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All results from a given calculation for CH2BrI (bromoiodomethane)

using model chemistry: M06-2X/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at M06-2X/3-21G*
 hartrees
Energy at 0K-9492.141911
Energy at 298.15K 
HF Energy-9492.141911
Nuclear repulsion energy463.936503
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 M06-2X/3-21G*
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' 3171 3004 0.16 83.96 0.08 0.14
2 A' 1491 1413 0.26 18.97 0.69 0.82
3 A' 1231 1166 70.21 2.59 0.21 0.34
4 A' 664 629 57.69 9.40 0.72 0.84
5 A' 553 524 4.08 22.31 0.13 0.24
6 A' 145 138 0.04 5.00 0.44 0.61
7 A" 3253 3081 3.63 54.12 0.75 0.86
8 A" 1139 1079 0.01 8.72 0.75 0.86
9 A" 790 748 9.28 2.35 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6218.8 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 5890.5 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 M06-2X/3-21G*
ABC
0.78233 0.02934 0.02843

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.114 0.000
Br2 1.894 0.706 0.000
I3 -1.242 -0.656 0.000
H4 -0.229 1.678 0.899
H5 -0.229 1.678 -0.899

Atom - Atom Distances (Å)
  C1 Br2 I3 H4 H5
C11.93792.16251.08581.0858
Br21.93793.41982.50262.5026
I32.16253.41982.69872.6987
H41.08582.50262.69871.7980
H51.08582.50262.69871.7980

picture of bromoiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 I3 112.912 Br2 C1 H4 108.405
Br2 C1 H5 108.405 I3 C1 H4 107.694
I3 C1 H5 107.694 H4 C1 H5 111.784
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.615      
2 Br -0.015      
3 I 0.063      
4 H 0.283      
5 H 0.283      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.491 1.260 0.000 1.353
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -53.730 -0.240 0.000
y -0.240 -50.022 0.000
z 0.000 0.000 -53.470
Traceless
 xyz
x -1.984 -0.240 0.000
y -0.240 3.578 0.000
z 0.000 0.000 -1.594
Polar
3z2-r2-3.188
x2-y2-3.708
xy-0.240
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.953 1.840 0.000
y 1.840 7.143 0.000
z 0.000 0.000 5.311


<r2> (average value of r2) Å2
<r2> 295.203
(<r2>)1/2 17.181