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

using model chemistry: BLYP/3-21G

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/3-21G
 hartrees
Energy at 0K-2675.057611
Energy at 298.15K-2675.061446
HF Energy-2675.057611
Nuclear repulsion energy138.211870
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/3-21G
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' 2982 2966 36.09      
2 A' 1722 1713 316.95      
3 A' 1266 1259 44.62      
4 A' 593 589 120.70      
5 A' 331 329 8.39      
6 A" 878 873 10.21      

Unscaled Zero Point Vibrational Energy (zpe) 3886.1 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 3864.7 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/3-21G
ABC
2.44501 0.12265 0.11679

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.380 -1.267 0.000
O2 -0.469 -2.132 0.000
H3 1.474 -1.378 0.000
Br4 0.000 0.744 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 Br4
C11.21171.10032.0463
O21.21172.08472.9134
H31.10032.08472.5836
Br42.04632.91342.5836

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 128.695 O2 C1 Br4 124.832
H3 C1 Br4 106.473
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.041      
2 O -0.301      
3 H 0.238      
4 Br 0.022      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.752 -0.365 0.000 1.789
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.311 -3.119 0.000
y -3.119 -30.420 0.000
z 0.000 0.000 -28.935
Traceless
 xyz
x 1.366 -3.119 0.000
y -3.119 -1.797 0.000
z 0.000 0.000 0.431
Polar
3z2-r20.861
x2-y22.109
xy-3.119
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.511 -0.275 0.000
y -0.275 6.804 0.000
z 0.000 0.000 1.252


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