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All results from a given calculation for C8H8 (cubane)

using model chemistry: TPSSh/daug-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 TPSSh/daug-cc-pVDZ
 hartrees
Energy at 0K-309.545579
Energy at 298.15K-309.555564
HF Energy-309.545579
Nuclear repulsion energy366.704847
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 TPSSh/daug-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 3118 3118 0.00 470.00 0.00 0.00
2 A1g 1022 1022 0.00 0.19 0.00 0.00
3 A2u 3077 3077 0.00 0.00 0.00 0.00
4 A2u 1028 1028 0.00 0.00 0.00 0.00
5 Eg 1114 1114 0.00 1.13 0.75 0.86
5 Eg 1114 1114 0.00 1.13 0.75 0.86
6 Eg 915 915 0.00 40.36 0.75 0.86
6 Eg 915 915 0.00 40.35 0.75 0.86
7 Eu 1161 1161 0.00 0.00 0.00 0.00
7 Eu 1161 1161 0.00 0.00 0.00 0.00
8 Eu 609 609 0.00 0.00 0.00 0.00
8 Eu 609 609 0.00 0.00 0.00 0.00
9 T1g 1148 1148 0.00 0.00 0.75 0.86
9 T1g 1148 1148 0.00 0.00 0.75 0.86
9 T1g 1148 1148 0.00 0.00 0.75 0.86
10 T1u 3098 3098 172.01 0.00 0.00 0.00
10 T1u 3098 3098 172.01 0.00 0.00 0.00
10 T1u 3098 3098 172.01 0.00 0.00 0.00
11 T1u 1264 1264 3.10 0.00 0.00 0.00
11 T1u 1264 1264 3.10 0.00 0.00 0.00
11 T1u 1264 1264 3.10 0.00 0.00 0.00
12 T1u 869 869 8.70 0.00 0.00 0.00
12 T1u 869 869 8.70 0.00 0.00 0.00
12 T1u 869 869 8.70 0.00 0.00 0.00
13 T2g 3088 3088 0.00 166.64 0.75 0.86
13 T2g 3088 3088 0.00 166.65 0.75 0.86
13 T2g 3088 3088 0.00 166.69 0.75 0.86
14 T2g 1217 1217 0.00 18.51 0.75 0.86
14 T2g 1217 1217 0.00 18.50 0.75 0.86
14 T2g 1217 1217 0.00 18.52 0.75 0.86
15 T2g 838 838 0.00 0.62 0.75 0.86
15 T2g 838 838 0.00 0.62 0.75 0.86
15 T2g 838 838 0.00 0.62 0.75 0.86
16 T2g 659 659 0.00 3.15 0.75 0.86
16 T2g 659 659 0.00 3.16 0.75 0.86
16 T2g 659 659 0.00 3.15 0.75 0.86
17 T2u 1067 1067 0.00 0.00 0.00 0.00
17 T2u 1067 1067 0.00 0.00 0.00 0.00
17 T2u 1067 1067 0.00 0.00 0.00 0.00
18 T2u 836 836 0.00 0.00 0.00 0.00
18 T2u 836 836 0.00 0.00 0.00 0.00
18 T2u 836 836 0.00 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 29046.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 29046.7 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 TPSSh/daug-cc-pVDZ
ABC
0.11184 0.11184 0.11184

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

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 1.417 1.417 1.417
H10 -1.417 1.417 1.417
H11 1.417 1.417 -1.417
H12 -1.417 1.417 -1.417
H13 1.417 -1.417 1.417
H14 -1.417 -1.417 1.417
H15 1.417 -1.417 -1.417
H16 -1.417 -1.417 -1.417

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 C6 C7 C8 H9 H10 H11 H12 H13 H14 H15 H16
C11.57021.57022.22061.57022.22062.22062.71961.09512.37702.37703.17822.37703.17823.17823.8147
C21.57022.22061.57022.22061.57022.71962.22062.37701.09513.17822.37703.17822.37703.81473.1782
C31.57022.22061.57022.22062.71961.57022.22062.37703.17821.09512.37703.17823.81472.37703.1782
C42.22061.57021.57022.71962.22062.22061.57023.17822.37702.37701.09513.81473.17823.17822.3770
C51.57022.22062.22062.71961.57021.57022.22062.37703.17823.17823.81471.09512.37702.37703.1782
C62.22061.57022.71962.22061.57022.22061.57023.17822.37703.81473.17822.37701.09513.17822.3770
C72.22062.71961.57022.22061.57022.22061.57023.17823.81472.37703.17822.37703.17821.09512.3770
C82.71962.22062.22061.57022.22061.57021.57023.81473.17823.17822.37703.17822.37702.37701.0951
H91.09512.37702.37703.17822.37703.17823.17823.81472.83472.83474.00882.83474.00884.00884.9098
H102.37701.09513.17822.37703.17822.37703.81473.17822.83474.00882.83474.00882.83474.90984.0088
H112.37703.17821.09512.37703.17823.81472.37703.17822.83474.00882.83474.00884.90982.83474.0088
H123.17822.37702.37701.09513.81473.17823.17822.37704.00882.83472.83474.90984.00884.00882.8347
H132.37703.17823.17823.81471.09512.37702.37703.17822.83474.00884.00884.90982.83472.83474.0088
H143.17822.37703.81473.17822.37701.09513.17822.37704.00882.83474.90984.00882.83474.00882.8347
H153.17823.81472.37703.17822.37703.17821.09512.37704.00884.90982.83474.00882.83474.00882.8347
H163.81473.17823.17822.37703.17822.37702.37701.09514.90984.00884.00882.83474.00882.83472.8347

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 TPSSh/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.572      
2 C 0.572      
3 C 0.572      
4 C 0.572      
5 C 0.572      
6 C 0.572      
7 C 0.572      
8 C 0.572      
9 H -0.572      
10 H -0.572      
11 H -0.572      
12 H -0.572      
13 H -0.572      
14 H -0.572      
15 H -0.572      
16 H -0.572      


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


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.711 0.000 0.000
y 0.000 11.711 0.000
z 0.000 0.000 11.711


<r2> (average value of r2) Å2
<r2> 166.273
(<r2>)1/2 12.895