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All results from a given calculation for C8H8 (cubane)

using model chemistry: B3LYP/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 B3LYP/cc-pVDZ
 hartrees
Energy at 0K-309.478614
Energy at 298.15K-309.488603
HF Energy-309.478614
Nuclear repulsion energy366.023911
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/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 3124 3030 0.00 634.36 0.00 0.00
2 A1g 1022 992 0.00 56.02 0.00 0.00
3 A2u 3088 2996 0.00 0.00 0.00 0.00
4 A2u 1046 1014 0.00 0.00 0.00 0.00
5 Eg 1111 1078 0.00 0.34 0.75 0.86
5 Eg 1111 1078 0.00 0.34 0.75 0.86
6 Eg 904 877 0.00 37.53 0.75 0.86
6 Eg 904 877 0.00 37.53 0.75 0.86
7 Eu 1173 1138 0.00 0.00 0.00 0.00
7 Eu 1173 1138 0.00 0.00 0.00 0.00
8 Eu 622 604 0.00 0.00 0.00 0.00
8 Eu 622 604 0.00 0.00 0.00 0.00
9 T1g 1150 1116 0.00 0.00 0.00 0.00
9 T1g 1150 1116 0.00 0.00 0.00 0.00
9 T1g 1150 1116 0.00 0.00 0.00 0.00
10 T1u 3105 3012 133.75 0.00 0.00 0.00
10 T1u 3105 3012 133.75 0.00 0.00 0.00
10 T1u 3105 3012 133.75 0.00 0.00 0.00
11 T1u 1262 1224 2.37 0.00 0.00 0.00
11 T1u 1262 1224 2.37 0.00 0.00 0.00
11 T1u 1262 1224 2.37 0.00 0.00 0.00
12 T1u 862 836 7.34 0.00 0.00 0.00
12 T1u 862 836 7.34 0.00 0.00 0.00
12 T1u 862 836 7.34 0.00 0.00 0.00
13 T2g 3098 3005 0.00 276.45 0.75 0.86
13 T2g 3098 3005 0.00 276.45 0.75 0.86
13 T2g 3098 3005 0.00 276.45 0.75 0.86
14 T2g 1223 1187 0.00 11.07 0.75 0.86
14 T2g 1223 1187 0.00 11.07 0.75 0.86
14 T2g 1223 1187 0.00 11.07 0.75 0.86
15 T2g 836 811 0.00 7.25 0.75 0.86
15 T2g 836 811 0.00 7.25 0.75 0.86
15 T2g 836 811 0.00 7.25 0.75 0.86
16 T2g 679 659 0.00 0.38 0.75 0.86
16 T2g 679 659 0.00 0.38 0.75 0.86
16 T2g 679 659 0.00 0.38 0.75 0.86
17 T2u 1072 1039 0.00 0.00 0.00 0.00
17 T2u 1072 1039 0.00 0.00 0.00 0.00
17 T2u 1072 1039 0.00 0.00 0.00 0.00
18 T2u 828 804 0.00 0.00 0.00 0.00
18 T2u 828 804 0.00 0.00 0.00 0.00
18 T2u 828 804 0.00 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 29123.1 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 28249.4 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/cc-pVDZ
ABC
0.11143 0.11143 0.11143

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVDZ

Point Group is Oh

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.786 0.786 0.786
C2 -0.786 0.786 0.786
C3 0.786 0.786 -0.786
C4 -0.786 0.786 -0.786
C5 0.786 -0.786 0.786
C6 -0.786 -0.786 0.786
C7 0.786 -0.786 -0.786
C8 -0.786 -0.786 -0.786
H9 1.420 1.420 1.420
H10 -1.420 1.420 1.420
H11 1.420 1.420 -1.420
H12 -1.420 1.420 -1.420
H13 1.420 -1.420 1.420
H14 -1.420 -1.420 1.420
H15 1.420 -1.420 -1.420
H16 -1.420 -1.420 -1.420

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.57291.57292.22451.57292.22452.22452.72441.09792.38192.38193.18462.38193.18463.18463.8223
C21.57292.22451.57292.22451.57292.72442.22452.38191.09793.18462.38193.18462.38193.82233.1846
C31.57292.22451.57292.22452.72441.57292.22452.38193.18461.09792.38193.18463.82232.38193.1846
C42.22451.57291.57292.72442.22452.22451.57293.18462.38192.38191.09793.82233.18463.18462.3819
C51.57292.22452.22452.72441.57291.57292.22452.38193.18463.18463.82231.09792.38192.38193.1846
C62.22451.57292.72442.22451.57292.22451.57293.18462.38193.82233.18462.38191.09793.18462.3819
C72.22452.72441.57292.22451.57292.22451.57293.18463.82232.38193.18462.38193.18461.09792.3819
C82.72442.22452.22451.57292.22451.57291.57293.82233.18463.18462.38193.18462.38192.38191.0979
H91.09792.38192.38193.18462.38193.18463.18463.82232.84062.84064.01732.84064.01734.01734.9201
H102.38191.09793.18462.38193.18462.38193.82233.18462.84064.01732.84064.01732.84064.92014.0173
H112.38193.18461.09792.38193.18463.82232.38193.18462.84064.01732.84064.01734.92012.84064.0173
H123.18462.38192.38191.09793.82233.18463.18462.38194.01732.84062.84064.92014.01734.01732.8406
H132.38193.18463.18463.82231.09792.38192.38193.18462.84064.01734.01734.92012.84062.84064.0173
H143.18462.38193.82233.18462.38191.09793.18462.38194.01732.84064.92014.01732.84064.01732.8406
H153.18463.82232.38193.18462.38193.18461.09792.38194.01734.92012.84064.01732.84064.01732.8406
H163.82233.18463.18462.38193.18462.38192.38191.09794.92014.01734.01732.84064.01732.84062.8406

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/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.059      
2 C 0.059      
3 C 0.059      
4 C 0.059      
5 C 0.059      
6 C 0.059      
7 C 0.059      
8 C 0.059      
9 H -0.059      
10 H -0.059      
11 H -0.059      
12 H -0.059      
13 H -0.059      
14 H -0.059      
15 H -0.059      
16 H -0.059      


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 -47.030 0.000 0.000
y 0.000 -47.030 0.000
z 0.000 0.000 -47.030
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 10.574 0.000 0.000
y 0.000 10.574 0.000
z 0.000 0.000 10.574


<r2> (average value of r2) Å2
<r2> 166.857
(<r2>)1/2 12.917