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All results from a given calculation for C8H8 (cubane)

using model chemistry: HSEh1PBE/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes OH 1A1G
Energy calculated at HSEh1PBE/TZVP
 hartrees
Energy at 0K-309.219975
Energy at 298.15K-309.230047
HF Energy-309.219975
Nuclear repulsion energy368.971251
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 HSEh1PBE/TZVP
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 3153 3027 0.00 673.28 0.00 0.00
2 A1g 1041 1000 0.00 62.28 0.00 0.00
3 A2u 3116 2992 0.00 0.00 0.00 0.00
4 A2u 1028 987 0.00 0.00 0.00 0.00
5 Eg 1136 1091 0.00 0.17 0.75 0.86
5 Eg 1136 1091 0.00 0.17 0.75 0.86
6 Eg 932 895 0.00 28.36 0.75 0.86
6 Eg 932 895 0.00 28.36 0.75 0.86
7 Eu 1185 1137 0.00 0.00 0.00 0.00
7 Eu 1185 1137 0.00 0.00 0.00 0.00
8 Eu 619 594 0.00 0.00 0.00 0.00
8 Eu 619 594 0.00 0.00 0.00 0.00
9 T1g 1168 1121 0.00 0.00 0.00 0.00
9 T1g 1168 1121 0.00 0.00 0.00 0.00
9 T1g 1168 1121 0.00 0.00 0.00 0.00
10 T1u 3135 3009 120.19 0.00 0.00 0.00
10 T1u 3135 3009 120.19 0.00 0.00 0.00
10 T1u 3135 3009 120.19 0.00 0.00 0.00
11 T1u 1282 1231 7.40 0.00 0.00 0.00
11 T1u 1282 1231 7.40 0.00 0.00 0.00
11 T1u 1282 1231 7.40 0.00 0.00 0.00
12 T1u 882 847 12.34 0.00 0.00 0.00
12 T1u 882 847 12.34 0.00 0.00 0.00
12 T1u 882 847 12.34 0.00 0.00 0.00
13 T2g 3127 3002 0.00 244.15 0.75 0.86
13 T2g 3127 3002 0.00 244.15 0.75 0.86
13 T2g 3127 3002 0.00 244.15 0.75 0.86
14 T2g 1235 1186 0.00 6.12 0.75 0.86
14 T2g 1235 1186 0.00 6.12 0.75 0.86
14 T2g 1235 1186 0.00 6.12 0.75 0.86
15 T2g 854 820 0.00 4.65 0.75 0.86
15 T2g 854 820 0.00 4.65 0.75 0.86
15 T2g 854 820 0.00 4.65 0.75 0.86
16 T2g 669 642 0.00 1.69 0.75 0.86
16 T2g 669 642 0.00 1.69 0.75 0.86
16 T2g 669 642 0.00 1.69 0.75 0.86
17 T2u 1088 1045 0.00 0.00 0.00 0.00
17 T2u 1088 1045 0.00 0.00 0.00 0.00
17 T2u 1088 1045 0.00 0.00 0.00 0.00
18 T2u 855 821 0.00 0.00 0.00 0.00
18 T2u 855 821 0.00 0.00 0.00 0.00
18 T2u 855 821 0.00 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 29480.8 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 28304.5 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 HSEh1PBE/TZVP
ABC
0.11323 0.11323 0.11323

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/TZVP

Point Group is Oh

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.780 0.780 0.780
C2 -0.780 0.780 0.780
C3 0.780 0.780 -0.780
C4 -0.780 0.780 -0.780
C5 0.780 -0.780 0.780
C6 -0.780 -0.780 0.780
C7 0.780 -0.780 -0.780
C8 -0.780 -0.780 -0.780
H9 1.409 1.409 1.409
H10 -1.409 1.409 1.409
H11 1.409 1.409 -1.409
H12 -1.409 1.409 -1.409
H13 1.409 -1.409 1.409
H14 -1.409 -1.409 1.409
H15 1.409 -1.409 -1.409
H16 -1.409 -1.409 -1.409

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.56051.56052.20691.56052.20692.20692.70281.08852.36252.36253.15882.36253.15883.15883.7914
C21.56052.20691.56052.20691.56052.70282.20692.36251.08853.15882.36253.15882.36253.79143.1588
C31.56052.20691.56052.20692.70281.56052.20692.36253.15881.08852.36253.15883.79142.36253.1588
C42.20691.56051.56052.70282.20692.20691.56053.15882.36252.36251.08853.79143.15883.15882.3625
C51.56052.20692.20692.70281.56051.56052.20692.36253.15883.15883.79141.08852.36252.36253.1588
C62.20691.56052.70282.20691.56052.20691.56053.15882.36253.79143.15882.36251.08853.15882.3625
C72.20692.70281.56052.20691.56052.20691.56053.15883.79142.36253.15882.36253.15881.08852.3625
C82.70282.20692.20691.56052.20691.56051.56053.79143.15883.15882.36253.15882.36252.36251.0885
H91.08852.36252.36253.15882.36253.15883.15883.79142.81742.81743.98442.81743.98443.98444.8799
H102.36251.08853.15882.36253.15882.36253.79143.15882.81743.98442.81743.98442.81744.87993.9844
H112.36253.15881.08852.36253.15883.79142.36253.15882.81743.98442.81743.98444.87992.81743.9844
H123.15882.36252.36251.08853.79143.15883.15882.36253.98442.81742.81744.87993.98443.98442.8174
H132.36253.15883.15883.79141.08852.36252.36253.15882.81743.98443.98444.87992.81742.81743.9844
H143.15882.36253.79143.15882.36251.08853.15882.36253.98442.81744.87993.98442.81743.98442.8174
H153.15883.79142.36253.15882.36253.15881.08852.36253.98444.87992.81743.98442.81743.98442.8174
H163.79143.15883.15882.36253.15882.36252.36251.08854.87993.98443.98442.81743.98442.81742.8174

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 HSEh1PBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.152      
2 C -0.152      
3 C -0.152      
4 C -0.152      
5 C -0.152      
6 C -0.152      
7 C -0.152      
8 C -0.152      
9 H 0.152      
10 H 0.152      
11 H 0.152      
12 H 0.152      
13 H 0.152      
14 H 0.152      
15 H 0.152      
16 H 0.152      


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 -46.617 0.000 0.000
y 0.000 -46.617 0.000
z 0.000 0.000 -46.617
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 10.751 0.000 0.000
y 0.000 10.751 0.000
z 0.000 0.000 10.751


<r2> (average value of r2) Å2
<r2> 164.407
(<r2>)1/2 12.822