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: BLYP/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 BLYP/6-31+G**
 hartrees
Energy at 0K-2685.637671
Energy at 298.15K-2685.641505
HF Energy-2685.637671
Nuclear repulsion energy141.073746
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 BLYP/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' 2987 2971 14.67      
2 A' 1782 1773 449.19      
3 A' 1256 1250 46.24      
4 A' 602 598 157.39      
5 A' 332 330 12.56      
6 A" 860 855 7.51      

Unscaled Zero Point Vibrational Energy (zpe) 3908.9 cm-1
Scaled (by 0.9947) Zero Point Vibrational Energy (zpe) 3888.2 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 BLYP/6-31+G**
ABC
2.45530 0.12866 0.12226

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.378 -1.233 0.000
O2 -0.468 -2.081 0.000
H3 1.472 -1.387 0.000
Br4 0.000 0.727 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 Br4
C11.19791.10491.9956
O21.19792.06052.8458
H31.10492.06052.5761
Br41.99562.84582.5761

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 126.916 O2 C1 Br4 124.114
H3 C1 Br4 108.969
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.134      
2 O -0.213      
3 H 0.175      
4 Br -0.097      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.839 0.008 0.000 1.839
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.154 -3.709 0.000
y -3.709 -31.636 0.000
z 0.000 0.000 -29.788
Traceless
 xyz
x 1.558 -3.709 0.000
y -3.709 -2.165 0.000
z 0.000 0.000 0.607
Polar
3z2-r21.214
x2-y22.482
xy-3.709
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.662 -0.022 0.000
y -0.022 8.483 0.000
z 0.000 0.000 3.536


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