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All results from a given calculation for C8H8 (cubane)

using model chemistry: B3LYP/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-309.551809
Energy at 298.15K-309.561821
HF Energy-309.551809
Nuclear repulsion energy367.452484
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/6-311+G(3df,2p)
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 3121 3018 0.00 744.71 0.00 0.00
2 A1g 1016 983 0.00 70.58 0.00 0.00
3 A2u 3086 2984 0.00 0.00 0.00 0.00
4 A2u 1050 1015 0.00 0.00 0.00 0.00
5 Eg 1110 1074 0.00 0.05 0.75 0.86
5 Eg 1110 1074 0.00 0.05 0.75 0.86
6 Eg 912 882 0.00 23.08 0.75 0.86
6 Eg 912 882 0.00 23.08 0.75 0.86
7 Eu 1184 1145 0.00 0.00 0.00 0.00
7 Eu 1184 1145 0.00 0.00 0.00 0.00
8 Eu 620 600 0.00 0.00 0.00 0.00
8 Eu 620 600 0.00 0.00 0.00 0.00
9 T1g 1166 1128 0.00 0.00 0.00 0.00
9 T1g 1166 1128 0.00 0.00 0.00 0.00
9 T1g 1166 1128 0.00 0.00 0.00 0.00
10 T1u 3103 3000 135.40 0.00 0.00 0.00
10 T1u 3103 3000 135.40 0.00 0.00 0.00
10 T1u 3103 3000 135.40 0.00 0.00 0.00
11 T1u 1267 1225 4.36 0.00 0.00 0.00
11 T1u 1267 1225 4.36 0.00 0.00 0.00
11 T1u 1267 1225 4.36 0.00 0.00 0.00
12 T1u 864 836 9.53 0.00 0.00 0.00
12 T1u 864 836 9.53 0.00 0.00 0.00
12 T1u 864 836 9.53 0.00 0.00 0.00
13 T2g 3095 2993 0.00 265.87 0.75 0.86
13 T2g 3095 2993 0.00 265.87 0.75 0.86
13 T2g 3095 2993 0.00 265.87 0.75 0.86
14 T2g 1219 1179 0.00 6.02 0.75 0.86
14 T2g 1219 1179 0.00 6.02 0.75 0.86
14 T2g 1219 1179 0.00 6.02 0.75 0.86
15 T2g 838 810 0.00 1.75 0.75 0.86
15 T2g 838 810 0.00 1.75 0.75 0.86
15 T2g 838 810 0.00 1.75 0.75 0.86
16 T2g 681 658 0.00 0.63 0.75 0.86
16 T2g 681 658 0.00 0.63 0.75 0.86
16 T2g 681 658 0.00 0.63 0.75 0.86
17 T2u 1064 1029 0.00 0.00 0.00 0.00
17 T2u 1064 1029 0.00 0.00 0.00 0.00
17 T2u 1064 1029 0.00 0.00 0.00 0.00
18 T2u 836 808 0.00 0.00 0.00 0.00
18 T2u 836 808 0.00 0.00 0.00 0.00
18 T2u 836 808 0.00 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 29162.4 cm-1
Scaled (by 0.967) Zero Point Vibrational Energy (zpe) 28200.0 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/6-311+G(3df,2p)
ABC
0.11225 0.11225 0.11225

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-311+G(3df,2p)

Point Group is Oh

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.784 0.784 0.784
C2 -0.784 0.784 0.784
C3 0.784 0.784 -0.784
C4 -0.784 0.784 -0.784
C5 0.784 -0.784 0.784
C6 -0.784 -0.784 0.784
C7 0.784 -0.784 -0.784
C8 -0.784 -0.784 -0.784
H9 1.412 1.412 1.412
H10 -1.412 1.412 1.412
H11 1.412 1.412 -1.412
H12 -1.412 1.412 -1.412
H13 1.412 -1.412 1.412
H14 -1.412 -1.412 1.412
H15 1.412 -1.412 -1.412
H16 -1.412 -1.412 -1.412

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.56831.56832.21791.56832.21792.21792.71631.08682.36822.36823.16802.36823.16803.16803.8031
C21.56832.21791.56832.21791.56832.71632.21792.36821.08683.16802.36823.16802.36823.80313.1680
C31.56832.21791.56832.21792.71631.56832.21792.36823.16801.08682.36823.16803.80312.36823.1680
C42.21791.56831.56832.71632.21792.21791.56833.16802.36822.36821.08683.80313.16803.16802.3682
C51.56832.21792.21792.71631.56831.56832.21792.36823.16803.16803.80311.08682.36822.36823.1680
C62.21791.56832.71632.21791.56832.21791.56833.16802.36823.80313.16802.36821.08683.16802.3682
C72.21792.71631.56832.21791.56832.21791.56833.16803.80312.36823.16802.36823.16801.08682.3682
C82.71632.21792.21791.56832.21791.56831.56833.80313.16803.16802.36823.16802.36822.36821.0868
H91.08682.36822.36823.16802.36823.16803.16803.80312.82322.82323.99252.82323.99253.99254.8898
H102.36821.08683.16802.36823.16802.36823.80313.16802.82323.99252.82323.99252.82324.88983.9925
H112.36823.16801.08682.36823.16803.80312.36823.16802.82323.99252.82323.99254.88982.82323.9925
H123.16802.36822.36821.08683.80313.16803.16802.36823.99252.82322.82324.88983.99253.99252.8232
H132.36823.16803.16803.80311.08682.36822.36823.16802.82323.99253.99254.88982.82322.82323.9925
H143.16802.36823.80313.16802.36821.08683.16802.36823.99252.82324.88983.99252.82323.99252.8232
H153.16803.80312.36823.16802.36823.16801.08682.36823.99254.88982.82323.99252.82323.99252.8232
H163.80313.16803.16802.36823.16802.36822.36821.08684.88983.99253.99252.82323.99252.82322.8232

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/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.114      
2 C -0.114      
3 C -0.114      
4 C -0.114      
5 C -0.114      
6 C -0.114      
7 C -0.114      
8 C -0.114      
9 H 0.114      
10 H 0.114      
11 H 0.114      
12 H 0.114      
13 H 0.114      
14 H 0.114      
15 H 0.114      
16 H 0.114      


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 -47.137 0.000 0.000
y 0.000 -47.137 0.000
z 0.000 0.000 -47.137
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 11.439 0.000 0.000
y 0.000 11.439 0.000
z 0.000 0.000 11.439


<r2> (average value of r2) Å2
<r2> 165.802
(<r2>)1/2 12.876