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

using model chemistry: B3PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3PW91/6-31G
 hartrees
Energy at 0K-418.164166
Energy at 298.15K-418.168488
HF Energy-418.164166
Nuclear repulsion energy61.264211
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 B3PW91/6-31G
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 2288 2191 141.67      
2 A1 1163 1114 119.11      
3 A1 939 900 20.08      
4 E 2265 2169 195.18      
4 E 2265 2169 195.18      
5 E 1056 1011 38.96      
5 E 1056 1011 38.95      
6 E 744 712 8.98      
6 E 744 712 8.98      

Unscaled Zero Point Vibrational Energy (zpe) 6259.5 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 5994.7 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 B3PW91/6-31G
ABC
3.37835 0.49085 0.49085

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.423
O2 0.000 0.000 -1.198
H3 0.000 1.285 1.078
H4 -1.113 -0.642 1.078
H5 1.113 -0.642 1.078

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.62081.44211.44211.4421
O21.62082.61362.61362.6136
H31.44212.61362.22512.2251
H41.44212.61362.22512.2251
H51.44212.61362.22512.2251

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 117.024 O2 P1 H4 117.024
O2 P1 H5 117.024 H3 P1 H4 100.971
H3 P1 H5 100.971 H4 P1 H5 100.971
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.713      
2 O -0.642      
3 H -0.024      
4 H -0.024      
5 H -0.024      


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 4.606 4.606
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.629 0.000 0.000
y 0.000 -19.629 0.000
z 0.000 0.000 -23.484
Traceless
 xyz
x 1.927 0.000 0.000
y 0.000 1.927 0.000
z 0.000 0.000 -3.855
Polar
3z2-r2-7.710
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 3.204 0.000 0.000
y 0.000 3.204 0.000
z 0.000 0.000 4.607


<r2> (average value of r2) Å2
<r2> 35.663
(<r2>)1/2 5.972