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Experimental data for BF3 (Borane, trifluoro-)

22 02 02 11 45
Other names
Borane, trifluoro-; Boron fluoride; Boron fluoride (BF3); Boron trifluoride; Fluorure de bore; Trifluoroboron; Trifluoroborane;
INChI INChIKey SMILES IUPAC name
InChI=1S/BF3/c2-1(3)4 WTEOIRVLGSZEPR-UHFFFAOYSA-N FB(F)F Trifluoroborane
State Conformation
1A' D3H
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
Hfg(298.15K) enthalpy of formation -1136.00 0.80 kJ mol-1 CODATA
Hfg(0K) enthalpy of formation -1133.19 0.80 kJ mol-1 CODATA
Entropy (298.15K) entropy 254.42 0.20 J K-1 mol-1 CODATA
Integrated Heat Capacity (0 to 298.15K) integrated heat capacity 11.65 0.02 kJ mol-1 CODATA
Heat Capacity (298.15K) heat capacity 50.46   J K-1 mol-1 Gurvich
Information can also be found for this species in the NIST Chemistry Webbook
Vibrational levels (cm-1) vibrations
Mode Number Symmetry Frequency Intensity Comment Description
Fundamental(cm-1) Harmonic(cm-1) Reference (km mol-1) unc. Reference
1 A1' 888   Shim      
2 A2" 691   Shim      
3 E' 1449   Shim      
4 E' 480   Shim      

vibrational zero-point energy: 2718.5 cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for BF3 (Borane, trifluoro-).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
       

Calculated rotational constants for BF3 (Borane, trifluoro-).
Product of moments of inertia moments of inertia
amu3Å6   0gm3 cm6
Geometric Data
picture of Borane, trifluoro-

Point Group D3h


Internal coordinates
distances (r) in Å, angles (a) in degrees, dihedrals (d) in degrees
Description Value unc. Connectivity Reference Comment
Atom 1 Atom 2 Atom 3 Atom 4
rBF 1.307   1 2 1998Kuc re value
aFBF 120 2 1 3 1998Kuc

Cartesians
Atom x (Å) y (Å) z (Å)
B1 0.0000 0.0000 0.0000
F2 0.0000 1.3070 0.0000
F3 1.1319 -0.6535 0.0000
F4 -1.1319 -0.6535 0.0000

Atom - Atom Distances bond lengths
Distances in Å
  B1 F2 F3 F4
B1   1.30701.30701.3070
F2 1.3070   2.26382.2638
F3 1.30702.2638   2.2638
F4 1.30702.26382.2638  

Calculated geometries for BF3 (Borane, trifluoro-).

Experimental Bond Angles (degrees) from cartesians bond angles

atom1 atom2 atom3 angle         atom1 atom2 atom3 angle
F2 B1 F3 120.000 F2 B1 F4 120.000
F3 B1 F4 120.000

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
B-F 3

Connectivity
Atom 1 Atom 2
B1 F2
B1 F3
B1 F4
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A'

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
15.700 0.300 15.960   webbook

Electron Affinity (eV)
Electron Affinity unc. reference
2.650   webbook
Dipole, Quadrupole and Polarizability
Electric dipole moment dipole
State Config State description Conf description Exp. min. Dipole (Debye) Reference comment Point Group Components
x y z total dipole quadrupole
1 1 1A' D3h True       0.000 NSRDS-NBS10   D3h 0 1
Experimental dipole measurement abbreviations: MW microwave; DT Dielectric with Temperature variation; DR Indirect (usually an upper limit); MB Molecular beam
Calculated electric dipole moments for BF3 (Borane, trifluoro-).
Electric quadrupole moment quadrupole
State Config State description Conf description Exp. min. Quadrupole (D Å) Reference comment Point Group Components
xx yy zz dipole quadrupole
1 1 1A' D3h True -1.889 -1.889 3.777 1998Gra/Imr:49 12.6+-0.7 E-40 C m2 D3h 0 1

Calculated electric quadrupole moments for BF3 (Borane, trifluoro-).
Electric dipole polarizability (Å3) polarizability
alpha unc. Reference
2.420   1998Gus/Rui:163

Calculated electric dipole polarizability for BF3 (Borane, trifluoro-).

References
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squib reference DOI
1998Gra/Imr:49 C Graham, DA Imrie, RE Raab "Measurement of the electric quadrupole moments of CO2, CO, N2, Cl2 and BF3" Mol. Phys. 93(1), 1998, 49-56 10.1080/002689798169429
1998Gus/Rui:163 M Gussoni, R Rui, G Zerbi "Electronic and relaxation contribution to linear molecular polarizability. An analysis of the experimental values" J. Mol. Struct. 447 (1998) 163-215 10.1016/S0022-2860(97)00292-5
1998Kuc K Kuchitsu(ed) "Structure of Free Polyatomic Molecules - Basic Data" Springer, Berlin, 1998 10.1007/978-3-642-45748-7 
CODATA Cox, J.D.; Wagman, D.D.; Medvedev, V.A.CODATA Key Values for Thermodynamics. Hemisphere, New York, 1989 10.1002/bbpc.19900940121
Gurvich Gurvich, L.V.; Veyts, I. V.; Alcock, C. B., Thermodynamic Properties of Individual Substances, Fouth Edition, Hemisphere Pub. Co., New York, 1989  
NSRDS-NBS10 R. D. Nelson Jr., D. R. Lide, A. A. Maryott "Selected Values of electric dipole moments for molecules in the gas phase" NSRDS-NBS10, 1967 10.6028/NBS.NSRDS.10
Shim Shimanouchi, T. , Tables of Molecular Vibrational Frequencies, Consolidated Volu 10.6028/NBS.NSRDS.39
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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