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

using model chemistry: HF/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/LANL2DZ
 hartrees
Energy at 0K-126.174260
Energy at 298.15K-126.178209
HF Energy-126.174260
Nuclear repulsion energy49.543026
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 HF/LANL2DZ
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' 3358 3022 17.61      
2 A' 1882 1694 585.89      
3 A' 1439 1295 147.84      
4 A' 655 589 182.79      
5 A' 375 338 8.72      
6 A" 995 895 4.00      

Unscaled Zero Point Vibrational Energy (zpe) 4351.9 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 3916.3 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 HF/LANL2DZ
ABC
2.44328 0.13119 0.12450

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.385 -1.228 0.000
O2 -0.470 -2.055 0.000
H3 1.448 -1.399 0.000
Br4 0.000 0.720 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 Br4
C11.19011.07711.9855
O21.19012.02742.8151
H31.07712.02742.5671
Br41.98552.81512.5671

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 126.750 O2 C1 Br4 122.890
H3 C1 Br4 110.360
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.011      
2 O -0.235      
3 H 0.252      
4 Br -0.028      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.563 -0.029 0.000 2.563
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.839 -4.702 0.000
y -4.702 -30.344 0.000
z 0.000 0.000 -26.568
Traceless
 xyz
x 2.617 -4.702 0.000
y -4.702 -4.141 0.000
z 0.000 0.000 1.524
Polar
3z2-r23.048
x2-y24.506
xy-4.702
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.315 -0.127 0.000
y -0.127 6.606 0.000
z 0.000 0.000 1.077


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