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

using model chemistry: HF/TZVP

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/TZVP
 hartrees
Energy at 0K-2685.751648
Energy at 298.15K-2685.755661
HF Energy-2685.751648
Nuclear repulsion energy145.505693
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/TZVP
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' 3234 2939 18.29      
2 A' 2023 1838 602.47      
3 A' 1439 1307 122.37      
4 A' 704 640 210.97      
5 A' 400 363 10.08      
6 A" 1030 936 0.61      

Unscaled Zero Point Vibrational Energy (zpe) 4414.9 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 4011.3 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/TZVP
ABC
2.55407 0.13745 0.13043

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.371 -1.201 0.000
O2 -0.458 -2.006 0.000
H3 1.442 -1.375 0.000
Br4 0.000 0.704 0.000

Atom - Atom Distances (Å)
  C1 O2 H3 Br4
C11.15541.08481.9410
O21.15542.00182.7486
H31.08482.00182.5298
Br41.94102.74862.5298

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 126.629 O2 C1 Br4 123.149
H3 C1 Br4 110.222
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.324      
2 O -0.280      
3 H 0.116      
4 Br -0.160      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.141 0.043 0.000 2.142
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.802 -4.123 0.000
y -4.123 -31.896 0.000
z 0.000 0.000 -29.414
Traceless
 xyz
x 1.853 -4.123 0.000
y -4.123 -2.788 0.000
z 0.000 0.000 0.935
Polar
3z2-r21.869
x2-y23.094
xy-4.123
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.632 -0.049 0.000
y -0.049 6.719 0.000
z 0.000 0.000 2.628


<r2> (average value of r2) Å2
<r2> 83.437
(<r2>)1/2 9.134