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All results from a given calculation for CI4 (tetraiodomethane)

using model chemistry: CID/cc-pVTZ-PP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes TD 1A1
Energy calculated at CID/cc-pVTZ-PP
 hartrees
Energy at 0K-1217.264414
Energy at 298.15K 
HF Energy-1216.469931
Nuclear repulsion energy715.101734
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 CID/cc-pVTZ-PP
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 203 203 0.00      
2 E 92 92 0.00      
2 E 92 92 0.00      
3 T2 671 671 16.63      
3 T2 671 671 16.63      
3 T2 671 671 16.63      
4 T2 135 135 0.01      
4 T2 135 135 0.01      
4 T2 135 135 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 1401.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1401.2 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 CID/cc-pVTZ-PP
ABC
0.01084 0.01084 0.01084

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

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
I2 1.237 1.237 1.237
I3 -1.237 -1.237 1.237
I4 -1.237 1.237 -1.237
I5 1.237 -1.237 -1.237

Atom - Atom Distances (Å)
  C1 I2 I3 I4 I5
C12.14332.14332.14332.1433
I22.14333.50013.50013.5001
I32.14333.50013.50013.5001
I42.14333.50013.50013.5001
I52.14333.50013.50013.5001

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