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: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-2710.962911
Energy at 298.15K-2710.968354
HF Energy-2710.962911
Nuclear repulsion energy164.973070
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 mPW1PW91/6-31G*
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' 3143 2981 19.51      
2 A' 1537 1458 0.53      
3 A' 1366 1295 68.92      
4 A' 1152 1093 176.73      
5 A' 646 612 69.22      
6 A' 312 296 0.45      
7 A" 3228 3061 10.41      
8 A" 1273 1207 2.61      
9 A" 956 906 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 6806.7 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 6454.8 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 mPW1PW91/6-31G*
ABC
1.35420 0.12432 0.11646

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.510 -1.121 0.000
F2 -0.583 -1.914 0.000
Br3 0.000 0.758 0.000
H4 1.092 -1.283 0.905
H5 1.092 -1.283 -0.905

Atom - Atom Distances (Å)
  C1 F2 Br3 H4 H5
C11.35041.94691.08841.0884
F21.35042.73462.00602.0060
Br31.94692.73462.48572.4857
H41.08842.00602.48571.8103
H51.08842.00602.48571.8103

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 110.767 F2 C1 H4 110.215
F2 C1 H5 110.215 Br3 C1 H4 106.502
Br3 C1 H5 106.502 H4 C1 H5 112.526
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.024      
2 F -0.262      
3 Br -0.131      
4 H 0.209      
5 H 0.209      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.619 -0.819 0.000 1.814
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.678 -2.989 0.000
y -2.989 -29.121 0.000
z 0.000 0.000 -28.805
Traceless
 xyz
x 0.284 -2.989 0.000
y -2.989 -0.379 0.000
z 0.000 0.000 0.095
Polar
3z2-r20.189
x2-y20.442
xy-2.989
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.460 -0.423 0.000
y -0.423 5.459 0.000
z 0.000 0.000 3.310


<r2> (average value of r2) Å2
<r2> 90.579
(<r2>)1/2 9.517