy at 0K-190.377996
Energy at 298.15K-190.384587
Nuclear repulsion energy160.658425
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 HF/STO-3G
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 3793 3097 0.20      
2 A 3772 3080 0.12      
3 A 3749 3061 1.42      
4 A 3635 2968 2.23      
5 A 1959 1599 1.80      
6 A 1777 1451 0.66      
7 A 1588 1297 0.15      
8 A 1452 1186 1.29      
9 A 1292 1055 3.37      
10 A 1218 994 6.19      
11 A 1193 974 3.01      
12 A 1123 917 1.73      
13 A 982 802 0.19      
14 A 897 733 25.05      
15 A 504 412 1.43      
16 A 3735 3049 15.28      
17 A 3712 3031 10.40      
18 A 1590 1298 20.99      
19 A 1436 1173 0.01      
20 A 1379 1126 0.57      
21 A 1300 1062 0.35      
22 A 1246 1017 0.43      
23 A 1148 938 4.96      
24 A 1106 903 1.68      
25 A 1003 819 0.01      
26 A 959 783 9.03      
27 A 555 453 1.51      

Unscaled Zero Point Vibrational Energy (zpe) 24050.1 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 19636.9 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 HF/STO-3G
ABC
0.36623 0.21714 0.17556

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.270 1.055 0.659
C2 -0.270 1.055 -0.659
C3 -0.270 -0.474 0.754
C4 -0.270 -0.474 -0.754
C5 0.937 -0.991 0.000
H6 -0.178 1.819 1.418
H7 -0.178 1.819 -1.418
H8 -0.858 -1.085 1.425
H9 -0.858 -1.085 -1.425
H10 1.861 -0.427 0.000
H11 1.079 -2.065 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.31801.53212.08202.46501.08152.21552.34723.04382.67833.4628
C21.31802.08201.53212.46502.21551.08153.04382.34722.67833.4628
C31.53212.08201.50781.51392.38973.16041.08062.33742.26142.2182
C42.08201.53211.50781.51393.16042.38972.33741.08062.26142.2182
C52.46502.46501.51391.51393.33963.33962.29302.29301.08311.0839
H61.08152.21552.38973.16043.33962.83682.98254.12043.34924.3225
H72.21551.08153.16042.38973.33962.83684.12042.98253.34924.3225
H82.34723.04381.08062.33742.29302.98254.12042.84913.13932.5965
H93.04382.34722.33741.08062.29304.12042.98252.84913.13932.5965
H102.67832.67832.26142.26141.08313.34923.34923.13933.13931.8158
H113.46283.46282.21822.21821.08394.32254.32252.59652.59651.8158

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 93.552 C1 C2 H7 134.606
C1 C3 C4 86.448 C1 C3 C5 108.048
C1 C3 H8 127.037 C2 C1 C3 93.552
C2 C1 H6 134.606 C2 C4 C3 86.448
C2 C4 C5 108.048 C2 C4 H9 127.037
C3 C1 H6 131.452 C3 C4 C5 60.133
C3 C4 H9 128.363 C3 C5 C4 59.734
C3 C5 H10 120.185 C3 C5 H11 116.297
C4 C2 H7 131.452 C4 C3 C5 60.133
C4 C3 H8 128.363 C4 C5 H10 120.185
C4 C5 H11 116.297 C5 C3 H8 123.344
C5 C4 H9 123.344 H10 C5 H11 113.841
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.063      
2 C -0.063      
3 C -0.074      
4 C -0.074      
5 C -0.120      
6 H 0.061      
7 H 0.061      
8 H 0.068      
9 H 0.068      
10 H 0.068      
11 H 0.068      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.105 -0.220 0.000 0.244
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.060 0.542 0.000
y 0.542 -27.131 0.000
z 0.000 0.000 -28.460
Traceless
 xyz
x -1.265 0.542 0.000
y 0.542 1.629 0.000
z 0.000 0.000 -0.364
Polar
3z2-r2-0.728
x2-y2-1.929
xy0.542
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.567 -0.278 0.000
y -0.278 4.038 0.000
z 0.000 0.000 4.160


<r2> (average value of r2) Å2
<r2> 86.285
(<r2>)1/2 9.289