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

using model chemistry: mPW1PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-311G*
 hartrees
Energy at 0K-2688.226016
Energy at 298.15K-2688.229939
HF Energy-2688.226016
Nuclear repulsion energy144.162839
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 mPW1PW91/6-311G*
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' 3078 2938 28.73      
2 A' 1905 1818 476.43      
3 A' 1332 1271 68.32      
4 A' 655 625 172.50      
5 A' 366 349 12.55      
6 A" 920 878 3.74      

Unscaled Zero Point Vibrational Energy (zpe) 4127.5 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 3939.3 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 mPW1PW91/6-311G*
ABC
2.52159 0.13477 0.12793

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.372 -1.206 0.000
O2 -0.461 -2.031 0.000
H3 1.457 -1.369 0.000
Br4 0.000 0.710 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 Br4
C11.17271.09651.9522
O21.17272.02892.7797
H31.09652.02892.5390
Br41.95222.77972.5390

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 126.752 O2 C1 Br4 123.698
H3 C1 Br4 109.550
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.008      
2 O -0.203      
3 H 0.251      
4 Br -0.056      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.851 -0.101 0.000 1.854
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.412 -3.445 0.000
y -3.445 -30.719 0.000
z 0.000 0.000 -29.161
Traceless
 xyz
x 1.528 -3.445 0.000
y -3.445 -1.932 0.000
z 0.000 0.000 0.404
Polar
3z2-r20.808
x2-y22.306
xy-3.445
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.432 -0.140 0.000
y -0.140 6.980 0.000
z 0.000 0.000 2.318


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