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: PBEPBEultrafine/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBEultrafine/TZVP
 hartrees
Energy at 0K-2812.016908
Energy at 298.15K 
HF Energy-2812.016908
Nuclear repulsion energy254.663042
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 PBEPBEultrafine/TZVP
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' 3052 3017 12.13 94.22 0.25 0.40
2 A' 1240 1226 78.33 2.38 0.60 0.75
3 A' 1060 1048 288.22 1.81 0.25 0.40
4 A' 673 665 132.79 9.67 0.31 0.48
5 A' 562 556 6.70 2.42 0.37 0.54
6 A' 301 298 1.49 5.92 0.40 0.57
7 A" 1319 1303 12.38 5.13 0.75 0.86
8 A" 1076 1064 242.22 1.63 0.75 0.86
9 A" 300 297 0.25 2.57 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 4791.0 cm-1
Scaled (by 0.9886) Zero Point Vibrational Energy (zpe) 4736.4 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 PBEPBEultrafine/TZVP
ABC
0.33276 0.09309 0.07590

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.427 -0.930 0.000
H2 -1.522 -0.990 0.000
Br3 0.077 0.977 0.000
F4 0.077 -1.535 1.098
F5 0.077 -1.535 -1.098

Atom - Atom Distances (Å)
  C1 H2 Br3 F4 F5
C11.09751.97231.35131.3513
H21.09752.53562.01522.0152
Br31.97232.53562.74192.7419
F41.35132.01522.74192.1965
F51.35132.01522.74192.1965

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 107.954 H2 C1 F4 110.324
H2 C1 F5 110.324 Br3 C1 F4 109.755
Br3 C1 F5 109.755 F4 C1 F5 108.723
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.172      
2 H 0.142      
3 Br -0.081      
4 F -0.117      
5 F -0.117      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.419 -0.046 0.000 1.420
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.472 2.149 0.000
y 2.149 -34.301 0.000
z 0.000 0.000 -36.287
Traceless
 xyz
x 2.822 2.149 0.000
y 2.149 0.079 0.000
z 0.000 0.000 -2.901
Polar
3z2-r2-5.802
x2-y21.829
xy2.149
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.717 0.545 0.000
y 0.545 6.465 0.000
z 0.000 0.000 3.816


<r2> (average value of r2) Å2
<r2> 128.899
(<r2>)1/2 11.353