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 B2F4 (Diboron tetrafluoride)

using model chemistry: mPW1PW91/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1AG
Energy calculated at mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-449.232114
Energy at 298.15K-449.232613
Nuclear repulsion energy202.763375
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/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 1395 1337 0.00      
2 Ag 656 628 0.00      
3 Ag 313 300 0.00      
4 Au 24 23 0.00      
5 B1u 1134 1087 325.60      
6 B1u 513 491 51.28      
7 B2g 712 682 0.00      
8 B2u 1363 1306 646.98      
9 B2u 138 132 2.54      
10 B3g 1348 1292 0.00      
11 B3g 385 369 0.00      
12 B3u 372 357 50.81      

Unscaled Zero Point Vibrational Energy (zpe) 4176.4 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 4002.2 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 mPW1PW91/aug-cc-pVDZ
ABC
0.17303 0.08423 0.05665

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
B1 0.000 0.000 0.860
B2 0.000 0.000 -0.860
F3 0.000 1.132 1.556
F4 0.000 -1.132 1.556
F5 0.000 1.132 -1.556
F6 0.000 -1.132 -1.556

Atom - Atom Distances (Å)
  B1 B2 F3 F4 F5 F6
B11.71901.32911.32912.66732.6673
B21.71902.66732.66731.32911.3291
F31.32912.66732.26453.11113.8480
F41.32912.66732.26453.84803.1111
F52.66731.32913.11113.84802.2645
F62.66731.32913.84803.11112.2645

picture of Diboron tetrafluoride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
B1 B2 F5 121.580 B1 B2 F6 121.580
B2 B1 F3 121.580 B2 B1 F4 121.580
F3 B1 F4 116.840 F5 B2 F6 116.840
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 B 0.749      
2 B 0.749      
3 F -0.375      
4 F -0.375      
5 F -0.375      
6 F -0.375      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.425 0.000 0.000
y 0.000 -34.569 0.000
z 0.000 0.000 -35.041
Traceless
 xyz
x 7.380 0.000 0.000
y 0.000 -3.335 0.000
z 0.000 0.000 -4.044
Polar
3z2-r2-8.089
x2-y27.143
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.292 0.000 0.000
y 0.000 4.574 0.000
z 0.000 0.000 4.489


<r2> (average value of r2) Å2
<r2> 160.852
(<r2>)1/2 12.683