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All results from a given calculation for CH2BrF (Methane, bromofluoro-)

using model chemistry: mPW1PW91/6-31G(2df,p)

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(2df,p)
 hartrees
Energy at 0K-2711.143714
Energy at 298.15K-2711.149189
HF Energy-2711.143714
Nuclear repulsion energy166.904068
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(2df,p)
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' 3103 2962 18.02      
2 A' 1511 1443 0.58      
3 A' 1351 1290 44.74      
4 A' 1147 1095 158.89      
5 A' 671 641 59.14      
6 A' 323 308 0.40      
7 A" 3181 3037 7.82      
8 A" 1264 1206 2.43      
9 A" 960 916 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 6755.6 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 6449.6 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(2df,p)
ABC
1.35724 0.12795 0.11965

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.509 -1.101 0.000
F2 -0.583 -1.886 0.000
Br3 0.000 0.747 0.000
H4 1.095 -1.277 0.902
H5 1.095 -1.277 -0.902

Atom - Atom Distances (Å)
  C1 F2 Br3 H4 H5
C11.34421.91701.09001.0900
F21.34422.69692.00012.0001
Br31.91702.69692.47142.4714
H41.09002.00012.47141.8034
H51.09002.00012.47141.8034

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 110.342 F2 C1 H4 110.068
F2 C1 H5 110.068 Br3 C1 H4 107.329
Br3 C1 H5 107.329 H4 C1 H5 111.633
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.204      
2 F -0.112      
3 Br -0.039      
4 H 0.178      
5 H 0.178      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.472 -0.779 0.000 1.665
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.664 -2.900 0.000
y -2.900 -29.139 0.000
z 0.000 0.000 -28.652
Traceless
 xyz
x 0.231 -2.900 0.000
y -2.900 -0.481 0.000
z 0.000 0.000 0.250
Polar
3z2-r20.500
x2-y20.474
xy-2.900
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.241 -0.358 0.000
y -0.358 5.935 0.000
z 0.000 0.000 4.087


<r2> (average value of r2) Å2
<r2> 88.721
(<r2>)1/2 9.419