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All results from a given calculation for C5H7 (cyclopentenyl radical)

using model chemistry: B3LYP/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A2
Energy calculated at B3LYP/CEP-31G
 hartrees
Energy at 0K-32.341982
Energy at 298.15K-32.349158
HF Energy-32.341982
Nuclear repulsion energy85.313117
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/CEP-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 A1 3230 3128 20.36      
2 A1 3174 3074 10.24      
3 A1 3025 2929 64.16      
4 A1 1504 1456 7.58      
5 A1 1473 1426 0.62      
6 A1 1281 1241 1.85      
7 A1 1101 1066 4.51      
8 A1 1042 1009 0.77      
9 A1 907 878 5.71      
10 A1 798 773 0.04      
11 A2 3037 2941 0.00      
12 A2 1225 1186 0.00      
13 A2 992 961 0.00      
14 A2 649 628 0.00      
15 A2 93 90 0.00      
16 B1 3065 2968 114.42      
17 B1 1134 1098 4.75      
18 B1 983 952 7.88      
19 B1 808 782 1.85      
20 B1 625 605 118.27      
21 B1 412 399 10.54      
22 B2 3213 3111 21.96      
23 B2 3008 2912 51.67      
24 B2 1484 1437 1.97      
25 B2 1425 1380 3.88      
26 B2 1313 1272 11.01      
27 B2 1310 1268 0.00      
28 B2 1087 1053 1.31      
29 B2 915 886 18.31      
30 B2 714 691 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 22511.4 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 21800.1 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 B3LYP/CEP-31G
ABC
0.25208 0.24594 0.13059

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.296
C2 0.000 1.172 0.515
C3 0.000 -1.172 0.515
C4 0.000 0.785 -0.981
C5 0.000 -0.785 -0.981
H6 0.000 0.000 2.389
H7 0.000 2.244 0.715
H8 0.000 -2.244 0.715
H9 0.886 1.199 -1.500
H10 -0.886 1.199 -1.500
H11 0.886 -1.199 -1.500
H12 -0.886 -1.199 -1.500

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.40841.40842.40812.40811.09292.31832.31833.16873.16873.16873.1687
C21.40842.34411.54492.46312.21021.09103.42242.20142.20143.23563.2356
C31.40842.34412.46311.54492.21023.42241.09103.23563.23562.20142.2014
C42.40811.54492.46311.57003.45972.23763.47191.10731.10732.23432.2343
C52.40812.46311.54491.57003.45973.47192.23762.23432.23431.10731.1073
H61.09292.21022.21023.45973.45972.79962.79964.16504.16504.16504.1650
H72.31831.09103.42242.23763.47192.79964.48892.60502.60504.18974.1897
H82.31833.42241.09103.47192.23762.79964.48894.18974.18972.60502.6050
H93.16872.20143.23561.10732.23434.16502.60504.18971.77152.39872.9820
H103.16872.20143.23561.10732.23434.16502.60504.18971.77152.98202.3987
H113.16873.23562.20142.23431.10734.16504.18972.60502.39872.98201.7715
H123.16873.23562.20142.23431.10734.16504.18972.60502.98202.39871.7715

picture of cyclopentenyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 109.164 C1 C2 H7 135.737
C1 C3 C5 109.164 C1 C3 H8 135.737
C2 C1 C3 112.653 C2 C1 H6 123.673
C2 C4 C5 104.510 C2 C4 H9 111.128
C2 C4 H10 111.128 C3 C1 H6 123.673
C3 C5 C4 104.510 C3 C5 H11 111.128
C3 C5 H12 111.128 C4 C2 H7 115.100
C4 C5 H11 111.976 C4 C5 H12 111.976
C5 C3 H8 115.100 C5 C4 H9 111.976
C5 C4 H10 111.976 H9 C4 H10 106.242
H11 C5 H12 106.242
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.212      
2 C -0.357      
3 C -0.357      
4 C -0.240      
5 C -0.240      
6 H 0.288      
7 H 0.286      
8 H 0.286      
9 H 0.136      
10 H 0.136      
11 H 0.136      
12 H 0.136      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.501 0.501
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.698 0.000 0.000
y 0.000 -28.438 0.000
z 0.000 0.000 -29.689
Traceless
 xyz
x -3.635 0.000 0.000
y 0.000 2.756 0.000
z 0.000 0.000 0.879
Polar
3z2-r21.757
x2-y2-4.260
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.592 0.000 0.000
y 0.000 9.210 0.000
z 0.000 0.000 8.007


<r2> (average value of r2) Å2
<r2> 86.061
(<r2>)1/2 9.277