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All results from a given calculation for CH2BrI (bromoiodomethane)

using model chemistry: HSEh1PBE/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 HSEh1PBE/cc-pVTZ-PP
 hartrees
Energy at 0K-751.813344
Energy at 298.15K 
HF Energy-751.813344
Nuclear repulsion energy201.886578
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/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' 3147 3147 0.49 89.40 0.06 0.11
2 A' 1421 1421 0.00 13.09 0.56 0.72
3 A' 1176 1176 77.80 1.86 0.17 0.30
4 A' 644 644 70.92 4.93 0.74 0.85
5 A' 536 536 4.69 19.67 0.11 0.19
6 A' 142 142 0.06 4.89 0.37 0.54
7 A" 3235 3235 3.46 44.20 0.75 0.86
8 A" 1090 1090 0.03 1.91 0.75 0.86
9 A" 767 767 6.09 0.96 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6079.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6079.2 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/cc-pVTZ-PP
ABC
0.82478 0.02937 0.02851

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVTZ-PP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.082 0.000
Br2 1.890 0.719 0.000
I3 -1.239 -0.659 0.000
H4 -0.233 1.641 0.898
H5 -0.233 1.641 -0.898

Atom - Atom Distances (Å)
  C1 Br2 I3 H4 H5
C11.92422.13701.08251.0825
Br21.92423.41862.48202.4820
I32.13703.41862.66582.6658
H41.08252.48202.66581.7953
H51.08252.48202.66581.7953

picture of bromoiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 I3 114.555 Br2 C1 H4 107.975
Br2 C1 H5 107.975 I3 C1 H4 107.194
I3 C1 H5 107.194 H4 C1 H5 112.037
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVTZ-PP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.271      
2 Br -0.034      
3 I 0.007      
4 H 0.149      
5 H 0.149      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.583 1.181 0.000 1.317
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -52.494 -0.373 0.000
y -0.373 -48.843 0.000
z 0.000 0.000 -51.834
Traceless
 xyz
x -2.155 -0.373 0.000
y -0.373 3.321 0.000
z 0.000 0.000 -1.166
Polar
3z2-r2-2.331
x2-y2-3.651
xy-0.373
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.756 2.008 0.000
y 2.008 8.620 0.000
z 0.000 0.000 6.754


<r2> (average value of r2) Å2
<r2> 197.441
(<r2>)1/2 14.051