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All results from a given calculation for CHFClBr (fluorochlorobromomethane)

using model chemistry: HF/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/3-21G*
 hartrees
Energy at 0K-3154.782145
Energy at 298.15K-3154.786909
HF Energy-3154.782145
Nuclear repulsion energy321.792356
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/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 3390 3059 3.68 77.59 0.28 0.44
2 A 1460 1317 18.79 7.61 0.75 0.86
3 A 1388 1253 82.57 5.47 0.70 0.83
4 A 1195 1079 125.18 4.26 0.75 0.86
5 A 812 733 218.57 11.64 0.71 0.83
6 A 711 642 37.50 16.95 0.13 0.23
7 A 429 388 1.82 5.69 0.28 0.44
8 A 323 292 1.56 3.06 0.58 0.74
9 A 245 221 0.22 4.85 0.53 0.69

Unscaled Zero Point Vibrational Energy (zpe) 4976.4 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 4491.7 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 HF/3-21G*
ABC
0.21211 0.06760 0.05298

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.561 0.455 0.423
Br2 -1.198 -0.184 -0.029
Cl3 1.816 -0.691 -0.069
F4 0.787 1.654 -0.202
H5 0.610 0.578 1.483

Atom - Atom Distances (Å)
  C1 Br2 Cl3 F4 H5
C11.92501.76931.37151.0688
Br21.92503.05682.71132.4779
Cl31.76933.05682.56412.3398
F41.37152.71132.56412.0074
H51.06882.47792.33982.0074

picture of fluorochlorobromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Cl3 111.605 Br2 C1 F4 109.522
Br2 C1 H5 108.302 Cl3 C1 F4 108.787
Cl3 C1 H5 108.534 F4 C1 H5 110.078
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.066      
2 Br -0.012      
3 Cl 0.009      
4 F -0.362      
5 H 0.299      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.430 -0.419 1.616 1.724
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.751 -0.104 1.448
y -0.104 -44.214 1.696
z 1.448 1.696 -40.015
Traceless
 xyz
x 0.364 -0.104 1.448
y -0.104 -3.331 1.696
z 1.448 1.696 2.967
Polar
3z2-r25.934
x2-y22.464
xy-0.104
xz1.448
yz1.696


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.772 -0.299 0.060
y -0.299 4.213 0.297
z 0.060 0.297 3.443


<r2> (average value of r2) Å2
<r2> 179.632
(<r2>)1/2 13.403