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All results from a given calculation for BHF2 (Difluoroborane)

using model chemistry: PBEPBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBE/3-21G
 hartrees
Energy at 0K-223.790785
Energy at 298.15K-223.792066
Nuclear repulsion energy60.247690
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/3-21G
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 2723 2698 108.44      
2 A1 1164 1153 60.94      
3 A1 524 519 16.07      
4 B1 929 921 47.48      
5 B2 1507 1493 222.12      
6 B2 1150 1139 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 3998.1 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 3961.8 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/3-21G
ABC
2.31774 0.33308 0.29123

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.481
H2 0.000 0.000 1.676
F3 0.000 1.154 -0.227
F4 0.000 -1.154 -0.227

Atom - Atom Distances (Å)
  B1 H2 F3 F4
B11.19571.35361.3536
H21.19572.22562.2256
F31.35362.22562.3082
F41.35362.22562.3082

picture of Difluoroborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 B1 F3 121.500 H2 B1 F4 121.500
F3 B1 F4 117.001
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.461      
2 H -0.037      
3 F -0.212      
4 F -0.212      


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 0.722 0.722
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.378 0.000 0.000
y 0.000 -17.876 0.000
z 0.000 0.000 -15.910
Traceless
 xyz
x 2.515 0.000 0.000
y 0.000 -2.732 0.000
z 0.000 0.000 0.217
Polar
3z2-r20.433
x2-y23.498
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.134 0.000 0.000
y 0.000 1.992 0.000
z 0.000 0.000 1.754


<r2> (average value of r2) Å2
<r2> 38.893
(<r2>)1/2 6.236