return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CHFClBr (fluorochlorobromomethane)

using model chemistry: B2PLYP/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 B2PLYP/3-21G*
 hartrees
Energy at 0K-3157.157796
Energy at 298.15K-3157.162385
HF Energy-3156.999730
Nuclear repulsion energy318.232749
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 B2PLYP/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 3204 3204 5.35 76.41 0.28 0.43
2 A 1356 1356 15.23 8.25 0.75 0.86
3 A 1278 1278 67.88 6.37 0.73 0.84
4 A 1098 1098 118.82 1.83 0.70 0.82
5 A 714 714 223.89 6.09 0.64 0.78
6 A 662 662 39.85 11.33 0.12 0.21
7 A 395 395 2.10 5.97 0.28 0.44
8 A 296 296 0.15 3.37 0.63 0.77
9 A 225 225 0.16 5.25 0.53 0.70

Unscaled Zero Point Vibrational Energy (zpe) 4613.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4613.4 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 B2PLYP/3-21G*
ABC
0.20457 0.06656 0.05190

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.565 0.471 0.426
Br2 -1.208 -0.188 -0.030
Cl3 1.829 -0.705 -0.069
F4 0.796 1.683 -0.204
H5 0.611 0.576 1.503

Atom - Atom Distances (Å)
  C1 Br2 Cl3 F4 H5
C11.94551.79621.38521.0834
Br21.94553.08102.74652.4978
Cl31.79623.08102.60592.3662
F41.38522.74652.60592.0433
H51.08342.49782.36622.0433

picture of fluorochlorobromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Cl3 110.793 Br2 C1 F4 109.953
Br2 C1 H5 107.675 Cl3 C1 F4 109.309
Cl3 C1 H5 107.941 F4 C1 H5 111.145
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.004      
2 Br -0.013      
3 Cl 0.005      
4 F -0.263      
5 H 0.275      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.346 -0.073 1.423 1.467
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.578 0.232 1.281
y 0.232 -43.105 1.425
z 1.281 1.425 -39.848
Traceless
 xyz
x -0.101 0.232 1.281
y 0.232 -2.392 1.425
z 1.281 1.425 2.494
Polar
3z2-r24.987
x2-y21.527
xy0.232
xz1.281
yz1.425


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.045 -0.304 0.048
y -0.304 4.476 0.281
z 0.048 0.281 3.512


<r2> (average value of r2) Å2
<r2> 182.529
(<r2>)1/2 13.510