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: PBEPBE/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBE/6-31G
 hartrees
Energy at 0K-3169.497265
Energy at 298.15K-3169.501709
HF Energy-3169.497265
Nuclear repulsion energy310.866504
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 PBEPBE/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 3141 3097 3.67 92.93 0.26 0.42
2 A 1260 1243 12.83 9.37 0.75 0.86
3 A 1175 1159 60.86 8.24 0.75 0.85
4 A 1029 1014 172.98 1.77 0.26 0.42
5 A 665 655 228.77 6.55 0.31 0.47
6 A 601 592 81.82 9.47 0.23 0.37
7 A 375 370 2.38 7.67 0.33 0.50
8 A 282 278 0.74 4.79 0.66 0.79
9 A 206 203 0.19 9.06 0.57 0.73

Unscaled Zero Point Vibrational Energy (zpe) 4366.5 cm-1
Scaled (by 0.9862) Zero Point Vibrational Energy (zpe) 4306.2 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 PBEPBE/6-31G
ABC
0.19793 0.06299 0.04936

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.572 0.493 0.435
Br2 -1.238 -0.198 -0.030
Cl3 1.894 -0.708 -0.069
F4 0.788 1.711 -0.212
H5 0.621 0.614 1.521

Atom - Atom Distances (Å)
  C1 Br2 Cl3 F4 H5
C11.99261.85541.39591.0940
Br21.99263.17362.78972.5535
Cl31.85543.17362.66382.4285
F41.39592.78972.66382.0573
H51.09402.55352.42852.0573

picture of fluorochlorobromomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br2 C1 Cl3 111.071 Br2 C1 F4 109.567
Br2 C1 H5 108.079 Cl3 C1 F4 109.215
Cl3 C1 H5 108.055 F4 C1 H5 110.844
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.268      
2 Br 0.126      
3 Cl 0.085      
4 F -0.213      
5 H 0.270      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.311 0.106 1.603 1.636
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.746 0.434 1.255
y 0.434 -43.425 1.415
z 1.255 1.415 -40.030
Traceless
 xyz
x -1.018 0.434 1.255
y 0.434 -2.037 1.415
z 1.255 1.415 3.056
Polar
3z2-r26.111
x2-y20.680
xy0.434
xz1.255
yz1.415


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.727 -0.228 0.130
y -0.228 4.225 0.386
z 0.130 0.386 2.790


<r2> (average value of r2) Å2
<r2> 190.885
(<r2>)1/2 13.816