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All results from a given calculation for H3PO (Phosphine oxide)

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-418.395434
Energy at 298.15K-418.399907
HF Energy-418.395434
Nuclear repulsion energy65.550877
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 B1B95/6-311G**
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 2433 2336 88.95      
2 A1 1287 1236 212.57      
3 A1 1175 1128 0.26      
4 E 2410 2314 132.09      
4 E 2410 2314 132.11      
5 E 1124 1079 38.10      
5 E 1124 1079 38.09      
6 E 863 828 37.13      
6 E 863 828 37.11      

Unscaled Zero Point Vibrational Energy (zpe) 6844.1 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 6571.0 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 B1B95/6-311G**
ABC
3.54217 0.57456 0.57456

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.380
O2 0.000 0.000 -1.101
H3 0.000 1.255 1.037
H4 -1.087 -0.627 1.037
H5 1.087 -0.627 1.037

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.48081.41631.41631.4163
O21.48082.47892.47892.4789
H31.41632.47892.17312.1731
H41.41632.47892.17312.1731
H51.41632.47892.17312.1731

picture of Phosphine oxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 P1 H3 117.644 O2 P1 H4 117.644
O2 P1 H5 117.644 H3 P1 H4 100.201
H3 P1 H5 100.201 H4 P1 H5 100.201
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.717      
2 O -0.576      
3 H -0.047      
4 H -0.047      
5 H -0.047      


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 3.792 3.792
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.030 0.000 0.000
y 0.000 -19.030 0.000
z 0.000 0.000 -22.457
Traceless
 xyz
x 1.713 0.000 0.000
y 0.000 1.713 0.000
z 0.000 0.000 -3.427
Polar
3z2-r2-6.853
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.208 0.000 0.000
y 0.000 3.208 0.000
z 0.000 0.000 3.993


<r2> (average value of r2) Å2
<r2> 32.408
(<r2>)1/2 5.693