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 CHBrF2 (Methane, bromodifluoro-)

using model chemistry: HF/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-2807.227657
Energy at 298.15K-2807.232763
HF Energy-2807.227657
Nuclear repulsion energy260.929772
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/6-31+G**
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' 3373 3050 10.43      
2 A' 1442 1304 135.57      
3 A' 1228 1110 321.09      
4 A' 776 702 144.12      
5 A' 626 566 8.32      
6 A' 351 318 0.12      
7 A" 1510 1365 27.32      
8 A" 1278 1156 238.54      
9 A" 344 311 0.40      

Unscaled Zero Point Vibrational Energy (zpe) 5463.4 cm-1
Scaled (by 0.9042) Zero Point Vibrational Energy (zpe) 4940.0 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/6-31+G**
ABC
0.34902 0.09784 0.07983

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.424 -0.902 0.000
H2 -1.496 -0.980 0.000
Br3 0.076 0.953 0.000
F4 0.076 -1.497 1.071
F5 0.076 -1.497 -1.071

Atom - Atom Distances (Å)
  C1 H2 Br3 F4 F5
C11.07461.92141.32341.3234
H21.07462.49161.97141.9714
Br31.92142.49162.67402.6740
F41.32341.97142.67402.1419
F51.32341.97142.67402.1419

picture of Methane, bromodifluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 Br3 109.250 H2 C1 F4 110.156
H2 C1 F5 110.156 Br3 C1 F4 109.610
Br3 C1 F5 109.610 F4 C1 F5 108.041
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.628      
2 H 0.159      
3 Br -0.142      
4 F -0.322      
5 F -0.322      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.655 0.109 0.000 1.659
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.240 2.504 0.000
y 2.504 -34.816 0.000
z 0.000 0.000 -36.710
Traceless
 xyz
x 3.523 2.504 0.000
y 2.504 -0.342 0.000
z 0.000 0.000 -3.182
Polar
3z2-r2-6.363
x2-y22.576
xy2.504
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.872 0.413 0.000
y 0.413 5.752 0.000
z 0.000 0.000 3.867


<r2> (average value of r2) Å2
<r2> 123.849
(<r2>)1/2 11.129