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All results from a given calculation for C8H8 (cubane)

using model chemistry: B3LYPultrafine/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes OH 1A1G
Energy calculated at B3LYPultrafine/6-31G(2df,p)
 hartrees
Energy at 0K-309.481416
Energy at 298.15K-309.491439
HF Energy-309.481416
Nuclear repulsion energy366.815247
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 B3LYPultrafine/6-31G(2df,p)
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 3135 3025 0.00 529.74 0.00 0.00
2 A1g 1021 986 0.00 54.32 0.00 0.00
3 A2u 3099 2991 0.00 0.00 0.00 0.00
4 A2u 1052 1015 0.00 0.00 0.00 0.00
5 Eg 1112 1074 0.00 1.35 0.75 0.86
5 Eg 1112 1074 0.00 1.35 0.75 0.86
6 Eg 918 886 0.00 35.87 0.75 0.86
6 Eg 918 886 0.00 35.87 0.75 0.86
7 Eu 1175 1134 0.00 0.00 0.00 0.00
7 Eu 1175 1134 0.00 0.00 0.00 0.00
8 Eu 627 605 0.00 0.00 0.00 0.00
8 Eu 627 605 0.00 0.00 0.00 0.00
9 T1g 1151 1111 0.00 0.00 0.00 0.00
9 T1g 1151 1111 0.00 0.00 0.00 0.00
9 T1g 1151 1111 0.00 0.00 0.00 0.00
10 T1u 3116 3007 130.25 0.00 0.00 0.00
10 T1u 3116 3007 130.25 0.00 0.00 0.00
10 T1u 3116 3007 130.25 0.00 0.00 0.00
11 T1u 1275 1230 1.06 0.00 0.00 0.00
11 T1u 1275 1230 1.06 0.00 0.00 0.00
11 T1u 1275 1230 1.06 0.00 0.00 0.00
12 T1u 869 838 5.88 0.00 0.00 0.00
12 T1u 869 838 5.88 0.00 0.00 0.00
12 T1u 869 838 5.88 0.00 0.00 0.00
13 T2g 3109 3000 0.00 229.38 0.75 0.86
13 T2g 3109 3000 0.00 229.38 0.75 0.86
13 T2g 3109 3000 0.00 229.38 0.75 0.86
14 T2g 1231 1187 0.00 11.48 0.75 0.86
14 T2g 1231 1187 0.00 11.48 0.75 0.86
14 T2g 1231 1187 0.00 11.48 0.75 0.86
15 T2g 844 815 0.00 6.24 0.75 0.86
15 T2g 844 815 0.00 6.24 0.75 0.86
15 T2g 844 815 0.00 6.24 0.75 0.86
16 T2g 684 660 0.00 0.51 0.75 0.86
16 T2g 684 660 0.00 0.51 0.75 0.86
16 T2g 684 660 0.00 0.51 0.75 0.86
17 T2u 1072 1034 0.00 0.00 0.00 0.00
17 T2u 1072 1034 0.00 0.00 0.00 0.00
17 T2u 1072 1034 0.00 0.00 0.00 0.00
18 T2u 843 813 0.00 0.00 0.00 0.00
18 T2u 843 813 0.00 0.00 0.00 0.00
18 T2u 843 813 0.00 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 29275.1 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 28250.5 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 B3LYPultrafine/6-31G(2df,p)
ABC
0.11186 0.11186 0.11186

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G(2df,p)

Point Group is Oh

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.785 0.785 0.785
C2 -0.785 0.785 0.785
C3 0.785 0.785 -0.785
C4 -0.785 0.785 -0.785
C5 0.785 -0.785 0.785
C6 -0.785 -0.785 0.785
C7 0.785 -0.785 -0.785
C8 -0.785 -0.785 -0.785
H9 1.414 1.414 1.414
H10 -1.414 1.414 1.414
H11 1.414 1.414 -1.414
H12 -1.414 1.414 -1.414
H13 1.414 -1.414 1.414
H14 -1.414 -1.414 1.414
H15 1.414 -1.414 -1.414
H16 -1.414 -1.414 -1.414

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.57091.57092.22161.57092.22162.22162.72091.08902.37262.37263.17372.37263.17373.17373.8099
C21.57092.22161.57092.22161.57092.72092.22162.37261.08903.17372.37263.17372.37263.80993.1737
C31.57092.22161.57092.22162.72091.57092.22162.37263.17371.08902.37263.17373.80992.37263.1737
C42.22161.57091.57092.72092.22162.22161.57093.17372.37262.37261.08903.80993.17373.17372.3726
C51.57092.22162.22162.72091.57091.57092.22162.37263.17373.17373.80991.08902.37262.37263.1737
C62.22161.57092.72092.22161.57092.22161.57093.17372.37263.80993.17372.37261.08903.17372.3726
C72.22162.72091.57092.22161.57092.22161.57093.17373.80992.37263.17372.37263.17371.08902.3726
C82.72092.22162.22161.57092.22161.57091.57093.80993.17373.17372.37263.17372.37262.37261.0890
H91.08902.37262.37263.17372.37263.17373.17373.80992.82842.82843.99992.82843.99993.99994.8989
H102.37261.08903.17372.37263.17372.37263.80993.17372.82843.99992.82843.99992.82844.89893.9999
H112.37263.17371.08902.37263.17373.80992.37263.17372.82843.99992.82843.99994.89892.82843.9999
H123.17372.37262.37261.08903.80993.17373.17372.37263.99992.82842.82844.89893.99993.99992.8284
H132.37263.17373.17373.80991.08902.37262.37263.17372.82843.99993.99994.89892.82842.82843.9999
H143.17372.37263.80993.17372.37261.08903.17372.37263.99992.82844.89893.99992.82843.99992.8284
H153.17373.80992.37263.17372.37263.17371.08902.37263.99994.89892.82843.99992.82843.99992.8284
H163.80993.17373.17372.37263.17372.37262.37261.08904.89893.99993.99992.82843.99992.82842.8284

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 B3LYPultrafine/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.058      
2 C -0.058      
3 C -0.058      
4 C -0.058      
5 C -0.058      
6 C -0.058      
7 C -0.058      
8 C -0.058      
9 H 0.058      
10 H 0.058      
11 H 0.058      
12 H 0.058      
13 H 0.058      
14 H 0.058      
15 H 0.058      
16 H 0.058      


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 -46.235 0.000 0.000
y 0.000 -46.235 0.000
z 0.000 0.000 -46.235
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 10.223 0.000 0.000
y 0.000 10.223 0.000
z 0.000 0.000 10.223


<r2> (average value of r2) Å2
<r2> 165.715
(<r2>)1/2 12.873