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All results from a given calculation for CH3Br (methyl bromide)

using model chemistry: B97D3/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B97D3/aug-cc-pVDZ
 hartrees
Energy at 0K-2615.337328
Energy at 298.15K 
HF Energy-2615.337328
Nuclear repulsion energy87.843856
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 B97D3/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3025 3025 19.61 156.41 0.00 0.00
2 A1 1266 1266 21.19 0.49 0.09 0.16
3 A1 566 566 13.45 21.96 0.17 0.29
4 E 3148 3148 3.61 55.99 0.75 0.86
4 E 3148 3148 3.62 55.95 0.75 0.86
5 E 1409 1409 4.62 3.39 0.75 0.86
5 E 1409 1409 4.61 3.39 0.75 0.86
6 E 930 930 3.87 0.36 0.75 0.86
6 E 930 930 3.87 0.36 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 7914.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 7914.5 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 B97D3/aug-cc-pVDZ
ABC
5.09676 0.30974 0.30974

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/aug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.547
Br2 0.000 0.000 0.426
H3 0.000 1.046 -1.876
H4 0.906 -0.523 -1.876
H5 -0.906 -0.523 -1.876

Atom - Atom Distances (Å)
  C1 Br2 H3 H4 H5
C11.97361.09641.09641.0964
Br21.97362.52882.52882.5288
H31.09642.52881.81161.8116
H41.09642.52881.81161.8116
H51.09642.52881.81161.8116

picture of methyl bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 H3 107.453 Br2 C1 H4 107.453
Br2 C1 H5 107.453 H3 C1 H4 111.412
H3 C1 H5 111.412 H4 C1 H5 111.412
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.342      
2 Br 0.129      
3 H -0.157      
4 H -0.157      
5 H -0.157      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.969 1.969
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.927 0.000 0.000
y 0.000 -25.927 0.000
z 0.000 0.000 -22.086
Traceless
 xyz
x -1.921 0.000 0.000
y 0.000 -1.921 0.000
z 0.000 0.000 3.841
Polar
3z2-r27.682
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.757 0.000 0.000
y 0.000 4.756 -0.000
z 0.000 -0.000 6.882


<r2> (average value of r2) Å2
<r2> 49.960
(<r2>)1/2 7.068