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All results from a given calculation for C8H8 (cubane)

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/6-311G*
 hartrees
Energy at 0K-309.518034
Energy at 298.15K-309.528034
HF Energy-309.518034
Nuclear repulsion energy366.795298
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/6-311G*
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 3018 0.00 629.78 0.00 0.00
2 A1g 1019 985 0.00 55.05 0.00 0.00
3 A2u 3086 2982 0.00 0.00 0.00 0.00
4 A2u 1052 1017 0.00 0.00 0.00 0.00
5 Eg 1115 1078 0.00 0.26 0.75 0.86
5 Eg 1115 1078 0.00 0.26 0.75 0.86
6 Eg 914 883 0.00 31.30 0.75 0.86
6 Eg 914 883 0.00 31.30 0.75 0.86
7 Eu 1181 1141 0.00 0.00 0.00 0.00
7 Eu 1181 1141 0.00 0.00 0.00 0.00
8 Eu 624 603 0.00 0.00 0.00 0.00
8 Eu 624 603 0.00 0.00 0.00 0.00
9 T1g 1161 1122 0.00 0.00 0.00 0.00
9 T1g 1161 1122 0.00 0.00 0.00 0.00
9 T1g 1161 1122 0.00 0.00 0.00 0.00
10 T1u 3104 2999 170.26 0.00 0.00 0.00
10 T1u 3104 2999 170.26 0.00 0.00 0.00
10 T1u 3104 2999 170.26 0.00 0.00 0.00
11 T1u 1270 1227 4.94 0.00 0.00 0.00
11 T1u 1270 1227 4.94 0.00 0.00 0.00
11 T1u 1270 1227 4.94 0.00 0.00 0.00
12 T1u 865 836 9.47 0.00 0.00 0.00
12 T1u 865 836 9.47 0.00 0.00 0.00
12 T1u 865 836 9.47 0.00 0.00 0.00
13 T2g 3096 2992 0.00 283.17 0.75 0.86
13 T2g 3096 2992 0.00 283.17 0.75 0.86
13 T2g 3096 2992 0.00 283.17 0.75 0.86
14 T2g 1224 1183 0.00 8.60 0.75 0.86
14 T2g 1224 1183 0.00 8.60 0.75 0.86
14 T2g 1224 1183 0.00 8.60 0.75 0.86
15 T2g 841 813 0.00 5.70 0.75 0.86
15 T2g 841 813 0.00 5.70 0.75 0.86
15 T2g 841 813 0.00 5.70 0.75 0.86
16 T2g 683 660 0.00 0.87 0.75 0.86
16 T2g 683 660 0.00 0.87 0.75 0.86
16 T2g 683 660 0.00 0.87 0.75 0.86
17 T2u 1070 1034 0.00 0.00 0.00 0.00
17 T2u 1070 1034 0.00 0.00 0.00 0.00
17 T2u 1070 1034 0.00 0.00 0.00 0.00
18 T2u 838 810 0.00 0.00 0.00 0.00
18 T2u 838 810 0.00 0.00 0.00 0.00
18 T2u 838 810 0.00 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 29204.1 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 28219.9 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 B3LYPultrafine/6-311G*
ABC
0.11186 0.11186 0.11186

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/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 1.415 1.415 1.415
H10 -1.415 1.415 1.415
H11 1.415 1.415 -1.415
H12 -1.415 1.415 -1.415
H13 1.415 -1.415 1.415
H14 -1.415 -1.415 1.415
H15 1.415 -1.415 -1.415
H16 -1.415 -1.415 -1.415

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.57081.57082.22141.57082.22142.22142.72071.09012.37342.37343.17452.37343.17453.17453.8108
C21.57082.22141.57082.22141.57082.72072.22142.37341.09013.17452.37343.17452.37343.81083.1745
C31.57082.22141.57082.22142.72071.57082.22142.37343.17451.09012.37343.17453.81082.37343.1745
C42.22141.57081.57082.72072.22142.22141.57083.17452.37342.37341.09013.81083.17453.17452.3734
C51.57082.22142.22142.72071.57081.57082.22142.37343.17453.17453.81081.09012.37342.37343.1745
C62.22141.57082.72072.22141.57082.22141.57083.17452.37343.81083.17452.37341.09013.17452.3734
C72.22142.72071.57082.22141.57082.22141.57083.17453.81082.37343.17452.37343.17451.09012.3734
C82.72072.22142.22141.57082.22141.57081.57083.81083.17453.17452.37343.17452.37342.37341.0901
H91.09012.37342.37343.17452.37343.17453.17453.81082.82952.82954.00152.82954.00154.00154.9008
H102.37341.09013.17452.37343.17452.37343.81083.17452.82954.00152.82954.00152.82954.90084.0015
H112.37343.17451.09012.37343.17453.81082.37343.17452.82954.00152.82954.00154.90082.82954.0015
H123.17452.37342.37341.09013.81083.17453.17452.37344.00152.82952.82954.90084.00154.00152.8295
H132.37343.17453.17453.81081.09012.37342.37343.17452.82954.00154.00154.90082.82952.82954.0015
H143.17452.37343.81083.17452.37341.09013.17452.37344.00152.82954.90084.00152.82954.00152.8295
H153.17453.81082.37343.17452.37343.17451.09012.37344.00154.90082.82954.00152.82954.00152.8295
H163.81083.17453.17452.37343.17452.37342.37341.09014.90084.00154.00152.82954.00152.82952.8295

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/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.174      
2 C -0.174      
3 C -0.174      
4 C -0.174      
5 C -0.174      
6 C -0.174      
7 C -0.174      
8 C -0.174      
9 H 0.174      
10 H 0.174      
11 H 0.174      
12 H 0.174      
13 H 0.174      
14 H 0.174      
15 H 0.174      
16 H 0.174      


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 -46.989 0.000 0.000
y 0.000 -46.989 0.000
z 0.000 0.000 -46.989
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 10.535 0.000 0.000
y 0.000 10.535 0.000
z 0.000 0.000 10.535


<r2> (average value of r2) Å2
<r2> 166.209
(<r2>)1/2 12.892