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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-193.766205
Energy at 298.15K-193.772314
Nuclear repulsion energy159.410904
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 PBEPBEultrafine/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 3152 3100 5.39      
2 A 3144 3092 56.83      
3 A 3133 3081 1.94      
4 A 3045 2994 34.76      
5 A 1574 1548 4.97      
6 A 1449 1425 1.03      
7 A 1274 1253 1.16      
8 A 1183 1163 1.59      
9 A 1092 1074 1.46      
10 A 1019 1002 1.94      
11 A 948 933 3.28      
12 A 853 839 3.52      
13 A 790 777 0.37      
14 A 716 704 57.85      
15 A 407 400 5.35      
16 A 3138 3087 22.01      
17 A 3114 3063 10.37      
18 A 1288 1267 20.21      
19 A 1188 1168 0.07      
20 A 1053 1035 6.14      
21 A 1020 1003 0.97      
22 A 1008 991 3.18      
23 A 934 919 1.51      
24 A 852 838 8.48      
25 A 799 786 7.71      
26 A 772 760 24.28      
27 A 443 435 1.74      

Unscaled Zero Point Vibrational Energy (zpe) 19693.4 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 19368.4 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 PBEPBEultrafine/6-31G*
ABC
0.35918 0.21538 0.17272

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.270 1.059 0.677
C2 -0.270 1.059 -0.677
C3 -0.270 -0.461 0.764
C4 -0.270 -0.461 -0.764
C5 0.928 -1.015 0.000
H6 -0.114 1.833 1.437
H7 -0.114 1.833 -1.437
H8 -0.892 -1.092 1.404
H9 -0.892 -1.092 -1.404
H10 1.873 -0.457 0.000
H11 1.037 -2.109 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.35451.52192.09402.48861.09542.25642.35353.05642.71083.4924
C21.35452.09401.52192.48862.25641.09543.05642.35352.71083.4924
C31.52192.09401.52721.52482.39533.18201.09332.34162.27482.2372
C42.09401.52191.52721.52483.18202.39532.34161.09332.27482.2372
C52.48862.48861.52481.52483.35533.35532.30012.30011.09691.0992
H61.09542.25642.39533.18203.35532.87313.02634.15023.35514.3499
H72.25641.09543.18202.39533.35532.87314.15023.02633.35514.3499
H82.35353.05641.09332.34162.30013.02634.15022.80753.16542.5935
H93.05642.35352.34161.09332.30014.15023.02632.80753.16542.5935
H102.71082.71082.27482.27481.09693.35513.35513.16543.16541.8508
H113.49243.49242.23722.23721.09924.34994.34992.59352.59351.8508

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 93.252 C1 C2 H7 133.881
C1 C3 C4 86.748 C1 C3 C5 109.529
C1 C3 H8 127.537 C2 C1 C3 93.252
C2 C1 H6 133.881 C2 C4 C3 86.748
C2 C4 C5 109.529 C2 C4 H9 127.537
C3 C1 H6 131.773 C3 C4 C5 59.948
C3 C4 H9 125.842 C3 C5 C4 60.104
C3 C5 H10 119.478 C3 C5 H11 116.048
C4 C2 H7 131.773 C4 C3 C5 59.948
C4 C3 H8 125.842 C4 C5 H10 119.478
C4 C5 H11 116.048 C5 C3 H8 122.072
C5 C4 H9 122.072 H10 C5 H11 114.867
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.115      
2 C -0.115      
3 C -0.169      
4 C -0.169      
5 C -0.325      
6 H 0.131      
7 H 0.131      
8 H 0.154      
9 H 0.154      
10 H 0.166      
11 H 0.158      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.150 -0.393 0.000 0.420
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -30.842 0.817 0.000
y 0.817 -27.933 0.000
z 0.000 0.000 -29.409
Traceless
 xyz
x -2.171 0.817 0.000
y 0.817 2.193 0.000
z 0.000 0.000 -0.021
Polar
3z2-r2-0.043
x2-y2-2.909
xy0.817
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.423 -0.437 0.000
y -0.437 7.884 0.000
z 0.000 0.000 7.199


<r2> (average value of r2) Å2
<r2> 87.979
(<r2>)1/2 9.380