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

using model chemistry: LSDA/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at LSDA/6-31G(2df,p)
 hartrees
Energy at 0K-2682.412702
Energy at 298.15K-2682.416633
HF Energy-2682.412702
Nuclear repulsion energy146.396757
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 LSDA/6-31G(2df,p)
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' 2957 2910 18.64      
2 A' 1861 1831 331.75      
3 A' 1260 1239 26.11      
4 A' 675 664 143.99      
5 A' 374 368 4.23      
6 A" 891 877 4.42      

Unscaled Zero Point Vibrational Energy (zpe) 4008.4 cm-1
Scaled (by 0.984) Zero Point Vibrational Energy (zpe) 3944.3 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 LSDA/6-31G(2df,p)
ABC
2.51487 0.13974 0.13238

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.372 -1.166 0.000
O2 -0.462 -2.005 0.000
H3 1.470 -1.327 0.000
Br4 0.000 0.696 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 Br4
C11.18311.11051.8987
O21.18312.04812.7405
H31.11052.04812.5010
Br41.89872.74052.5010

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 126.468 O2 C1 Br4 123.897
H3 C1 Br4 109.635
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.091      
2 O -0.092      
3 H 0.188      
4 Br -0.005      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.554 0.207 0.000 1.567
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.014 -3.110 0.000
y -3.110 -30.524 0.000
z 0.000 0.000 -28.614
Traceless
 xyz
x 1.555 -3.110 0.000
y -3.110 -2.210 0.000
z 0.000 0.000 0.655
Polar
3z2-r21.310
x2-y22.510
xy-3.110
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.447 -0.144 0.000
y -0.144 7.225 0.000
z 0.000 0.000 3.475


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