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 CH2BrF (Methane, bromofluoro-)

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 CS 1A'
Energy calculated at PBEPBE/6-31G**
 hartrees
Energy at 0K-2710.287231
Energy at 298.15K-2710.292607
HF Energy-2710.287231
Nuclear repulsion energy163.026276
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' 3019 2978 19.40      
2 A' 1465 1444 0.62      
3 A' 1290 1272 54.16      
4 A' 1100 1085 171.28      
5 A' 603 595 68.17      
6 A' 295 291 0.64      
7 A" 3102 3060 12.14      
8 A" 1212 1196 1.87      
9 A" 910 897 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 6497.8 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 6408.8 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
1.33322 0.12113 0.11357

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.513 -1.137 0.000
F2 -0.587 -1.940 0.000
Br3 0.000 0.767 0.000
H4 1.103 -1.289 0.915
H5 1.103 -1.289 -0.915

Atom - Atom Distances (Å)
  C1 F2 Br3 H4 H5
C11.36211.97251.09941.0994
F21.36212.77022.02942.0294
Br31.97252.77022.50672.5067
H41.09942.02942.50671.8304
H51.09942.02942.50671.8304

picture of Methane, bromofluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 Br3 111.027 F2 C1 H4 110.611
F2 C1 H5 110.611 Br3 C1 H4 105.848
Br3 C1 H5 105.848 H4 C1 H5 112.705
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 0.043      
2 F -0.228      
3 Br -0.132      
4 H 0.158      
5 H 0.158      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.482 -0.898 0.000 1.733
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.746 -2.746 0.000
y -2.746 -28.952 0.000
z 0.000 0.000 -28.929
Traceless
 xyz
x 0.194 -2.746 0.000
y -2.746 -0.115 0.000
z 0.000 0.000 -0.080
Polar
3z2-r2-0.159
x2-y20.206
xy-2.746
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.582 -0.412 0.000
y -0.412 5.747 0.000
z 0.000 0.000 3.415


<r2> (average value of r2) Å2
<r2> 92.389
(<r2>)1/2 9.612