return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH2ClI (chloroiodomethane)

using model chemistry: B2PLYP=FULLultrafine/cc-pVTZ-PP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP=FULLultrafine/cc-pVTZ-PP
 hartrees
Energy at 0K-794.848082
Energy at 298.15K 
HF Energy-794.638668
Nuclear repulsion energy159.379533
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 B2PLYP=FULLultrafine/cc-pVTZ-PP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3153 3153 2.37 93.69 0.06 0.12
2 A' 1459 1459 0.01 11.34 0.64 0.78
3 A' 1222 1222 69.42 4.91 0.16 0.27
4 A' 739 739 91.54 4.62 0.74 0.85
5 A' 544 544 16.45 23.53 0.16 0.27
6 A' 194 194 0.17 6.60 0.39 0.57
7 A" 3231 3231 1.14 47.32 0.75 0.86
8 A" 1142 1142 0.00 2.58 0.75 0.86
9 A" 804 804 4.02 1.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6243.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6243.6 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 B2PLYP=FULLultrafine/cc-pVTZ-PP
ABC
0.92992 0.05307 0.05069

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/cc-pVTZ-PP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.795 -1.080 0.000
Cl2 -0.444 -2.346 0.000
I3 0.000 0.919 0.000
H4 1.391 -1.177 0.894
H5 1.391 -1.177 -0.894

Atom - Atom Distances (Å)
  C1 Cl2 I3 H4 H5
C11.77092.15141.07911.0791
Cl21.77093.29462.35232.3523
I32.15143.29462.66942.6694
H41.07912.35232.66941.7890
H51.07912.35232.66941.7890

picture of chloroiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl2 C1 I3 113.921 Cl2 C1 H4 108.814
Cl2 C1 H5 108.814 I3 C1 H4 106.679
I3 C1 H5 106.679 H4 C1 H5 111.975
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability