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All results from a given calculation for CH2BrI (bromoiodomethane)

using model chemistry: BLYP/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 BLYP/Def2TZVPP
 hartrees
Energy at 0K-2911.133254
Energy at 298.15K 
HF Energy-2911.133254
Nuclear repulsion energy255.579198
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 BLYP/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' 3064 3064 0.81 97.63 0.06 0.11
2 A' 1381 1381 0.32 16.97 0.55 0.71
3 A' 1133 1133 84.00 1.68 0.23 0.37
4 A' 557 557 91.43 5.04 0.61 0.76
5 A' 481 481 14.84 19.26 0.14 0.24
6 A' 133 133 0.03 6.66 0.38 0.55
7 A" 3153 3153 1.96 47.65 0.75 0.86
8 A" 1045 1045 0.01 1.37 0.75 0.86
9 A" 736 736 5.94 1.04 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5841.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 5841.5 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 BLYP/Def2TZVPP
ABC
0.81085 0.02791 0.02713

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.095 0.000
Br2 1.935 0.746 0.000
I3 -1.269 -0.679 0.000
H4 -0.234 1.648 0.905
H5 -0.234 1.648 -0.905

Atom - Atom Distances (Å)
  C1 Br2 I3 H4 H5
C11.96652.18121.08641.0864
Br21.96653.50682.51752.5175
I32.18123.50682.70332.7033
H41.08642.51752.70331.8107
H51.08642.51752.70331.8107

picture of bromoiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 I3 115.347 Br2 C1 H4 107.580
Br2 C1 H5 107.580 I3 C1 H4 106.800
I3 C1 H5 106.800 H4 C1 H5 112.892
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.300      
2 Br -0.072      
3 I -0.012      
4 H 0.192      
5 H 0.192      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.674 1.114 0.000 1.302
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -53.258 -0.381 0.000
y -0.381 -49.482 0.000
z 0.000 0.000 -52.453
Traceless
 xyz
x -2.291 -0.381 0.000
y -0.381 3.373 0.000
z 0.000 0.000 -1.082
Polar
3z2-r2-2.165
x2-y2-3.776
xy-0.381
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.833 2.470 0.000
y 2.470 9.250 0.000
z 0.000 0.000 6.999


<r2> (average value of r2) Å2
<r2> 249.023
(<r2>)1/2 15.780