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Experimental data for BH3PH3 (borane phosphine)

22 02 02 11 45
Other names
Borane-phosphine (1:1); Boron, trihydro(phosphine)​-;
INChI INChIKey SMILES IUPAC name
InChI=1S/BH6P/c1-2/h1-2H3 [BH3-][PH3+]
State Conformation
1A1 C3V
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
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 2401 2528 1974Tay/Rud:175       harmonic estimates
2 A1 2363 2490        
3 A1 1069 1093        
4 A1 978 1000        
5 A1 572 580        
7 E 2426 2548        
8 E 2408 2515        
9 E 1144 1168        
10 E 1102 1130        
11 E 826 855        
12 E 447 452        

Calculated vibrational frequencies for BH3PH3 (borane phosphine).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
  0.35329 0.35329 1973Dur/Li:2491

Calculated rotational constants for BH3PH3 (borane phosphine).
Product of moments of inertia moments of inertia
amu3Å6   0gm3 cm6
Geometric Data
picture of borane phosphine

Point Group C3v


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
rBP 1.937 0.005 1 2 1973Dur/Li:2491
rHB 1.212 0.002 1 3 1973Dur/Li:2491
rHP 1.399 0.003 2 6 1973Dur/Li:2491
aHBP 103.6 0.2 2 1 3 1973Dur/Li:2491
aHPB 116.9 0.2 1 2 6 1973Dur/Li:2491
aHBH 114.6 0.2 3 1 4 1973Dur/Li:2491
aHPH 101.3 0.2 6 2 7 1973Dur/Li:2491

Cartesians
Atom x (Å) y (Å) z (Å)
B1 0.0000 0.0000 -1.3812
P2 0.0000 0.0000 0.5559
H3 0.0000 -1.1780 -1.6661
H4 -1.0202 0.5890 -1.6661
H5 1.0202 0.5890 -1.6661
H6 0.0000 1.2476 1.1888
H7 -1.0805 -0.6238 1.1888
H8 1.0805 -0.6238 1.1888

Atom - Atom Distances bond lengths
Distances in Å
  B1 P2 H3 H4 H5 H6 H7 H8
B1   1.93701.21201.21201.21202.85682.85682.8568
P2 1.9370   2.51492.51492.51491.39901.39901.3990
H3 1.21202.5149   2.04042.04043.74633.10253.1025
H4 1.21202.51492.0404   2.04043.10253.10253.7463
H5 1.21202.51492.04042.0404   3.10253.74633.1025
H6 2.85681.39903.74633.10253.1025   2.16092.1609
H7 2.85681.39903.10253.10253.74632.1609   2.1610
H8 2.85681.39903.10253.74633.10252.16092.1610  

Calculated geometries for BH3PH3 (borane phosphine).

Experimental Bond Angles (degrees) from cartesians bond angles

atom1 atom2 atom3 angle         atom1 atom2 atom3 angle
B1 P2 H6 116.900 B1 P2 H7 116.900
B1 P2 H8 116.900 P2 B1 H3 103.600
P2 B1 H4 103.600 P2 B1 H5 103.600
H3 B1 H4 114.649 H3 B1 H5 114.649
H4 B1 H5 114.649 H6 P2 H7 101.125
H6 P2 H8 101.125 H7 P2 H8 101.125

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
B-P 1
H-B 3
H-P 3

Connectivity
Atom 1 Atom 2
B1 P2
B1 H3
B1 H4
B1 H5
P2 H6
P2 H7
P2 H8
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1   1A1

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
10.100       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 1A1 C3v True 0.000 0.000 4.000 4.000 1973Dur/Li:2491 ± 0.03 C3v 1 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 BH3PH3 (borane phosphine).
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 1A1 C3v True       C3v 1 1

Calculated electric quadrupole moments for BH3PH3 (borane phosphine).

References
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squib reference DOI
1973Dur/Li:2491 JR Durig, YS Li, LA Carreira, JD Odom "Microwave Spectrum, Structure, Dipole Moment, and Barrier to Internal Rotation of Phophine-Borane" J. Am. Chem. Soc. 95, 1973, 2491 10.1021/ja00789a013
1974Tay/Rud:175 RC Taylor, RW Rudolph, RJ Wyma, VD Dunning "Spectroscopic Studies of Lewis Acid-base Complexes III: Vibrational Frequencies, Assignments and Normal Coordinates Analyses for Isotopic Varieties of Phosphine Borane and Trifluorophosphine Borane" J. Raman. Spec. 2 (1974) 175-192 10.1002/jrs.1250020208
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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