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All results from a given calculation for COHBr (Formyl bromide)

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-35.553598
Energy at 298.15K-35.557474
HF Energy-35.553598
Nuclear repulsion energy30.404763
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/CEP-121G
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' 3061 2983 24.93      
2 A' 1708 1664 450.00      
3 A' 1301 1268 68.13      
4 A' 613 597 157.80      
5 A' 347 338 9.31      
6 A" 883 861 11.45      

Unscaled Zero Point Vibrational Energy (zpe) 3956.4 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 3855.5 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 B3LYP/CEP-121G
ABC
2.37488 0.12640 0.12001

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.390 -1.243 0.000
O2 -0.477 -2.100 0.000
H3 1.476 -1.399 0.000
Br4 0.000 0.733 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 Br4
C11.21841.09782.0140
O21.21842.07502.8723
H31.09782.07502.5933
Br42.01402.87232.5933

picture of Formyl bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 C1 H3 127.159 O2 C1 Br4 123.509
H3 C1 Br4 109.333
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.200      
2 O -0.049      
3 H 0.188      
4 Br 0.061      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.207 -0.057 0.000 2.208
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.455 -4.078 0.000
y -4.078 -28.661 0.000
z 0.000 0.000 -26.183
Traceless
 xyz
x 1.967 -4.078 0.000
y -4.078 -2.842 0.000
z 0.000 0.000 0.875
Polar
3z2-r21.751
x2-y23.206
xy-4.078
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.777 -0.132 0.000
y -0.132 7.634 0.000
z 0.000 0.000 1.431


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000