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

using model chemistry: B3LYP/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 B3LYP/6-311G*
 hartrees
Energy at 0K-194.064386
Energy at 298.15K-194.070621
Nuclear repulsion energy160.095449
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/6-311G*
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 3199 3091 6.14      
2 A 3191 3083 68.26      
3 A 3178 3071 2.56      
4 A 3091 2987 41.76      
5 A 1605 1550 5.54      
6 A 1486 1436 2.24      
7 A 1296 1253 0.85      
8 A 1205 1165 1.22      
9 A 1111 1074 1.89      
10 A 1035 1000 1.80      
11 A 964 932 3.52      
12 A 859 830 3.48      
13 A 804 777 0.10      
14 A 734 709 70.48      
15 A 422 408 7.52      
16 A 3182 3075 27.52      
17 A 3162 3056 10.36      
18 A 1315 1271 23.26      
19 A 1225 1184 0.12      
20 A 1085 1049 5.24      
21 A 1045 1010 0.01      
22 A 1042 1007 7.42      
23 A 944 912 4.78      
24 A 884 854 8.12      
25 A 832 804 1.43      
26 A 783 757 34.17      
27 A 455 440 1.48      

Unscaled Zero Point Vibrational Energy (zpe) 20067.6 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 19391.3 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/6-311G*
ABC
0.36397 0.21630 0.17366

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.267 1.058 0.671
C2 -0.267 1.058 -0.671
C3 -0.267 -0.461 0.762
C4 -0.267 -0.461 -0.762
C5 0.924 -1.016 0.000
H6 -0.125 1.830 1.420
H7 -0.125 1.830 -1.420
H8 -0.887 -1.081 1.397
H9 -0.887 -1.081 -1.397
H10 1.863 -0.470 0.000
H11 1.025 -2.100 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.34101.52162.08782.48401.08522.23322.34313.03932.70603.4774
C21.34102.08781.52162.48402.23321.08523.03932.34312.70603.4774
C31.52162.08781.52391.51892.38733.16681.08302.33052.26222.2218
C42.08781.52161.52391.51893.16682.38732.33051.08302.26222.2218
C52.48402.48401.51891.51893.34893.34892.28802.28801.08621.0885
H61.08522.23322.38733.16683.34892.84083.00924.12233.35534.3336
H72.23321.08523.16682.38733.34892.84084.12233.00923.35534.3336
H82.34313.03931.08302.33052.28803.00924.12232.79443.14432.5776
H93.03932.34312.33051.08302.28804.12233.00922.79443.14432.5776
H102.70602.70602.26222.26221.08623.35533.35533.14433.14431.8325
H113.47743.47742.22182.22181.08854.33364.33362.57762.57761.8325

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 93.446 C1 C2 H7 133.709
C1 C3 C4 86.554 C1 C3 C5 109.563
C1 C3 H8 127.395 C2 C1 C3 93.446
C2 C1 H6 133.709 C2 C4 C3 86.554
C2 C4 C5 109.563 C2 C4 H9 127.395
C3 C1 H6 131.917 C3 C4 C5 59.890
C3 C4 H9 125.913 C3 C5 C4 60.219
C3 C5 H10 119.611 C3 C5 H11 115.901
C4 C2 H7 131.917 C4 C3 C5 59.890
C4 C3 H8 125.913 C4 C5 H10 119.611
C4 C5 H11 115.901 C5 C3 H8 122.233
C5 C4 H9 122.233 H10 C5 H11 114.839
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.175     -0.242
2 C -0.175     -0.242
3 C -0.218     0.023
4 C -0.218     0.023
5 C -0.403     -0.427
6 H 0.182     0.174
7 H 0.182     0.174
8 H 0.203     0.086
9 H 0.203     0.086
10 H 0.211     0.181
11 H 0.211     0.163


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.138 -0.370 0.000 0.395
CHELPG        
AIM        
ESP 0.143 -0.366 0.000 0.393


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.689 0.859 0.000
y 0.859 -28.481 0.000
z 0.000 0.000 -29.975
Traceless
 xyz
x -2.461 0.859 0.000
y 0.859 2.351 0.000
z 0.000 0.000 0.110
Polar
3z2-r20.220
x2-y2-3.209
xy0.859
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.984 -0.473 0.000
y -0.473 8.069 0.000
z 0.000 0.000 7.587


<r2> (average value of r2) Å2
<r2> 87.868
(<r2>)1/2 9.374