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

using model chemistry: HF/CEP-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 HF/CEP-31G
 hartrees
Energy at 0K-43.591964
Energy at 298.15K-43.597448
HF Energy-43.591964
Nuclear repulsion energy38.279822
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/CEP-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' 3353 3023 36.51      
2 A' 1610 1451 0.90      
3 A' 1465 1320 94.79      
4 A' 1103 994 214.10      
5 A' 671 605 80.70      
6 A' 319 288 1.96      
7 A" 3469 3127 17.57      
8 A" 1324 1193 7.03      
9 A" 1018 918 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 7165.7 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 6459.2 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/CEP-31G
ABC
1.27876 0.12130 0.11324

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.539 -1.128 0.000
F2 -0.603 -1.939 0.000
Br3 0.000 0.767 0.000
H4 1.095 -1.319 0.903
H5 1.095 -1.319 -0.903

Atom - Atom Distances (Å)
  C1 F2 Br3 H4 H5
C11.40001.97021.07801.0780
F21.40002.77232.02052.0205
Br31.97022.77232.52342.5234
H41.07802.02052.52341.8066
H51.07802.02052.52341.8066

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 109.529 F2 C1 H4 108.552
F2 C1 H5 108.552 Br3 C1 H4 108.156
Br3 C1 H5 108.156 H4 C1 H5 113.841
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.159      
2 F -0.294      
3 Br 0.045      
4 H 0.204      
5 H 0.204      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.655 -0.397 0.000 2.685
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.292 -4.680 0.000
y -4.680 -28.628 0.000
z 0.000 0.000 -25.863
Traceless
 xyz
x 0.954 -4.680 0.000
y -4.680 -2.551 0.000
z 0.000 0.000 1.597
Polar
3z2-r23.193
x2-y22.336
xy-4.680
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.124 -0.750 0.000
y -0.750 5.536 0.000
z 0.000 0.000 1.759


<r2> (average value of r2) Å2
<r2> 63.551
(<r2>)1/2 7.972