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All results from a given calculation for CH2BrI (bromoiodomethane)

using model chemistry: MP2=FULL/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-2909.244398
Energy at 298.15K 
HF Energy-2908.113234
Nuclear repulsion energy264.288206
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/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 A' 3167 3167 0.50 92.27 0.05 0.10
2 A' 1441 1441 0.07 12.54 0.59 0.74
3 A' 1195 1195 72.16 1.47 0.26 0.41
4 A' 686 686 48.44 5.80 0.74 0.85
5 A' 557 557 2.55 15.03 0.11 0.20
6 A' 148 148 0.08 3.55 0.41 0.58
7 A" 3257 3257 3.70 44.08 0.75 0.86
8 A" 1119 1119 0.00 1.70 0.75 0.86
9 A" 778 778 6.09 0.83 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6173.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6173.4 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 MP2=FULL/Def2TZVPP
ABC
0.82739 0.03019 0.02929

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.075 0.000
Br2 1.873 0.686 0.000
I3 -1.228 -0.637 0.000
H4 -0.227 1.636 0.893
H5 -0.227 1.636 -0.893

Atom - Atom Distances (Å)
  C1 Br2 I3 H4 H5
C11.91292.10681.07851.0785
Br21.91293.37182.47192.4719
I32.10683.37182.63892.6389
H41.07852.47192.63891.7852
H51.07852.47192.63891.7852

picture of bromoiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 I3 113.946 Br2 C1 H4 108.185
Br2 C1 H5 108.185 I3 C1 H4 107.440
I3 C1 H5 107.440 H4 C1 H5 111.708
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability