return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: wB97X-D/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at wB97X-D/6-31+G**
 hartrees
Energy at 0K-2685.627324
Energy at 298.15K-2685.631265
HF Energy-2685.627324
Nuclear repulsion energy144.758183
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 wB97X-D/6-31+G**
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' 3100 2952 16.51      
2 A' 1889 1799 486.56      
3 A' 1346 1282 60.53      
4 A' 668 636 185.20      
5 A' 378 360 7.69      
6 A" 914 871 4.78      

Unscaled Zero Point Vibrational Energy (zpe) 4147.6 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 3949.8 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 wB97X-D/6-31+G**
ABC
2.49367 0.13633 0.12927

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.375 -1.199 0.000
O2 -0.464 -2.029 0.000
H3 1.461 -1.363 0.000
Br4 0.000 0.708 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 Br4
C11.18071.09831.9434
O21.18072.03732.7762
H31.09832.03732.5347
Br41.94342.77622.5347

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 126.713 O2 C1 Br4 123.552
H3 C1 Br4 109.735
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.185      
2 O -0.249      
3 H 0.189      
4 Br -0.125      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.947 0.205 0.000 1.958
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.710 -3.848 0.000
y -3.848 -31.537 0.000
z 0.000 0.000 -29.384
Traceless
 xyz
x 1.750 -3.848 0.000
y -3.848 -2.490 0.000
z 0.000 0.000 0.739
Polar
3z2-r21.479
x2-y22.826
xy-3.848
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.344 0.017 0.000
y 0.017 7.521 0.000
z 0.000 0.000 3.298


<r2> (average value of r2) Å2
<r2> 83.914
(<r2>)1/2 9.160