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All results from a given calculation for CH2BrI (bromoiodomethane)

using model chemistry: MP3=FULL/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 MP3=FULL/cc-pVTZ-PP
 hartrees
Energy at 0K-749.910537
Energy at 298.15K 
HF Energy-749.206535
Nuclear repulsion energy203.038289
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=FULL/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 A' 3215 3215 0.59      
2 A' 1469 1469 0.03      
3 A' 1211 1211 74.92      
4 A' 680 680 44.01      
5 A' 552 552 1.53      
6 A' 148 148 0.10      
7 A" 3274 3274 2.73      
8 A" 1123 1123 0.01      
9 A" 781 781 5.43      

Unscaled Zero Point Vibrational Energy (zpe) 6226.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6226.4 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=FULL/cc-pVTZ-PP
ABC
0.82840 0.02975 0.02887

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/cc-pVTZ-PP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.079 0.000
Br2 1.880 0.707 0.000
I3 -1.233 -0.651 0.000
H4 -0.228 1.638 0.888
H5 -0.228 1.638 -0.888

Atom - Atom Distances (Å)
  C1 Br2 I3 H4 H5
C11.91662.12461.07391.0739
Br21.91663.39692.46952.4695
I32.12463.39692.65352.6535
H41.07392.46952.65351.7761
H51.07392.46952.65351.7761

picture of bromoiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 I3 114.301 Br2 C1 H4 107.995
Br2 C1 H5 107.995 I3 C1 H4 107.523
I3 C1 H5 107.523 H4 C1 H5 111.568
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability