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All results from a given calculation for C5H8 (Cyclopentene)

using model chemistry: B97D3/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B97D3/6-31+G**
 hartrees
Energy at 0K-195.212190
Energy at 298.15K-195.221010
HF Energy-195.212190
Nuclear repulsion energy170.414617
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 B97D3/6-31+G**
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' 3159 3105 34.39      
2 A' 3058 3006 49.56      
3 A' 3018 2966 63.93      
4 A' 2997 2946 12.06      
5 A' 2954 2903 37.28      
6 A' 1637 1609 4.93      
7 A' 1480 1455 1.61      
8 A' 1455 1430 1.56      
9 A' 1297 1275 0.52      
10 A' 1204 1184 1.93      
11 A' 1106 1087 0.23      
12 A' 1045 1027 7.67      
13 A' 957 940 0.99      
14 A' 886 871 0.68      
15 A' 808 794 0.56      
16 A' 690 678 39.40      
17 A' 593 582 14.99      
18 A' 143 141 0.28      
19 A" 3134 3080 12.58      
20 A" 3010 2958 40.55      
21 A" 2955 2904 72.46      
22 A" 1460 1435 1.30      
23 A" 1350 1327 1.02      
24 A" 1293 1271 0.41      
25 A" 1276 1254 1.97      
26 A" 1195 1175 0.02      
27 A" 1125 1105 1.72      
28 A" 1017 999 2.00      
29 A" 929 913 0.04      
30 A" 902 886 7.75      
31 A" 874 859 3.66      
32 A" 763 750 0.33      
33 A" 380 374 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 25074.0 cm-1
Scaled (by 0.9828) Zero Point Vibrational Energy (zpe) 24642.8 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 B97D3/6-31+G**
ABC
0.24184 0.23887 0.13046

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.280 -1.204 0.000
C2 -0.072 -0.330 1.237
C3 -0.072 -0.330 -1.237
C4 -0.072 1.076 0.673
C5 -0.072 1.076 -0.673
H6 1.360 -1.410 0.000
H7 -0.240 -2.171 0.000
H8 -1.068 -0.579 1.644
H9 -1.068 -0.579 -1.644
H10 -0.113 1.967 1.299
H11 -0.113 1.967 -1.299
H12 0.643 -0.462 -2.064
H13 0.643 -0.462 2.064

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.55551.55552.40362.40361.09941.09772.21632.21633.44993.44992.22272.2227
C21.55552.47481.51542.37182.17912.22471.10463.05942.29843.42263.38011.1005
C31.55552.47482.37181.51542.17912.22473.05941.10463.42262.29841.10053.3801
C42.40361.51542.37181.34522.94713.32062.16293.01701.09022.16433.21952.1940
C52.40362.37181.51541.34522.94713.32063.01702.16292.16431.09022.19403.2195
H61.09942.17912.17912.94712.94711.77143.04793.04793.90733.90732.38142.3814
H71.09772.22472.22473.32063.32061.77142.43402.43404.33954.33952.82092.8209
H82.21631.10463.05942.16293.01703.04792.43403.28892.74154.00794.08551.7654
H92.21633.05941.10463.01702.16293.04792.43403.28894.00792.74151.76544.0855
H103.44992.29843.42261.09022.16433.90734.33952.74154.00792.59884.21732.6570
H113.44993.42262.29842.16431.09023.90734.33954.00792.74152.59882.65704.2173
H122.22273.38011.10053.21952.19402.38142.82094.08551.76544.21732.65704.1273
H132.22271.10053.38012.19403.21952.38142.82091.76544.08552.65704.21734.1273

picture of Cyclopentene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 103.070 C1 C2 H8 111.719
C1 C2 H13 112.502 C1 C3 C5 103.070
C1 C3 H9 111.719 C1 C3 H12 112.502
C2 C1 C3 105.423 C2 C1 H6 109.060
C2 C1 H7 112.937 C2 C4 C5 111.868
C2 C4 H10 122.984 C3 C1 H6 109.060
C3 C1 H7 112.937 C3 C5 C4 111.868
C3 C5 H11 122.984 C4 C2 H8 110.272
C4 C2 H13 113.069 C4 C5 H11 125.099
C5 C3 H9 110.272 C5 C3 H12 113.069
C5 C4 H10 125.099 H6 C1 H7 107.346
H8 C2 H13 106.326 H9 C3 H12 106.326
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.325      
2 C -0.351      
3 C -0.351      
4 C -0.074      
5 C -0.074      
6 H 0.158      
7 H 0.146      
8 H 0.156      
9 H 0.156      
10 H 0.130      
11 H 0.130      
12 H 0.150      
13 H 0.150      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.082 -0.268 0.000 0.281
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.035 -0.063 0.000
y -0.063 -31.707 0.000
z 0.000 0.000 -30.918
Traceless
 xyz
x -1.723 -0.063 0.000
y -0.063 0.269 0.000
z 0.000 0.000 1.453
Polar
3z2-r22.907
x2-y2-1.328
xy-0.063
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.888 -0.094 0.000
y -0.094 8.736 0.000
z 0.000 0.000 10.132


<r2> (average value of r2) Å2
<r2> 106.107
(<r2>)1/2 10.301