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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-33.013806
Energy at 298.15K 
HF Energy-33.013806
Nuclear repulsion energy96.101802
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' 3136 3136 0.01      
2 A1' 3078 3078 0.00      
3 A1' 1574 1574 0.00      
4 A1' 1159 1159 0.00      
5 A1' 914 914 0.00      
6 A1" 1002 1002 0.00      
7 A2' 3133 3133 0.00      
8 A2' 946 946 0.00      
9 A2" 3126 3126 163.35      
10 A2" 1276 1276 39.84      
11 A2" 875 875 11.56      
12 E' 3140 3140 101.33      
12 E' 3140 3140 102.14      
13 E' 3073 3073 122.61      
13 E' 3073 3073 121.26      
14 E' 1515 1515 0.23      
14 E' 1515 1515 0.22      
15 E' 1280 1280 1.03      
15 E' 1280 1280 1.01      
16 E' 1112 1112 0.00      
16 E' 1112 1112 0.00      
17 E' 920 920 1.70      
17 E' 920 920 1.70      
18 E' 541 541 0.42      
18 E' 541 541 0.43      
19 E" 1213 1213 0.00      
19 E" 1213 1213 0.00      
20 E" 1164 1164 0.00      
20 E" 1164 1164 0.00      
21 E" 1036 1036 0.00      
21 E" 1036 1036 0.00      
22 E" 818 818 0.00      
22 E" 818 818 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25920.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 25920.7 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
0.23737 0.23737 0.20574

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 0.949
C2 0.000 1.246 0.000
C3 1.079 -0.623 0.000
C4 -1.079 -0.623 0.000
C5 0.000 0.000 -0.949
H6 0.000 0.000 2.047
H7 0.000 0.000 -2.047
H8 0.910 1.867 0.000
H9 -0.910 1.867 0.000
H10 1.162 -1.721 0.000
H11 2.072 -0.146 0.000
H12 -2.072 -0.146 0.000
H13 -1.162 -1.721 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.56571.56571.56571.89741.09872.99612.28342.28342.28342.28332.28332.2834
C21.56572.15742.15741.56572.39652.39651.10181.10183.18642.49562.49563.1864
C31.56572.15742.15741.56572.39652.39652.49563.18641.10181.10183.18642.4956
C41.56572.15742.15741.56572.39652.39653.18642.49562.49563.18641.10181.1018
C51.89741.56571.56571.56572.99611.09872.28342.28342.28342.28332.28332.2834
H61.09872.39652.39652.39652.99614.09472.91642.91642.91642.91642.91642.9164
H72.99612.39652.39652.39651.09874.09472.91642.91642.91642.91642.91642.9164
H82.28341.10182.49563.18642.28342.91642.91641.81963.59742.32413.59744.1436
H92.28341.10183.18642.49562.28342.91642.91641.81964.14363.59742.32413.5974
H102.28343.18641.10182.49562.28342.91642.91643.59744.14361.81963.59742.3241
H112.28332.49561.10183.18642.28332.91642.91642.32413.59741.81964.14363.5974
H122.28332.49563.18641.10182.28332.91642.91643.59742.32413.59744.14361.8196
H132.28343.18642.49561.10182.28342.91642.91644.14363.59742.32413.59741.8196

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 74.591 C1 C2 H8 116.663
C1 C2 H9 116.663 C1 C3 C5 74.591
C1 C3 H10 116.663 C1 C3 H11 116.663
C1 C4 C5 74.591 C1 C4 H12 116.663
C1 C4 H13 116.663 C2 C1 C3 87.093
C2 C1 C4 87.093 C2 C1 H6 127.296
C2 C5 C3 87.093 C2 C5 C4 87.093
C2 C5 H7 127.296 C3 C1 C4 87.093
C3 C1 H6 127.296 C3 C5 C4 87.093
C3 C5 H7 127.296 C4 C1 H6 127.296
C4 C5 H7 127.296 C5 C2 H8 116.663
C5 C2 H9 116.663 C5 C3 H10 116.663
C5 C3 H11 116.663 C5 C4 H12 116.663
C5 C4 H13 116.663 H8 C2 H9 111.323
H10 C3 H11 111.323 H12 C4 H13 111.323
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 0.009      
2 C -0.494      
3 C -0.494      
4 C -0.494      
5 C 0.009      
6 H 0.246      
7 H 0.246      
8 H 0.162      
9 H 0.162      
10 H 0.162      
11 H 0.162      
12 H 0.162      
13 H 0.162      


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 -30.999 0.000 0.000
y 0.000 -30.999 0.000
z 0.000 0.000 -31.452
Traceless
 xyz
x 0.226 0.000 0.000
y 0.000 0.226 0.000
z 0.000 0.000 -0.453
Polar
3z2-r2-0.906
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 7.386 0.000 0.000
y 0.000 7.407 0.000
z 0.000 0.000 6.812


<r2> (average value of r2) Å2
<r2> 79.538
(<r2>)1/2 8.918