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All results from a given calculation for C8H8 (cubane)

using model chemistry: HF/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes OH 1A1G
Energy calculated at HF/LANL2DZ
 hartrees
Energy at 0K-307.281381
Energy at 298.15K-307.291956
HF Energy-307.281381
Nuclear repulsion energy366.381141
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 HF/LANL2DZ
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 3366 3029 0.00 457.52 0.00 0.00
2 A1g 1071 964 0.00 107.49 0.00 0.00
3 A2u 3314 2982 0.00 0.00 0.00 0.00
4 A2u 1181 1063 0.00 0.00 0.00 0.00
5 Eg 1239 1115 0.00 6.01 0.75 0.86
5 Eg 1239 1115 0.00 6.01 0.75 0.86
6 Eg 997 897 0.00 38.63 0.75 0.86
6 Eg 997 897 0.00 38.63 0.75 0.86
7 Eu 1330 1197 0.00 0.00 0.00 0.00
7 Eu 1330 1197 0.00 0.00 0.00 0.00
8 Eu 695 626 0.00 0.00 0.00 0.00
8 Eu 695 626 0.00 0.00 0.00 0.00
9 T1g 1305 1174 0.00 0.00 0.00 0.00
9 T1g 1305 1174 0.00 0.00 0.00 0.00
9 T1g 1305 1174 0.00 0.00 0.00 0.00
10 T1u 3338 3004 142.15 0.00 0.00 0.00
10 T1u 3338 3004 142.15 0.00 0.00 0.00
10 T1u 3338 3004 142.15 0.00 0.00 0.00
11 T1u 1392 1252 4.38 0.00 0.00 0.00
11 T1u 1392 1252 4.38 0.00 0.00 0.00
11 T1u 1392 1252 4.38 0.00 0.00 0.00
12 T1u 928 835 21.95 0.00 0.00 0.00
12 T1u 928 835 21.95 0.00 0.00 0.00
12 T1u 928 835 21.95 0.00 0.00 0.00
13 T2g 3325 2992 0.00 159.15 0.75 0.86
13 T2g 3325 2992 0.00 159.15 0.75 0.86
13 T2g 3325 2992 0.00 159.15 0.75 0.86
14 T2g 1370 1233 0.00 7.83 0.75 0.86
14 T2g 1370 1233 0.00 7.83 0.75 0.86
14 T2g 1370 1233 0.00 7.83 0.75 0.86
15 T2g 917 825 0.00 5.79 0.75 0.86
15 T2g 917 825 0.00 5.79 0.75 0.86
15 T2g 917 825 0.00 5.79 0.75 0.86
16 T2g 771 694 0.00 4.14 0.75 0.86
16 T2g 771 694 0.00 4.14 0.75 0.86
16 T2g 771 694 0.00 4.14 0.75 0.86
17 T2u 1214 1093 0.00 0.00 0.00 0.00
17 T2u 1214 1093 0.00 0.00 0.00 0.00
17 T2u 1214 1093 0.00 0.00 0.00 0.00
18 T2u 923 831 0.00 0.00 0.00 0.00
18 T2u 923 831 0.00 0.00 0.00 0.00
18 T2u 923 831 0.00 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 31951.3 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 28752.9 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 HF/LANL2DZ
ABC
0.11148 0.11148 0.11148

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is Oh

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.788 0.788 0.788
C2 -0.788 0.788 0.788
C3 0.788 0.788 -0.788
C4 -0.788 0.788 -0.788
C5 0.788 -0.788 0.788
C6 -0.788 -0.788 0.788
C7 0.788 -0.788 -0.788
C8 -0.788 -0.788 -0.788
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
C11.57601.57602.22871.57602.22872.22872.72961.07542.36582.36583.16832.36583.16833.16833.8051
C21.57602.22871.57602.22871.57602.72962.22872.36581.07543.16832.36583.16832.36583.80513.1683
C31.57602.22871.57602.22872.72961.57602.22872.36583.16831.07542.36583.16833.80512.36583.1683
C42.22871.57601.57602.72962.22872.22871.57603.16832.36582.36581.07543.80513.16833.16832.3658
C51.57602.22872.22872.72961.57601.57602.22872.36583.16833.16833.80511.07542.36582.36583.1683
C62.22871.57602.72962.22871.57602.22871.57603.16832.36583.80513.16832.36581.07543.16832.3658
C72.22872.72961.57602.22871.57602.22871.57603.16833.80512.36583.16832.36583.16831.07542.3658
C82.72962.22872.22871.57602.22871.57601.57603.80513.16833.16832.36583.16832.36582.36581.0754
H91.07542.36582.36583.16832.36583.16833.16833.80512.81782.81783.98492.81783.98493.98494.8805
H102.36581.07543.16832.36583.16832.36583.80513.16832.81783.98492.81783.98492.81784.88053.9849
H112.36583.16831.07542.36583.16833.80512.36583.16832.81783.98492.81783.98494.88052.81783.9849
H123.16832.36582.36581.07543.80513.16833.16832.36583.98492.81782.81784.88053.98493.98492.8178
H132.36583.16833.16833.80511.07542.36582.36583.16832.81783.98493.98494.88052.81782.81783.9849
H143.16832.36583.80513.16832.36581.07543.16832.36583.98492.81784.88053.98492.81783.98492.8178
H153.16833.80512.36583.16832.36583.16831.07542.36583.98494.88052.81783.98492.81783.98492.8178
H163.80513.16833.16832.36583.16832.36582.36581.07544.88053.98493.98492.81783.98492.81782.8178

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 HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.240      
2 C -0.240      
3 C -0.240      
4 C -0.240      
5 C -0.240      
6 C -0.240      
7 C -0.240      
8 C -0.240      
9 H 0.240      
10 H 0.240      
11 H 0.240      
12 H 0.240      
13 H 0.240      
14 H 0.240      
15 H 0.240      
16 H 0.240      


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 -47.796 0.000 0.000
y 0.000 -47.796 0.000
z 0.000 0.000 -47.796
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 9.661 0.000 0.000
y 0.000 9.661 0.000
z 0.000 0.000 9.661


<r2> (average value of r2) Å2
<r2> 166.902
(<r2>)1/2 12.919