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All results from a given calculation for CI4 (tetraiodomethane)

using model chemistry: MP3/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes TD 1A1
Energy calculated at MP3/Def2TZVPP
 hartrees
Energy at 0K-1226.459783
Energy at 298.15K 
HF Energy-1224.463121
Nuclear repulsion energy713.527088
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 MP3/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 196 196 0.00      
2 E 88 88 0.00      
2 E 88 88 0.00      
3 T2 636 636 17.35      
3 T2 636 636 17.35      
3 T2 636 636 17.35      
4 T2 130 130 0.02      
4 T2 130 130 0.02      
4 T2 130 130 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 1334.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1334.6 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 MP3/Def2TZVPP
ABC
0.01080 0.01080 0.01080

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/Def2TZVPP

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
I2 1.240 1.240 1.240
I3 -1.240 -1.240 1.240
I4 -1.240 1.240 -1.240
I5 1.240 -1.240 -1.240

Atom - Atom Distances (Å)
  C1 I2 I3 I4 I5
C12.14812.14812.14812.1481
I22.14813.50783.50783.5078
I32.14813.50783.50783.5078
I42.14813.50783.50783.5078
I52.14813.50783.50783.5078

picture of tetraiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
I2 C1 I3 109.471 I2 C1 I4 109.471
I2 C1 I5 109.471 I3 C1 I4 109.471
I3 C1 I5 109.471 I4 C1 I5 109.471
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability