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All results from a given calculation for BHF2 (Difluoroborane)

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 C2V 1A1
Energy calculated at HF/CEP-31G
 hartrees
Energy at 0K-51.049125
Energy at 298.15K-51.050406
Nuclear repulsion energy32.579164
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 A1 2879 2596 110.27      
2 A1 1120 1010 173.56      
3 A1 532 480 41.27      
4 B1 976 880 115.10      
5 B2 1386 1249 445.49      
6 B2 1123 1013 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 4008.5 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 3613.3 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
2.36514 0.33813 0.29584

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.480
H2 0.000 0.000 1.658
F3 0.000 1.145 -0.221
F4 0.000 -1.145 -0.221

Atom - Atom Distances (Å)
  B1 H2 F3 F4
B11.17781.34321.3432
H21.17782.20092.2009
F31.34322.20092.2909
F41.34322.20092.2909

picture of Difluoroborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 B1 F3 121.483 H2 B1 F4 121.483
F3 B1 F4 117.035
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.445      
2 H 0.104      
3 F -0.274      
4 F -0.274      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.902 1.902
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.302 0.000 0.000
y 0.000 -20.767 0.000
z 0.000 0.000 -15.391
Traceless
 xyz
x 3.777 0.000 0.000
y 0.000 -5.920 0.000
z 0.000 0.000 2.144
Polar
3z2-r24.287
x2-y26.465
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.033 0.000 0.000
y 0.000 1.644 0.000
z 0.000 0.000 1.481


<r2> (average value of r2) Å2
<r2> 33.001
(<r2>)1/2 5.745