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All results from a given calculation for CH2BrI (bromoiodomethane)

using model chemistry: MP2=FULL/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/STO-3G
 hartrees
Energy at 0K-9434.001147
Energy at 298.15K 
HF Energy-9433.921185
Nuclear repulsion energy458.994129
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 MP2=FULL/STO-3G
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' 3382 3006 0.89 37.05 0.14 0.24
2 A' 1673 1487 0.90 16.64 0.73 0.84
3 A' 1370 1218 79.94 1.59 0.74 0.85
4 A' 807 717 37.30 9.47 0.75 0.86
5 A' 605 538 7.24 12.79 0.18 0.30
6 A' 166 148 0.46 3.98 0.55 0.71
7 A" 3500 3111 0.59 31.21 0.75 0.86
8 A" 1285 1142 0.02 14.87 0.75 0.86
9 A" 860 764 0.00 2.36 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6823.9 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 6065.7 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 MP2=FULL/STO-3G
ABC
0.83978 0.02833 0.02755

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.065 0.000
Br2 1.914 0.759 0.000
I3 -1.254 -0.685 0.000
H4 -0.254 1.667 0.895
H5 -0.254 1.667 -0.895

Atom - Atom Distances (Å)
  C1 Br2 I3 H4 H5
C11.93792.15261.10831.1083
Br21.93793.48092.51502.5150
I32.15263.48092.70742.7074
H41.10832.51502.70741.7904
H51.10832.51502.70741.7904

picture of bromoiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 I3 116.543 Br2 C1 H4 108.203
Br2 C1 H5 108.203 I3 C1 H4 107.919
I3 C1 H5 107.919 H4 C1 H5 107.751
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability