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All results from a given calculation for C8H8 (cubane)

using model chemistry: B97D3/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes OH 1A1G
Energy calculated at B97D3/6-31G
 hartrees
Energy at 0K-309.162378
Energy at 298.15K-309.172227
HF Energy-309.162378
Nuclear repulsion energy362.799887
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 B97D3/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1g 3134 3134 0.00 535.06 0.00 0.00
2 A1g 983 983 0.00 64.46 0.00 0.00
3 A2u 3086 3086 0.00 0.00 0.00 0.00
4 A2u 1010 1010 0.00 0.00 0.00 0.00
5 Eg 1084 1084 0.00 2.37 0.75 0.86
5 Eg 1084 1084 0.00 2.37 0.75 0.86
6 Eg 910 910 0.00 37.20 0.75 0.86
6 Eg 910 910 0.00 37.20 0.75 0.86
7 Eu 1178 1178 0.00 0.00 0.00 0.00
7 Eu 1178 1178 0.00 0.00 0.00 0.00
8 Eu 611 611 0.00 0.00 0.00 0.00
8 Eu 611 611 0.00 0.00 0.00 0.00
9 T1g 1149 1149 0.00 0.00 0.00 0.00
9 T1g 1149 1149 0.00 0.00 0.00 0.00
9 T1g 1149 1149 0.00 0.00 0.00 0.00
10 T1u 3107 3107 162.22 0.00 0.00 0.00
10 T1u 3107 3107 162.22 0.00 0.00 0.00
10 T1u 3107 3107 162.22 0.00 0.00 0.00
11 T1u 1238 1238 5.44 0.00 0.00 0.00
11 T1u 1238 1238 5.44 0.00 0.00 0.00
11 T1u 1238 1238 5.44 0.00 0.00 0.00
12 T1u 843 843 9.84 0.00 0.00 0.00
12 T1u 843 843 9.84 0.00 0.00 0.00
12 T1u 843 843 9.84 0.00 0.00 0.00
13 T2g 3097 3097 0.00 246.69 0.75 0.86
13 T2g 3097 3097 0.00 246.69 0.75 0.86
13 T2g 3097 3097 0.00 246.69 0.75 0.86
14 T2g 1192 1192 0.00 13.05 0.75 0.86
14 T2g 1192 1192 0.00 13.05 0.75 0.86
14 T2g 1192 1192 0.00 13.05 0.75 0.86
15 T2g 816 816 0.00 8.07 0.75 0.86
15 T2g 816 816 0.00 8.07 0.75 0.86
15 T2g 816 816 0.00 8.07 0.75 0.86
16 T2g 673 673 0.00 1.22 0.75 0.86
16 T2g 673 673 0.00 1.22 0.75 0.86
16 T2g 673 673 0.00 1.22 0.75 0.86
17 T2u 1039 1039 0.00 0.00 0.00 0.00
17 T2u 1039 1039 0.00 0.00 0.00 0.00
17 T2u 1039 1039 0.00 0.00 0.00 0.00
18 T2u 829 829 0.00 0.00 0.00 0.00
18 T2u 829 829 0.00 0.00 0.00 0.00
18 T2u 829 829 0.00 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 28862.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 28862.3 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 B97D3/6-31G
ABC
0.10936 0.10936 0.10936

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

Point Group is Oh

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.795 0.795 0.795
C2 -0.795 0.795 0.795
C3 0.795 0.795 -0.795
C4 -0.795 0.795 -0.795
C5 0.795 -0.795 0.795
C6 -0.795 -0.795 0.795
C7 0.795 -0.795 -0.795
C8 -0.795 -0.795 -0.795
H9 1.426 1.426 1.426
H10 -1.426 1.426 1.426
H11 1.426 1.426 -1.426
H12 -1.426 1.426 -1.426
H13 1.426 -1.426 1.426
H14 -1.426 -1.426 1.426
H15 1.426 -1.426 -1.426
H16 -1.426 -1.426 -1.426

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.59011.59012.24871.59012.24872.24872.75411.09272.39342.39343.20362.39343.20363.20363.8468
C21.59012.24871.59012.24871.59012.75412.24872.39341.09273.20362.39343.20362.39343.84683.2036
C31.59012.24871.59012.24872.75411.59012.24872.39343.20361.09272.39343.20363.84682.39343.2036
C42.24871.59011.59012.75412.24872.24871.59013.20362.39342.39341.09273.84683.20363.20362.3934
C51.59012.24872.24872.75411.59011.59012.24872.39343.20363.20363.84681.09272.39342.39343.2036
C62.24871.59012.75412.24871.59012.24871.59013.20362.39343.84683.20362.39341.09273.20362.3934
C72.24872.75411.59012.24871.59012.24871.59013.20363.84682.39343.20362.39343.20361.09272.3934
C82.75412.24872.24871.59012.24871.59011.59013.84683.20363.20362.39343.20362.39342.39341.0927
H91.09272.39342.39343.20362.39343.20363.20363.84682.85182.85184.03312.85184.03314.03314.9395
H102.39341.09273.20362.39343.20362.39343.84683.20362.85184.03312.85184.03312.85184.93954.0331
H112.39343.20361.09272.39343.20363.84682.39343.20362.85184.03312.85184.03314.93952.85184.0331
H123.20362.39342.39341.09273.84683.20363.20362.39344.03312.85182.85184.93954.03314.03312.8518
H132.39343.20363.20363.84681.09272.39342.39343.20362.85184.03314.03314.93952.85182.85184.0331
H143.20362.39343.84683.20362.39341.09273.20362.39344.03312.85184.93954.03312.85184.03312.8518
H153.20363.84682.39343.20362.39343.20361.09272.39344.03314.93952.85184.03312.85184.03312.8518
H163.84683.20363.20362.39343.20362.39342.39341.09274.93954.03314.03312.85184.03312.85182.8518

picture of cubane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 90.000 C1 C2 C6 90.000
C1 C2 H10 125.264 C1 C3 C4 90.000
C1 C3 C7 90.000 C1 C3 H11 125.264
C1 C5 C6 90.000 C1 C5 C7 90.000
C1 C5 H13 125.264 C2 C1 C3 90.000
C2 C1 C5 90.000 C2 C1 H9 125.264
C2 C4 C3 90.000 C2 C4 C8 90.000
C2 C4 H12 125.264 C2 C6 C5 90.000
C2 C6 C8 90.000 C2 C6 H14 125.264
C3 C1 C5 90.000 C3 C1 H9 125.264
C3 C4 C8 90.000 C3 C4 H12 125.264
C3 C7 C5 90.000 C3 C7 C8 90.000
C3 C7 H15 125.264 C4 C2 C6 90.000
C4 C2 H10 125.264 C4 C3 C7 90.000
C4 C3 H11 125.264 C4 C8 C6 90.000
C4 C8 C7 90.000 C4 C8 H16 125.264
C5 C1 H9 125.264 C5 C6 C8 90.000
C5 C6 H14 125.264 C5 C7 C8 90.000
C5 C7 H15 125.264 C6 C2 H10 125.264
C6 C5 C7 90.000 C6 C5 H13 125.264
C6 C8 C7 90.000 C6 C8 H16 125.264
C7 C3 H11 125.264 C7 C5 H13 125.264
C7 C8 H16 125.264 C8 C4 H12 125.264
C8 C6 H14 125.264 C8 C7 H15 125.264
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.120      
2 C -0.120      
3 C -0.120      
4 C -0.120      
5 C -0.120      
6 C -0.120      
7 C -0.120      
8 C -0.120      
9 H 0.120      
10 H 0.120      
11 H 0.120      
12 H 0.120      
13 H 0.120      
14 H 0.120      
15 H 0.120      
16 H 0.120      


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 -46.240 0.000 0.000
y 0.000 -46.240 0.000
z 0.000 0.000 -46.240
Traceless
 xyz
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000
Polar
3z2-r20.000
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 10.001 0.000 0.000
y 0.000 10.001 0.000
z 0.000 0.000 10.001


<r2> (average value of r2) Å2
<r2> 168.699
(<r2>)1/2 12.988