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

using model chemistry: BLYP/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at BLYP/6-31G
 hartrees
Energy at 0K-193.868706
Energy at 298.15K-193.874837
Nuclear repulsion energy157.651718
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 BLYP/6-31G
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 3171 3147 8.08      
2 A 3157 3133 59.27      
3 A 3136 3112 8.49      
4 A 3044 3021 36.62      
5 A 1539 1528 4.96      
6 A 1470 1458 1.07      
7 A 1241 1232 0.91      
8 A 1162 1153 2.43      
9 A 1090 1082 2.10      
10 A 1013 1005 1.14      
11 A 938 931 3.68      
12 A 839 833 3.95      
13 A 774 768 1.99      
14 A 725 720 63.77      
15 A 419 416 5.16      
16 A 3149 3126 23.06      
17 A 3128 3104 9.10      
18 A 1281 1271 20.14      
19 A 1209 1200 0.13      
20 A 1089 1081 4.13      
21 A 1027 1019 8.87      
22 A 1019 1012 0.01      
23 A 912 905 7.42      
24 A 841 835 4.78      
25 A 820 814 0.05      
26 A 752 746 24.05      
27 A 444 441 1.93      

Unscaled Zero Point Vibrational Energy (zpe) 19695.8 cm-1
Scaled (by 0.9924) Zero Point Vibrational Energy (zpe) 19546.1 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 BLYP/6-31G
ABC
0.35208 0.20999 0.16798

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.272 1.074 0.682
C2 -0.272 1.074 -0.682
C3 -0.272 -0.467 0.778
C4 -0.272 -0.467 -0.778
C5 0.941 -1.035 0.000
H6 -0.138 1.849 1.439
H7 -0.138 1.849 -1.439
H8 -0.887 -1.085 1.430
H9 -0.887 -1.085 -1.430
H10 1.887 -0.485 0.000
H11 1.046 -2.126 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.36431.54412.12272.52641.09122.26222.36663.08282.74903.5278
C21.36432.12271.54412.52642.26221.09123.08282.36662.74903.5278
C31.54412.12271.55531.54832.41183.20841.08942.37412.29462.2573
C42.12271.54411.55531.54833.20842.41182.37411.08942.29462.2573
C52.52642.52641.54831.54833.39823.39822.32152.32151.09431.0967
H61.09122.26222.41183.20843.39822.87853.02774.17163.40854.3901
H72.26221.09123.20842.41183.39822.87854.17163.02773.40854.3901
H82.36663.08281.08942.37412.32153.02774.17162.86093.17822.6207
H93.08282.36662.37411.08942.32154.17163.02772.86093.17822.6207
H102.74902.74902.29462.29461.09433.40853.40853.17823.17821.8439
H113.52783.52782.25732.25731.09674.39014.39012.62072.62071.8439

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 93.546 C1 C2 H7 133.934
C1 C3 C4 86.454 C1 C3 C5 109.569
C1 C3 H8 127.111 C2 C1 C3 93.546
C2 C1 H6 133.934 C2 C4 C3 86.454
C2 C4 C5 109.569 C2 C4 H9 127.111
C3 C1 H6 131.709 C3 C4 C5 59.850
C3 C4 H9 126.814 C3 C5 C4 60.300
C3 C5 H10 119.540 C3 C5 H11 116.130
C4 C2 H7 131.709 C4 C3 C5 59.850
C4 C3 H8 126.814 C4 C5 H10 119.540
C4 C5 H11 116.130 C5 C3 H8 122.359
C5 C4 H9 122.359 H10 C5 H11 114.621
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.062      
2 C -0.062      
3 C -0.162      
4 C -0.162      
5 C -0.224      
6 H 0.100      
7 H 0.100      
8 H 0.113      
9 H 0.113      
10 H 0.127      
11 H 0.119      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.131 -0.374 0.000 0.396
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.199 0.738 0.000
y 0.738 -28.291 0.000
z 0.000 0.000 -29.771
Traceless
 xyz
x -2.167 0.738 0.000
y 0.738 2.194 0.000
z 0.000 0.000 -0.026
Polar
3z2-r2-0.052
x2-y2-2.907
xy0.738
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> 89.839
(<r2>)1/2 9.478