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

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-193.993115
Energy at 298.15K-193.999367
Nuclear repulsion energy160.475255
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 B3PW91/6-311G*
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 3212 3092 4.96      
2 A 3203 3083 61.93      
3 A 3190 3071 2.42      
4 A 3100 2984 38.76      
5 A 1614 1554 5.72      
6 A 1481 1426 2.78      
7 A 1308 1260 1.26      
8 A 1212 1167 1.23      
9 A 1114 1073 2.03      
10 A 1039 1000 2.02      
11 A 969 933 4.23      
12 A 876 843 3.19      
13 A 808 777 0.32      
14 A 736 708 73.95      
15 A 421 405 7.89      
16 A 3195 3076 24.42      
17 A 3173 3054 9.80      
18 A 1319 1270 23.91      
19 A 1222 1176 0.14      
20 A 1082 1042 6.24      
21 A 1048 1009 0.12      
22 A 1040 1001 6.94      
23 A 955 920 2.95      
24 A 891 858 8.91      
25 A 830 799 4.59      
26 A 792 762 35.19      
27 A 456 439 1.34      

Unscaled Zero Point Vibrational Energy (zpe) 20142.2 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 19390.9 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 B3PW91/6-311G*
ABC
0.36471 0.21786 0.17487

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.267 1.053 0.670
C2 -0.267 1.053 -0.670
C3 -0.267 -0.460 0.760
C4 -0.267 -0.460 -0.760
C5 0.923 -1.008 0.000
H6 -0.125 1.824 1.422
H7 -0.125 1.824 -1.422
H8 -0.886 -1.084 1.393
H9 -0.886 -1.084 -1.393
H10 1.858 -0.454 0.000
H11 1.031 -2.092 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.34091.51612.08232.47281.08592.23432.33993.03492.69003.4684
C21.34092.08231.51612.47282.23431.08593.03492.33992.69003.4684
C31.51612.08231.51931.51402.38283.16201.08362.32532.25632.2195
C42.08231.51611.51931.51403.16202.38282.32531.08362.25632.2195
C52.47282.47281.51401.51403.33813.33812.28422.28421.08711.0893
H61.08592.23432.38283.16203.33812.84353.00694.11863.33834.3241
H72.23431.08593.16202.38283.33812.84354.11863.00693.33834.3241
H82.33993.03491.08362.32532.28423.00694.11862.78603.14112.5755
H93.03492.33992.32531.08362.28424.11863.00692.78603.14112.5755
H102.69002.69002.25632.25631.08713.33833.33833.14113.14111.8346
H113.46843.46842.21952.21951.08934.32414.32412.57552.57551.8346

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 93.374 C1 C2 H7 133.779
C1 C3 C4 86.626 C1 C3 C5 109.388
C1 C3 H8 127.544 C2 C1 C3 93.374
C2 C1 H6 133.779 C2 C4 C3 86.626
C2 C4 C5 109.388 C2 C4 H9 127.544
C3 C1 H6 131.921 C3 C4 C5 59.884
C3 C4 H9 125.765 C3 C5 C4 60.232
C3 C5 H10 119.422 C3 C5 H11 116.028
C4 C2 H7 131.921 C4 C3 C5 59.884
C4 C3 H8 125.765 C4 C5 H10 119.422
C4 C5 H11 116.028 C5 C3 H8 122.254
C5 C4 H9 122.254 H10 C5 H11 114.912
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.176      
2 C -0.176      
3 C -0.246      
4 C -0.246      
5 C -0.417      
6 H 0.190      
7 H 0.190      
8 H 0.214      
9 H 0.214      
10 H 0.227      
11 H 0.226      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.155 -0.394 0.000 0.423
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.431 0.878 0.000
y 0.878 -28.084 0.000
z 0.000 0.000 -29.671
Traceless
 xyz
x -2.553 0.878 0.000
y 0.878 2.467 0.000
z 0.000 0.000 0.086
Polar
3z2-r20.173
x2-y2-3.346
xy0.878
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 87.291
(<r2>)1/2 9.343