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All results from a given calculation for C8H8 (cubane)

using model chemistry: B3LYP/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes OH 1A1G
Energy calculated at B3LYP/6-311G**
 hartrees
Energy at 0K-309.531512
Energy at 298.15K-309.541529
HF Energy-309.531512
Nuclear repulsion energy366.808906
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 B3LYP/6-311G**
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 3123 3019 0.00 652.07 0.00 0.00
2 A1g 1017 984 0.00 56.61 0.00 0.00
3 A2u 3088 2985 0.00 0.00 0.00 0.00
4 A2u 1048 1013 0.00 0.00 0.00 0.00
5 Eg 1113 1076 0.00 0.20 0.75 0.86
5 Eg 1113 1076 0.00 0.20 0.75 0.86
6 Eg 913 883 0.00 31.23 0.75 0.86
6 Eg 913 883 0.00 31.23 0.75 0.86
7 Eu 1179 1140 0.00 0.00 0.00 0.00
7 Eu 1179 1140 0.00 0.00 0.00 0.00
8 Eu 622 601 0.00 0.00 0.00 0.00
8 Eu 622 601 0.00 0.00 0.00 0.00
9 T1g 1162 1123 0.00 0.00 0.00 0.00
9 T1g 1162 1123 0.00 0.00 0.00 0.00
9 T1g 1162 1123 0.00 0.00 0.00 0.00
10 T1u 3104 3001 144.08 0.00 0.00 0.00
10 T1u 3104 3001 144.08 0.00 0.00 0.00
10 T1u 3104 3001 144.08 0.00 0.00 0.00
11 T1u 1266 1224 5.14 0.00 0.00 0.00
11 T1u 1266 1224 5.14 0.00 0.00 0.00
11 T1u 1266 1224 5.14 0.00 0.00 0.00
12 T1u 865 836 9.48 0.00 0.00 0.00
12 T1u 865 836 9.48 0.00 0.00 0.00
12 T1u 865 836 9.48 0.00 0.00 0.00
13 T2g 3097 2994 0.00 279.98 0.75 0.86
13 T2g 3097 2994 0.00 279.98 0.75 0.86
13 T2g 3097 2994 0.00 279.98 0.75 0.86
14 T2g 1221 1180 0.00 8.64 0.75 0.86
14 T2g 1221 1180 0.00 8.64 0.75 0.86
14 T2g 1221 1180 0.00 8.64 0.75 0.86
15 T2g 839 811 0.00 5.68 0.75 0.86
15 T2g 839 811 0.00 5.68 0.75 0.86
15 T2g 839 811 0.00 5.68 0.75 0.86
16 T2g 682 659 0.00 0.87 0.75 0.86
16 T2g 682 659 0.00 0.87 0.75 0.86
16 T2g 682 659 0.00 0.87 0.75 0.86
17 T2u 1069 1033 0.00 0.00 0.00 0.00
17 T2u 1069 1033 0.00 0.00 0.00 0.00
17 T2u 1069 1033 0.00 0.00 0.00 0.00
18 T2u 837 809 0.00 0.00 0.00 0.00
18 T2u 837 809 0.00 0.00 0.00 0.00
18 T2u 837 809 0.00 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 29176.9 cm-1
Scaled (by 0.9668) Zero Point Vibrational Energy (zpe) 28208.2 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 B3LYP/6-311G**
ABC
0.11186 0.11186 0.11186

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311G**

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
C11.57091.57092.22161.57092.22162.22162.72101.08902.37262.37263.17372.37263.17373.17373.8099
C21.57092.22161.57092.22161.57092.72102.22162.37261.08903.17372.37263.17372.37263.80993.1737
C31.57092.22161.57092.22162.72101.57092.22162.37263.17371.08902.37263.17373.80992.37263.1737
C42.22161.57091.57092.72102.22162.22161.57093.17372.37262.37261.08903.80993.17373.17372.3726
C51.57092.22162.22162.72101.57091.57092.22162.37263.17373.17373.80991.08902.37262.37263.1737
C62.22161.57092.72102.22161.57092.22161.57093.17372.37263.80993.17372.37261.08903.17372.3726
C72.22162.72101.57092.22161.57092.22161.57093.17373.80992.37263.17372.37263.17371.08902.3726
C82.72102.22162.22161.57092.22161.57091.57093.80993.17373.17372.37263.17372.37262.37261.0890
H91.08902.37262.37263.17372.37263.17373.17373.80992.82842.82844.00002.82844.00004.00004.8989
H102.37261.08903.17372.37263.17372.37263.80993.17372.82844.00002.82844.00002.82844.89894.0000
H112.37263.17371.08902.37263.17373.80992.37263.17372.82844.00002.82844.00004.89892.82844.0000
H123.17372.37262.37261.08903.80993.17373.17372.37264.00002.82842.82844.89894.00004.00002.8284
H132.37263.17373.17373.80991.08902.37262.37263.17372.82844.00004.00004.89892.82842.82844.0000
H143.17372.37263.80993.17372.37261.08903.17372.37264.00002.82844.89894.00002.82844.00002.8284
H153.17373.80992.37263.17372.37263.17371.08902.37264.00004.89892.82844.00002.82844.00002.8284
H163.80993.17373.17372.37263.17372.37262.37261.08904.89894.00004.00002.82844.00002.82842.8284

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 B3LYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.085      
2 C -0.085      
3 C -0.085      
4 C -0.085      
5 C -0.085      
6 C -0.085      
7 C -0.085      
8 C -0.085      
9 H 0.085      
10 H 0.085      
11 H 0.085      
12 H 0.085      
13 H 0.085      
14 H 0.085      
15 H 0.085      
16 H 0.085      


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 -46.966 0.000 0.000
y 0.000 -46.966 0.000
z 0.000 0.000 -46.966
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 10.601 0.000 0.000
y 0.000 10.601 0.000
z 0.000 0.000 10.601


<r2> (average value of r2) Å2
<r2> 166.177
(<r2>)1/2 12.891