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All results from a given calculation for CH2BrI (bromoiodomethane)

using model chemistry: LSDA/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 LSDA/Def2TZVPP
 hartrees
Energy at 0K-2908.247061
Energy at 298.15K 
HF Energy-2908.247061
Nuclear repulsion energy263.720126
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 LSDA/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' 3059 3059 0.34 102.99 0.05 0.10
2 A' 1350 1350 0.37 15.13 0.60 0.75
3 A' 1117 1117 55.79 1.38 0.17 0.29
4 A' 641 641 75.55 3.61 0.73 0.84
5 A' 536 536 6.59 15.93 0.12 0.21
6 A' 141 141 0.05 5.08 0.40 0.57
7 A" 3146 3146 7.09 47.67 0.75 0.86
8 A" 1043 1043 0.02 1.63 0.75 0.86
9 A" 738 738 6.65 0.90 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5885.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5885.5 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 LSDA/Def2TZVPP
ABC
0.83263 0.02998 0.02911

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.072 0.000
Br2 1.872 0.707 0.000
I3 -1.227 -0.650 0.000
H4 -0.237 1.637 0.904
H5 -0.237 1.637 -0.904

Atom - Atom Distances (Å)
  C1 Br2 I3 H4 H5
C11.90702.11501.09181.0918
Br21.90703.38312.47552.4755
I32.11503.38312.65102.6510
H41.09182.47552.65101.8083
H51.09182.47552.65101.8083

picture of bromoiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 I3 114.425 Br2 C1 H4 108.179
Br2 C1 H5 108.179 I3 C1 H4 107.155
I3 C1 H5 107.155 H4 C1 H5 111.819
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.417      
2 Br -0.048      
3 I -0.003      
4 H 0.234      
5 H 0.234      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.625 1.143 0.000 1.303
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -52.713 -0.357 0.000
y -0.357 -48.982 0.000
z 0.000 0.000 -51.984
Traceless
 xyz
x -2.230 -0.357 0.000
y -0.357 3.366 0.000
z 0.000 0.000 -1.137
Polar
3z2-r2-2.273
x2-y2-3.731
xy-0.357
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.123 2.158 0.000
y 2.158 8.935 0.000
z 0.000 0.000 6.917


<r2> (average value of r2) Å2
<r2> 234.342
(<r2>)1/2 15.308