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All results from a given calculation for CH2BrI (bromoiodomethane)

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/cc-pVTZ-PP
 hartrees
Energy at 0K-752.045842
Energy at 298.15K 
HF Energy-752.045842
Nuclear repulsion energy199.758408
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 B3LYPultrafine/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' 3135 3135 0.71 88.75 0.06 0.11
2 A' 1424 1424 0.14 14.06 0.55 0.71
3 A' 1175 1175 87.19 1.99 0.20 0.34
4 A' 607 607 79.42 5.46 0.73 0.84
5 A' 514 514 6.47 21.01 0.11 0.20
6 A' 139 139 0.05 5.50 0.37 0.54
7 A" 3222 3222 2.49 44.97 0.75 0.86
8 A" 1083 1083 0.02 1.93 0.75 0.86
9 A" 763 763 5.82 1.05 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 6031.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6031.3 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 B3LYPultrafine/cc-pVTZ-PP
ABC
0.81829 0.02865 0.02783

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/cc-pVTZ-PP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 1.089 0.000
Br2 1.912 0.732 0.000
I3 -1.254 -0.668 0.000
H4 -0.231 1.644 0.898
H5 -0.231 1.644 -0.898

Atom - Atom Distances (Å)
  C1 Br2 I3 H4 H5
C11.94502.15881.08041.0804
Br21.94503.46152.49642.4964
I32.15883.46152.68292.6829
H41.08042.49642.68291.7952
H51.08042.49642.68291.7952

picture of bromoiodomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 I3 114.920 Br2 C1 H4 107.757
Br2 C1 H5 107.757 I3 C1 H4 107.079
I3 C1 H5 107.079 H4 C1 H5 112.366
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVTZ-PP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.269      
2 Br -0.039      
3 I 0.007      
4 H 0.151      
5 H 0.151      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.614 1.149 0.000 1.302
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -52.667 -0.380 0.000
y -0.380 -49.038 0.000
z 0.000 0.000 -51.978
Traceless
 xyz
x -2.159 -0.380 0.000
y -0.380 3.284 0.000
z 0.000 0.000 -1.126
Polar
3z2-r2-2.252
x2-y2-3.629
xy-0.380
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 11.968 2.118 0.000
y 2.118 8.686 0.000
z 0.000 0.000 6.729


<r2> (average value of r2) Å2
<r2> 201.473
(<r2>)1/2 14.194