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

using model chemistry: B3LYP/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 B3LYP/STO-3G
 hartrees
Energy at 0K-191.658479
Energy at 298.15K-191.664614
Nuclear repulsion energy158.015041
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/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 3522 3143 0.21      
2 A 3495 3119 0.12      
3 A 3478 3104 0.67      
4 A 3367 3005 0.60      
5 A 1738 1551 1.82      
6 A 1609 1435 0.46      
7 A 1401 1250 0.19      
8 A 1293 1154 2.09      
9 A 1169 1043 2.56      
10 A 1082 966 1.37      
11 A 1042 930 0.77      
12 A 1007 899 4.55      
13 A 871 777 0.17      
14 A 778 694 30.35      
15 A 446 398 2.73      
16 A 3466 3093 6.74      
17 A 3442 3072 4.79      
18 A 1417 1265 20.56      
19 A 1290 1151 0.01      
20 A 1211 1081 2.23      
21 A 1144 1021 0.47      
22 A 1114 994 1.05      
23 A 1017 908 3.12      
24 A 953 851 3.01      
25 A 895 799 0.10      
26 A 857 764 9.65      
27 A 495 442 1.55      

Unscaled Zero Point Vibrational Energy (zpe) 21798.7 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 19453.2 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/STO-3G
ABC
0.35237 0.21106 0.17000

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.276 1.069 0.675
C2 -0.276 1.069 -0.675
C3 -0.276 -0.477 0.771
C4 -0.276 -0.477 -0.771
C5 0.951 -1.008 0.000
H6 -0.159 1.845 1.442
H7 -0.159 1.845 -1.442
H8 -0.876 -1.103 1.441
H9 -0.876 -1.103 -1.441
H10 1.888 -0.435 0.000
H11 1.087 -2.099 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.34951.54852.11632.50481.09772.25762.38023.09102.72013.5140
C21.34952.11631.54852.50482.25761.09773.09102.38022.72013.5140
C31.54852.11631.54181.54332.41973.20961.09642.37592.29752.2547
C42.11631.54851.54181.54333.20962.41972.37591.09642.29752.2547
C52.50482.50481.54331.54333.38413.38412.32912.32911.09851.0994
H61.09772.25762.41973.20963.38412.88403.03434.18543.38664.3805
H72.25761.09773.20962.41973.38412.88404.18543.03433.38664.3805
H82.38023.09101.09642.37592.32913.03434.18542.88173.18832.6311
H93.09102.38022.37591.09642.32914.18543.03432.88173.18832.6311
H102.72012.72012.29752.29751.09853.38663.38663.18833.18831.8469
H113.51403.51402.25472.25471.09944.38054.38052.63112.63111.8469

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 93.559 C1 C2 H7 134.342
C1 C3 C4 86.441 C1 C3 C5 108.219
C1 C3 H8 127.461 C2 C1 C3 93.559
C2 C1 H6 134.342 C2 C4 C3 86.441
C2 C4 C5 108.219 C2 C4 H9 127.461
C3 C1 H6 131.488 C3 C4 C5 60.032
C3 C4 H9 127.667 C3 C5 C4 59.936
C3 C5 H10 119.901 C3 C5 H11 116.106
C4 C2 H7 131.488 C4 C3 C5 60.032
C4 C3 H8 127.667 C4 C5 H10 119.901
C4 C5 H11 116.106 C5 C3 H8 122.954
C5 C4 H9 122.954 H10 C5 H11 114.343
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.081      
2 C -0.081      
3 C -0.087      
4 C -0.087      
5 C -0.146      
6 H 0.076      
7 H 0.076      
8 H 0.083      
9 H 0.083      
10 H 0.084      
11 H 0.082      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.153 -0.309 0.000 0.345
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.772 0.631 0.000
y 0.631 -26.514 0.000
z 0.000 0.000 -28.078
Traceless
 xyz
x -1.476 0.631 0.000
y 0.631 1.911 0.000
z 0.000 0.000 -0.435
Polar
3z2-r2-0.870
x2-y2-2.258
xy0.631
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.678 -0.298 0.000
y -0.298 4.327 0.000
z 0.000 0.000 4.141


<r2> (average value of r2) Å2
<r2> 88.218
(<r2>)1/2 9.392