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All results from a given calculation for C8H8 (cubane)

using model chemistry: BLYP/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes OH 1A1G
Energy calculated at BLYP/cc-pVTZ
 hartrees
Energy at 0K-309.400473
Energy at 298.15K-309.410233
HF Energy-309.400473
Nuclear repulsion energy364.590124
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 BLYP/cc-pVTZ
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 3043 3034 0.00 756.00 0.00 0.00
2 A1g 976 973 0.00 62.10 0.00 0.00
3 A2u 3007 2998 0.00 0.00 0.00 0.00
4 A2u 1020 1017 0.00 0.00 0.00 0.00
5 Eg 1062 1059 0.00 0.72 0.75 0.86
5 Eg 1062 1059 0.00 0.72 0.75 0.86
6 Eg 878 875 0.00 28.79 0.75 0.86
6 Eg 878 875 0.00 28.79 0.75 0.86
7 Eu 1145 1142 0.00 0.00 0.00 0.00
7 Eu 1145 1142 0.00 0.00 0.00 0.00
8 Eu 602 600 0.00 0.00 0.00 0.00
8 Eu 602 600 0.00 0.00 0.00 0.00
9 T1g 1127 1123 0.00 0.00 0.00 0.00
9 T1g 1127 1123 0.00 0.00 0.00 0.00
9 T1g 1127 1123 0.00 0.00 0.00 0.00
10 T1u 3024 3015 155.44 0.00 0.00 0.00
10 T1u 3024 3015 155.44 0.00 0.00 0.00
10 T1u 3024 3015 155.44 0.00 0.00 0.00
11 T1u 1219 1215 3.68 0.00 0.00 0.00
11 T1u 1219 1215 3.68 0.00 0.00 0.00
11 T1u 1219 1215 3.68 0.00 0.00 0.00
12 T1u 829 826 8.06 0.00 0.00 0.00
12 T1u 829 826 8.06 0.00 0.00 0.00
12 T1u 829 826 8.06 0.00 0.00 0.00
13 T2g 3017 3008 0.00 301.40 0.75 0.86
13 T2g 3017 3008 0.00 301.40 0.75 0.86
13 T2g 3017 3008 0.00 301.40 0.75 0.86
14 T2g 1168 1165 0.00 8.63 0.75 0.86
14 T2g 1168 1165 0.00 8.63 0.75 0.86
14 T2g 1168 1165 0.00 8.63 0.75 0.86
15 T2g 802 799 0.00 3.59 0.75 0.86
15 T2g 802 799 0.00 3.59 0.75 0.86
15 T2g 802 799 0.00 3.59 0.75 0.86
16 T2g 661 659 0.00 0.52 0.75 0.86
16 T2g 661 659 0.00 0.52 0.75 0.86
16 T2g 661 659 0.00 0.52 0.75 0.86
17 T2u 1015 1012 0.00 0.00 0.00 0.00
17 T2u 1015 1012 0.00 0.00 0.00 0.00
17 T2u 1015 1012 0.00 0.00 0.00 0.00
18 T2u 800 797 0.00 0.00 0.00 0.00
18 T2u 800 797 0.00 0.00 0.00 0.00
18 T2u 800 797 0.00 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 28202.8 cm-1
Scaled (by 0.997) Zero Point Vibrational Energy (zpe) 28118.2 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 BLYP/cc-pVTZ
ABC
0.11049 0.11049 0.11049

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

Point Group is Oh

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.791 0.791 0.791
C2 -0.791 0.791 0.791
C3 0.791 0.791 -0.791
C4 -0.791 0.791 -0.791
C5 0.791 -0.791 0.791
C6 -0.791 -0.791 0.791
C7 0.791 -0.791 -0.791
C8 -0.791 -0.791 -0.791
H9 1.422 1.422 1.422
H10 -1.422 1.422 1.422
H11 1.422 1.422 -1.422
H12 -1.422 1.422 -1.422
H13 1.422 -1.422 1.422
H14 -1.422 -1.422 1.422
H15 1.422 -1.422 -1.422
H16 -1.422 -1.422 -1.422

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.58111.58112.23601.58112.23602.23602.73851.09302.38532.38533.19142.38533.19143.19143.8315
C21.58112.23601.58112.23601.58112.73852.23602.38531.09303.19142.38533.19142.38533.83153.1914
C31.58112.23601.58112.23602.73851.58112.23602.38533.19141.09302.38533.19143.83152.38533.1914
C42.23601.58111.58112.73852.23602.23601.58113.19142.38532.38531.09303.83153.19143.19142.3853
C51.58112.23602.23602.73851.58111.58112.23602.38533.19143.19143.83151.09302.38532.38533.1914
C62.23601.58112.73852.23601.58112.23601.58113.19142.38533.83153.19142.38531.09303.19142.3853
C72.23602.73851.58112.23601.58112.23601.58113.19143.83152.38533.19142.38533.19141.09302.3853
C82.73852.23602.23601.58112.23601.58111.58113.83153.19143.19142.38533.19142.38532.38531.0930
H91.09302.38532.38533.19142.38533.19143.19143.83152.84312.84314.02082.84314.02084.02084.9244
H102.38531.09303.19142.38533.19142.38533.83153.19142.84314.02082.84314.02082.84314.92444.0208
H112.38533.19141.09302.38533.19143.83152.38533.19142.84314.02082.84314.02084.92442.84314.0208
H123.19142.38532.38531.09303.83153.19143.19142.38534.02082.84312.84314.92444.02084.02082.8431
H132.38533.19143.19143.83151.09302.38532.38533.19142.84314.02084.02084.92442.84312.84314.0208
H143.19142.38533.83153.19142.38531.09303.19142.38534.02082.84314.92444.02082.84314.02082.8431
H153.19143.83152.38533.19142.38533.19141.09302.38534.02084.92442.84314.02082.84314.02082.8431
H163.83153.19143.19142.38533.19142.38532.38531.09304.92444.02084.02082.84314.02082.84312.8431

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 BLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.068      
2 C -0.068      
3 C -0.068      
4 C -0.068      
5 C -0.068      
6 C -0.068      
7 C -0.068      
8 C -0.068      
9 H 0.068      
10 H 0.068      
11 H 0.068      
12 H 0.068      
13 H 0.068      
14 H 0.068      
15 H 0.068      
16 H 0.068      


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 -47.493 0.000 0.000
y 0.000 -47.493 0.000
z 0.000 0.000 -47.493
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 11.486 0.000 0.000
y 0.000 11.486 0.000
z 0.000 0.000 11.486


<r2> (average value of r2) Å2
<r2> 168.155
(<r2>)1/2 12.967