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

using model chemistry: B1B95/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-2685.726390
Energy at 298.15K-2685.730273
HF Energy-2685.726390
Nuclear repulsion energy141.929204
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 B1B95/6-31G
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' 3163 3017 18.64      
2 A' 1798 1715 408.08      
3 A' 1329 1267 58.07      
4 A' 620 591 159.53      
5 A' 348 332 13.39      
6 A" 919 876 8.87      

Unscaled Zero Point Vibrational Energy (zpe) 4088.4 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 3899.2 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 B1B95/6-31G
ABC
2.44709 0.13054 0.12393

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.383 -1.222 0.000
O2 -0.470 -2.067 0.000
H3 1.461 -1.371 0.000
Br4 0.000 0.721 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 Br4
C11.20011.08891.9802
O21.20012.05252.8273
H31.08892.05252.5516
Br41.98022.82732.5516

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 127.378 O2 C1 Br4 123.626
H3 C1 Br4 108.996
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.010      
2 O -0.272      
3 H 0.231      
4 Br 0.050      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.115 -0.096 0.000 2.117
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.459 -3.786 0.000
y -3.786 -31.703 0.000
z 0.000 0.000 -29.123
Traceless
 xyz
x 1.954 -3.786 0.000
y -3.786 -2.911 0.000
z 0.000 0.000 0.958
Polar
3z2-r21.915
x2-y23.243
xy-3.786
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.685 -0.116 0.000
y -0.116 6.809 0.000
z 0.000 0.000 1.378


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