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return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for (dibromofluoromethane)

using model chemistry: B2PLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B2PLYP/STO-3G
 hartrees
Energy at 0K-5227.812143
Energy at 298.15K 
HF Energy-5227.776795
Nuclear repulsion energy470.953162
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/STO-3G
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' 3297 3297 6.74 42.56 0.37 0.54
2 A' 1411 1411 38.06 6.36 0.75 0.86
3 A' 1227 1227 68.37 3.04 0.68 0.81
4 A' 661 661 22.71 9.66 0.12 0.22
5 A' 382 382 3.84 4.49 0.27 0.43
6 A' 178 178 0.55 3.92 0.58 0.73
7 A" 1308 1308 75.20 8.21 0.75 0.86
8 A" 795 795 121.95 8.44 0.75 0.86
9 A" 307 307 0.04 2.65 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4782.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4782.5 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/STO-3G
ABC
0.17386 0.03920 0.03266

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.102 0.791 0.000
H2 -1.058 1.374 0.000
F3 0.977 1.661 0.000
Br4 -0.102 -0.301 1.640
Br5 -0.102 -0.301 -1.640

Atom - Atom Distances (Å)
  C1 H2 F3 Br4 Br5
C11.12041.38531.97041.9704
H21.12042.05472.53222.5322
F31.38532.05472.77502.7750
Br41.97042.53222.77503.2804
Br51.97042.53222.77503.2804

picture of dibromofluoromethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 F3 109.723 H2 C1 Br4 106.773
H2 C1 Br5 106.773 F3 C1 Br4 110.359
F3 C1 Br5 110.359 Br4 C1 Br5 112.699
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.024      
2 H 0.101      
3 F -0.064      
4 Br -0.007      
5 Br -0.007      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.594 0.997 0.000 1.160
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.597 -1.161 0.003
y -1.161 -42.108 0.014
z 0.003 0.014 -44.494
Traceless
 xyz
x 0.705 -1.161 0.003
y -1.161 1.437 0.014
z 0.003 0.014 -2.142
Polar
3z2-r2-4.284
x2-y2-0.488
xy-1.161
xz0.003
yz0.014


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.133 0.245 -0.000
y 0.245 2.318 0.001
z -0.000 0.001 4.911


<r2> (average value of r2) Å2
<r2> 262.508
(<r2>)1/2 16.202