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 BHF2 (Difluoroborane)

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

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/6-31G(2df,p)
 hartrees
Energy at 0K-225.020349
Energy at 298.15K-225.021616
Nuclear repulsion energy61.600782
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/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 A1 2625 2598 89.08      
2 A1 1158 1146 82.26      
3 A1 529 524 15.77      
4 B1 908 899 53.35      
5 B2 1429 1415 293.74      
6 B2 1073 1062 0.13      

Unscaled Zero Point Vibrational Energy (zpe) 3861.7 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 3821.9 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/6-31G(2df,p)
ABC
2.46929 0.34599 0.30347

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.457
H2 0.000 0.000 1.656
F3 0.000 1.132 -0.219
F4 0.000 -1.132 -0.219

Atom - Atom Distances (Å)
  B1 H2 F3 F4
B11.19961.31851.3185
H21.19962.19052.1905
F31.31852.19052.2648
F41.31852.19052.2648

picture of Difluoroborane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 B1 F3 120.814 H2 B1 F4 120.814
F3 B1 F4 118.371
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B -0.104      
2 H -0.062      
3 F 0.083      
4 F 0.083      


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 0.557 0.557
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.266 0.000 0.000
y 0.000 -17.275 0.000
z 0.000 0.000 -15.743
Traceless
 xyz
x 2.243 0.000 0.000
y 0.000 -2.270 0.000
z 0.000 0.000 0.027
Polar
3z2-r20.054
x2-y23.009
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.718 0.000 0.000
y 0.000 2.366 0.000
z 0.000 0.000 2.312


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000