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All results from a given calculation for CH2BrI (bromoiodomethane)

using model chemistry: HSEh1PBE/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 HSEh1PBE/Def2TZVPP
 hartrees
Energy at 0K-2910.830572
Energy at 298.15K 
HF Energy-2910.830572
Nuclear repulsion energy261.818439
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 HSEh1PBE/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' 3147 3147 0.51 96.01 0.05 0.10
2 A' 1423 1423 0.00 14.78 0.56 0.72
3 A' 1179 1179 75.25 2.07 0.25 0.40
4 A' 646 646 69.91 5.70 0.74 0.85
5 A' 537 537 4.82 18.58 0.12 0.22
6 A' 143 143 0.07 4.67 0.39 0.56
7 A" 3236 3236 3.64 45.88 0.75 0.86
8 A" 1095 1095 0.00 1.43 0.75 0.86
9 A" 767 767 6.24 0.83 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6086.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6086.4 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 HSEh1PBE/Def2TZVPP
ABC
0.82756 0.02949 0.02863

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.078 0.000
Br2 1.888 0.713 0.000
I3 -1.238 -0.655 0.000
H4 -0.232 1.639 0.897
H5 -0.232 1.639 -0.897

Atom - Atom Distances (Å)
  C1 Br2 I3 H4 H5
C11.92282.12981.08271.0827
Br21.92283.41172.48072.4807
I32.12983.41172.66062.6606
H41.08272.48072.66061.7935
H51.08272.48072.66061.7935

picture of bromoiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 I3 114.580 Br2 C1 H4 107.966
Br2 C1 H5 107.966 I3 C1 H4 107.286
I3 C1 H5 107.286 H4 C1 H5 111.836
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.279      
2 Br -0.071      
3 I -0.018      
4 H 0.184      
5 H 0.184      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.674 1.170 0.000 1.350
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -52.876 -0.394 0.000
y -0.394 -48.951 0.000
z 0.000 0.000 -51.996
Traceless
 xyz
x -2.402 -0.394 0.000
y -0.394 3.485 0.000
z 0.000 0.000 -1.083
Polar
3z2-r2-2.166
x2-y2-3.925
xy-0.394
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.956 2.106 0.000
y 2.106 8.853 0.000
z 0.000 0.000 6.862


<r2> (average value of r2) Å2
<r2> 237.631
(<r2>)1/2 15.415