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

using model chemistry: B3LYP/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-194.042375
Energy at 298.15K-194.048613
Nuclear repulsion energy159.879474
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/6-31+G**
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 3219 3104 10.15      
2 A 3209 3094 41.09      
3 A 3193 3079 4.49      
4 A 3103 2992 34.56      
5 A 1603 1546 9.91      
6 A 1482 1429 2.28      
7 A 1296 1250 1.09      
8 A 1204 1161 1.09      
9 A 1113 1073 2.07      
10 A 1037 1000 2.06      
11 A 965 930 4.50      
12 A 865 834 2.88      
13 A 806 777 0.20      
14 A 738 712 79.58      
15 A 424 408 7.58      
16 A 3201 3086 22.45      
17 A 3185 3071 4.21      
18 A 1318 1270 22.88      
19 A 1227 1183 0.02      
20 A 1087 1048 4.12      
21 A 1041 1004 6.40      
22 A 1041 1003 3.33      
23 A 947 913 4.29      
24 A 886 855 8.35      
25 A 828 798 1.16      
26 A 784 756 34.24      
27 A 452 436 1.04      

Unscaled Zero Point Vibrational Energy (zpe) 20125.3 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 19404.8 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/6-31+G**
ABC
0.36228 0.21605 0.17330

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.268 1.058 0.674
C2 -0.268 1.058 -0.674
C3 -0.268 -0.461 0.762
C4 -0.268 -0.461 -0.762
C5 0.927 -1.015 0.000
H6 -0.131 1.830 1.425
H7 -0.131 1.830 -1.425
H8 -0.882 -1.083 1.404
H9 -0.882 -1.083 -1.404
H10 1.866 -0.464 0.000
H11 1.030 -2.100 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.34721.52192.09022.48591.08592.24052.34423.04612.70593.4805
C21.34722.09021.52192.48592.24051.08593.04612.34422.70593.4805
C31.52192.09021.52381.52172.38893.17031.08452.33562.26562.2253
C42.09021.52191.52381.52173.17032.38892.33561.08452.26562.2253
C52.48592.48591.52171.52173.35283.35282.29122.29121.08821.0902
H61.08592.24052.38893.17033.35282.85073.00824.12973.35784.3384
H72.24051.08593.17032.38893.35282.85074.12973.00823.35784.3384
H82.34423.04611.08452.33562.29123.00824.12972.80803.14722.5812
H93.04612.34422.33561.08452.29124.12973.00822.80803.14722.5812
H102.70592.70592.26562.26561.08823.35783.35783.14723.14721.8373
H113.48053.48052.22532.22531.09024.33844.33842.58122.58121.8373

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 93.326 C1 C2 H7 133.810
C1 C3 C4 86.674 C1 C3 C5 109.520
C1 C3 H8 127.361 C2 C1 C3 93.326
C2 C1 H6 133.810 C2 C4 C3 86.674
C2 C4 C5 109.520 C2 C4 H9 127.361
C3 C1 H6 131.996 C3 C4 C5 59.955
C3 C4 H9 126.302 C3 C5 C4 60.091
C3 C5 H10 119.541 C3 C5 H11 115.873
C4 C2 H7 131.996 C4 C3 C5 59.955
C4 C3 H8 126.302 C4 C5 H10 119.541
C4 C5 H11 115.873 C5 C3 H8 122.180
C5 C4 H9 122.180 H10 C5 H11 115.007
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.134     -0.241
2 C -0.134     -0.241
3 C -0.095     0.039
4 C -0.095     0.039
5 C -0.348     -0.388
6 H 0.122     0.167
7 H 0.122     0.167
8 H 0.137     0.074
9 H 0.137     0.074
10 H 0.148     0.165
11 H 0.142     0.148


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.180 -0.458 0.000 0.492
CHELPG        
AIM        
ESP 0.171 -0.428 0.000 0.461


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.092 0.826 0.000
y 0.826 -28.965 0.000
z 0.000 0.000 -30.199
Traceless
 xyz
x -2.510 0.826 0.000
y 0.826 2.180 0.000
z 0.000 0.000 0.330
Polar
3z2-r20.660
x2-y2-3.127
xy0.826
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.015 -0.554 0.000
y -0.554 8.644 0.000
z 0.000 0.000 8.308


<r2> (average value of r2) Å2
<r2> 88.265
(<r2>)1/2 9.395