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All results from a given calculation for C5H8 (Bicyclo[1.1.1]pentane)

using model chemistry: wB97X-D/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at wB97X-D/CEP-31G
 hartrees
Energy at 0K-32.956091
Energy at 298.15K 
HF Energy-32.956091
Nuclear repulsion energy95.471361
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 wB97X-D/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' 3177 3177 0.01      
2 A1' 3093 3093 0.00      
3 A1' 1575 1575 0.00      
4 A1' 1169 1169 0.00      
5 A1' 924 924 0.00      
6 A1" 1007 1007 0.00      
7 A2' 3164 3164 0.00      
8 A2' 962 962 0.00      
9 A2" 3163 3163 148.53      
10 A2" 1282 1282 48.63      
11 A2" 869 869 12.65      
12 E' 3175 3175 102.49      
12 E' 3175 3175 101.95      
13 E' 3087 3087 117.89      
13 E' 3087 3087 117.58      
14 E' 1527 1527 2.99      
14 E' 1527 1527 3.00      
15 E' 1275 1275 1.31      
15 E' 1275 1275 1.31      
16 E' 1117 1117 0.04      
16 E' 1117 1117 0.04      
17 E' 917 917 3.62      
17 E' 917 917 3.63      
18 E' 549 549 0.60      
18 E' 549 549 0.59      
19 E" 1245 1245 0.00      
19 E" 1245 1245 0.00      
20 E" 1172 1172 0.00      
20 E" 1172 1172 0.00      
21 E" 1047 1047 0.00      
21 E" 1047 1047 0.00      
22 E" 814 814 0.00      
22 E" 814 814 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 26117.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 26117.7 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 wB97X-D/CEP-31G
ABC
0.23343 0.23343 0.20257

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-31G

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.960
C2 0.000 1.257 0.000
C3 1.089 -0.629 0.000
C4 -1.089 -0.629 0.000
C5 0.000 0.000 -0.960
H6 0.000 0.000 2.054
H7 0.000 0.000 -2.054
H8 0.908 1.878 0.000
H9 -0.908 1.878 0.000
H10 1.172 -1.726 0.000
H11 2.081 -0.152 0.000
H12 -2.081 -0.152 0.000
H13 -1.172 -1.726 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.58161.58161.58161.91931.09423.01362.29642.29642.29642.29642.29642.2964
C21.58162.17762.17761.58162.40812.40811.10031.10033.20502.51322.51323.2050
C31.58162.17762.17761.58162.40812.40812.51323.20501.10031.10033.20502.5132
C41.58162.17762.17761.58162.40812.40813.20502.51322.51323.20501.10031.1003
C51.91931.58161.58161.58163.01361.09422.29642.29642.29642.29642.29642.2964
H61.09422.40812.40812.40813.01364.10782.92762.92762.92762.92762.92762.9276
H73.01362.40812.40812.40811.09424.10782.92762.92762.92762.92762.92762.9276
H82.29641.10032.51323.20502.29642.92762.92761.81673.61352.34473.61354.1614
H92.29641.10033.20502.51322.29642.92762.92761.81674.16143.61352.34473.6135
H102.29643.20501.10032.51322.29642.92762.92763.61354.16141.81673.61352.3447
H112.29642.51321.10033.20502.29642.92762.92762.34473.61351.81674.16143.6135
H122.29642.51323.20501.10032.29642.92762.92763.61352.34473.61354.16141.8167
H132.29643.20502.51321.10032.29642.92762.92764.16143.61352.34473.61351.8167

picture of Bicyclo[1.1.1]pentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 74.711 C1 C2 H8 116.652
C1 C2 H9 116.652 C1 C3 C5 74.711
C1 C3 H10 116.652 C1 C3 H11 116.652
C1 C4 C5 74.711 C1 C4 H12 116.652
C1 C4 H13 116.652 C2 C1 C3 87.006
C2 C1 C4 87.006 C2 C1 H6 127.355
C2 C5 C3 87.006 C2 C5 C4 87.006
C2 C5 H7 127.355 C3 C1 C4 87.006
C3 C1 H6 127.355 C3 C5 C4 87.006
C3 C5 H7 127.355 C4 C1 H6 127.355
C4 C5 H7 127.355 C5 C2 H8 116.652
C5 C2 H9 116.652 C5 C3 H10 116.652
C5 C3 H11 116.652 C5 C4 H12 116.652
C5 C4 H13 116.652 H8 C2 H9 111.291
H10 C3 H11 111.291 H12 C4 H13 111.291
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.015      
2 C -0.466      
3 C -0.466      
4 C -0.466      
5 C -0.015      
6 H 0.239      
7 H 0.239      
8 H 0.158      
9 H 0.158      
10 H 0.158      
11 H 0.158      
12 H 0.158      
13 H 0.158      


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


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.251 0.000 0.000
y 0.000 -31.251 0.000
z 0.000 0.000 -31.878
Traceless
 xyz
x 0.313 0.000 0.000
y 0.000 0.313 0.000
z 0.000 0.000 -0.627
Polar
3z2-r2-1.254
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.191 0.000 0.000
y 0.000 7.198 0.000
z 0.000 0.000 6.600


<r2> (average value of r2) Å2
<r2> 80.536
(<r2>)1/2 8.974