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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-309.245562
Energy at 298.15K-309.255402
HF Energy-309.245562
Nuclear repulsion energy366.045832
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 3090 3029 0.00 584.78 0.00 0.00
2 A1g 995 976 0.00 49.03 0.00 0.00
3 A2u 3051 2991 0.00 0.00 0.00 0.00
4 A2u 1020 1000 0.00 0.00 0.00 0.00
5 Eg 1094 1072 0.00 2.06 0.75 0.86
5 Eg 1094 1072 0.00 2.06 0.75 0.86
6 Eg 904 886 0.00 38.59 0.75 0.86
6 Eg 904 886 0.00 38.59 0.75 0.86
7 Eu 1163 1140 0.00 0.00 0.00 0.00
7 Eu 1163 1140 0.00 0.00 0.00 0.00
8 Eu 613 601 0.00 0.00 0.00 0.00
8 Eu 613 601 0.00 0.00 0.00 0.00
9 T1g 1132 1110 0.00 0.00 0.00 0.00
9 T1g 1132 1110 0.00 0.00 0.00 0.00
9 T1g 1132 1110 0.00 0.00 0.00 0.00
10 T1u 3070 3010 179.79 0.00 0.00 0.00
10 T1u 3070 3010 179.79 0.00 0.00 0.00
10 T1u 3070 3010 179.79 0.00 0.00 0.00
11 T1u 1252 1228 2.43 0.00 0.00 0.00
11 T1u 1252 1228 2.43 0.00 0.00 0.00
11 T1u 1252 1228 2.43 0.00 0.00 0.00
12 T1u 851 834 5.95 0.00 0.00 0.00
12 T1u 851 834 5.95 0.00 0.00 0.00
12 T1u 851 834 5.95 0.00 0.00 0.00
13 T2g 3063 3003 0.00 264.42 0.75 0.86
13 T2g 3063 3003 0.00 264.42 0.75 0.86
13 T2g 3063 3003 0.00 264.42 0.75 0.86
14 T2g 1208 1184 0.00 12.32 0.75 0.86
14 T2g 1208 1184 0.00 12.32 0.75 0.86
14 T2g 1208 1184 0.00 12.32 0.75 0.86
15 T2g 829 813 0.00 7.54 0.75 0.86
15 T2g 829 813 0.00 7.54 0.75 0.86
15 T2g 829 813 0.00 7.54 0.75 0.86
16 T2g 669 656 0.00 0.85 0.75 0.86
16 T2g 669 656 0.00 0.85 0.75 0.86
16 T2g 669 656 0.00 0.85 0.75 0.86
17 T2u 1049 1029 0.00 0.00 0.00 0.00
17 T2u 1049 1029 0.00 0.00 0.00 0.00
17 T2u 1049 1029 0.00 0.00 0.00 0.00
18 T2u 831 815 0.00 0.00 0.00 0.00
18 T2u 831 815 0.00 0.00 0.00 0.00
18 T2u 831 815 0.00 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 28780.8 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 28216.7 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 B97D3/6-31G*
ABC
0.11143 0.11143 0.11143

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 0.787 0.787 0.787
C2 -0.787 0.787 0.787
C3 0.787 0.787 -0.787
C4 -0.787 0.787 -0.787
C5 0.787 -0.787 0.787
C6 -0.787 -0.787 0.787
C7 0.787 -0.787 -0.787
C8 -0.787 -0.787 -0.787
H9 1.419 1.419 1.419
H10 -1.419 1.419 1.419
H11 1.419 1.419 -1.419
H12 -1.419 1.419 -1.419
H13 1.419 -1.419 1.419
H14 -1.419 -1.419 1.419
H15 1.419 -1.419 -1.419
H16 -1.419 -1.419 -1.419

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.57321.57322.22491.57322.22492.22492.72491.09602.38062.38063.18332.38063.18333.18333.8209
C21.57322.22491.57322.22491.57322.72492.22492.38061.09603.18332.38063.18332.38063.82093.1833
C31.57322.22491.57322.22492.72491.57322.22492.38063.18331.09602.38063.18333.82092.38063.1833
C42.22491.57321.57322.72492.22492.22491.57323.18332.38062.38061.09603.82093.18333.18332.3806
C51.57322.22492.22492.72491.57321.57322.22492.38063.18333.18333.82091.09602.38062.38063.1833
C62.22491.57322.72492.22491.57322.22491.57323.18332.38063.82093.18332.38061.09603.18332.3806
C72.22492.72491.57322.22491.57322.22491.57323.18333.82092.38063.18332.38063.18331.09602.3806
C82.72492.22492.22491.57322.22491.57321.57323.82093.18333.18332.38063.18332.38062.38061.0960
H91.09602.38062.38063.18332.38063.18333.18333.82092.83882.83884.01462.83884.01464.01464.9169
H102.38061.09603.18332.38063.18332.38063.82093.18332.83884.01462.83884.01462.83884.91694.0146
H112.38063.18331.09602.38063.18333.82092.38063.18332.83884.01462.83884.01464.91692.83884.0146
H123.18332.38062.38061.09603.82093.18333.18332.38064.01462.83882.83884.91694.01464.01462.8388
H132.38063.18333.18333.82091.09602.38062.38063.18332.83884.01464.01464.91692.83882.83884.0146
H143.18332.38063.82093.18332.38061.09603.18332.38064.01462.83884.91694.01462.83884.01462.8388
H153.18333.82092.38063.18332.38063.18331.09602.38064.01464.91692.83884.01462.83884.01462.8388
H163.82093.18333.18332.38063.18332.38062.38061.09604.91694.01464.01462.83884.01462.83882.8388

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 -0.117      
2 C -0.117      
3 C -0.117      
4 C -0.117      
5 C -0.117      
6 C -0.117      
7 C -0.117      
8 C -0.117      
9 H 0.117      
10 H 0.117      
11 H 0.117      
12 H 0.117      
13 H 0.117      
14 H 0.117      
15 H 0.117      
16 H 0.117      


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 -46.067 0.000 0.000
y 0.000 -46.067 0.000
z 0.000 0.000 -46.067
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 10.119 0.000 0.000
y 0.000 10.119 0.000
z 0.000 0.000 10.119


<r2> (average value of r2) Å2
<r2> 166.224
(<r2>)1/2 12.893