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All results from a given calculation for C8H8 (cubane)

using model chemistry: B3LYPultrafine/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-309.490342
Energy at 298.15K-309.500327
HF Energy-309.490342
Nuclear repulsion energy366.011372
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/aug-cc-pVDZ
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 3129 3036 0.00 776.57 0.00 0.00
2 A1g 1018 988 0.00 74.79 0.00 0.00
3 A2u 3093 3001 0.00 0.00 0.00 0.00
4 A2u 1050 1019 0.00 0.00 0.00 0.00
5 Eg 1108 1076 0.00 0.11 0.75 0.86
5 Eg 1108 1076 0.00 0.11 0.75 0.86
6 Eg 905 879 0.00 24.14 0.75 0.86
6 Eg 905 879 0.00 24.14 0.75 0.86
7 Eu 1171 1136 0.00 0.00 0.00 0.00
7 Eu 1171 1136 0.00 0.00 0.00 0.00
8 Eu 611 593 0.00 0.00 0.00 0.00
8 Eu 611 593 0.00 0.00 0.00 0.00
9 T1g 1154 1119 0.00 0.00 0.00 0.00
9 T1g 1154 1119 0.00 0.00 0.00 0.00
9 T1g 1154 1119 0.00 0.00 0.00 0.00
10 T1u 3111 3019 141.63 0.00 0.00 0.00
10 T1u 3111 3019 141.63 0.00 0.00 0.00
10 T1u 3111 3019 141.63 0.00 0.00 0.00
11 T1u 1259 1222 4.24 0.00 0.00 0.00
11 T1u 1259 1222 4.24 0.00 0.00 0.00
11 T1u 1259 1222 4.24 0.00 0.00 0.00
12 T1u 860 835 10.17 0.00 0.00 0.00
12 T1u 860 835 10.17 0.00 0.00 0.00
12 T1u 860 835 10.17 0.00 0.00 0.00
13 T2g 3104 3012 0.00 270.91 0.75 0.86
13 T2g 3104 3012 0.00 270.91 0.75 0.86
13 T2g 3104 3012 0.00 270.91 0.75 0.86
14 T2g 1217 1181 0.00 6.32 0.75 0.86
14 T2g 1217 1181 0.00 6.32 0.75 0.86
14 T2g 1217 1181 0.00 6.32 0.75 0.86
15 T2g 833 809 0.00 1.84 0.75 0.86
15 T2g 833 809 0.00 1.84 0.75 0.86
15 T2g 833 809 0.00 1.84 0.75 0.86
16 T2g 678 658 0.00 0.51 0.75 0.86
16 T2g 678 658 0.00 0.51 0.75 0.86
16 T2g 678 658 0.00 0.51 0.75 0.86
17 T2u 1065 1033 0.00 0.00 0.00 0.00
17 T2u 1065 1033 0.00 0.00 0.00 0.00
17 T2u 1065 1033 0.00 0.00 0.00 0.00
18 T2u 829 805 0.00 0.00 0.00 0.00
18 T2u 829 805 0.00 0.00 0.00 0.00
18 T2u 829 805 0.00 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 29104.3 cm-1
Scaled (by 0.9704) Zero Point Vibrational Energy (zpe) 28242.8 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/aug-cc-pVDZ
ABC
0.11140 0.11140 0.11140

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pVDZ

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
C11.57361.57362.22541.57362.22542.22542.72551.09502.38012.38013.18292.38013.18293.18293.8206
C21.57362.22541.57362.22541.57362.72552.22542.38011.09503.18292.38013.18292.38013.82063.1829
C31.57362.22541.57362.22542.72551.57362.22542.38013.18291.09502.38013.18293.82062.38013.1829
C42.22541.57361.57362.72552.22542.22541.57363.18292.38012.38011.09503.82063.18293.18292.3801
C51.57362.22542.22542.72551.57361.57362.22542.38013.18293.18293.82061.09502.38012.38013.1829
C62.22541.57362.72552.22541.57362.22541.57363.18292.38013.82063.18292.38011.09503.18292.3801
C72.22542.72551.57362.22541.57362.22541.57363.18293.82062.38013.18292.38013.18291.09502.3801
C82.72552.22542.22541.57362.22541.57361.57363.82063.18293.18292.38013.18292.38012.38011.0950
H91.09502.38012.38013.18292.38013.18293.18293.82062.83802.83804.01362.83804.01364.01364.9156
H102.38011.09503.18292.38013.18292.38013.82063.18292.83804.01362.83804.01362.83804.91564.0136
H112.38013.18291.09502.38013.18293.82062.38013.18292.83804.01362.83804.01364.91562.83804.0136
H123.18292.38012.38011.09503.82063.18293.18292.38014.01362.83802.83804.91564.01364.01362.8380
H132.38013.18293.18293.82061.09502.38012.38013.18292.83804.01364.01364.91562.83802.83804.0136
H143.18292.38013.82063.18292.38011.09503.18292.38014.01362.83804.91564.01362.83804.01362.8380
H153.18293.82062.38013.18292.38013.18291.09502.38014.01364.91562.83804.01362.83804.01362.8380
H163.82063.18293.18292.38013.18292.38012.38011.09504.91564.01364.01362.83804.01362.83802.8380

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/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.856      
2 C 0.856      
3 C 0.856      
4 C 0.856      
5 C 0.856      
6 C 0.856      
7 C 0.856      
8 C 0.856      
9 H -0.856      
10 H -0.856      
11 H -0.856      
12 H -0.856      
13 H -0.856      
14 H -0.856      
15 H -0.856      
16 H -0.856      


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 -47.326 0.000 0.000
y 0.000 -47.326 0.000
z 0.000 0.000 -47.326
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 11.656 0.000 0.000
y 0.000 11.656 0.000
z 0.000 0.000 11.656


<r2> (average value of r2) Å2
<r2> 167.028
(<r2>)1/2 12.924