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

using model chemistry: B3LYP/daug-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 B3LYP/daug-cc-pVDZ
 hartrees
Energy at 0K-2614.074419
Energy at 298.15K 
HF Energy-2614.074419
Nuclear repulsion energy88.145651
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 B3LYP/daug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3076 3076 16.76 155.23 0.00 0.01
2 A1 1292 1292 19.30 1.40 0.10 0.18
3 A1 590 590 13.69 24.46 0.17 0.29
4 E 3193 3193 1.74 55.35 0.75 0.86
4 E 3193 3193 1.74 55.36 0.75 0.86
5 E 1435 1435 5.51 3.54 0.75 0.86
5 E 1435 1435 5.51 3.55 0.75 0.86
6 E 947 947 3.60 0.37 0.75 0.86
6 E 947 947 3.60 0.37 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8054.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8054.1 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 B3LYP/daug-cc-pVDZ
ABC
5.13839 0.31184 0.31184

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/daug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.542
Br2 0.000 0.000 0.425
H3 0.000 1.042 -1.871
H4 0.902 -0.521 -1.871
H5 -0.902 -0.521 -1.871

Atom - Atom Distances (Å)
  C1 Br2 H3 H4 H5
C11.96661.09251.09251.0925
Br21.96662.52112.52112.5211
H31.09252.52111.80421.8042
H41.09252.52111.80421.8042
H51.09252.52111.80421.8042

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 107.539 Br2 C1 H4 107.539
Br2 C1 H5 107.539 H3 C1 H4 111.332
H3 C1 H5 111.332 H4 C1 H5 111.332
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.567      
2 Br 0.206      
3 H -0.258      
4 H -0.258      
5 H -0.258      


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 -1.964 1.964
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.133 0.000 0.000
y 0.000 -26.133 0.000
z 0.000 0.000 -22.314
Traceless
 xyz
x -1.910 0.000 0.000
y 0.000 -1.910 0.000
z 0.000 0.000 3.819
Polar
3z2-r27.639
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 4.967 0.000 0.000
y 0.000 4.967 0.000
z 0.000 0.000 6.940


<r2> (average value of r2) Å2
<r2> 49.864
(<r2>)1/2 7.061