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

using model chemistry: M06-2X/aug-cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at M06-2X/aug-cc-pV(T+d)Z
 hartrees
Energy at 0K-418.373912
Energy at 298.15K-418.378475
HF Energy-418.373912
Nuclear repulsion energy65.951197
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 M06-2X/aug-cc-pV(T+d)Z
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 2453 2453 61.27      
2 A1 1287 1287 189.09      
3 A1 1174 1174 1.81      
4 E 2444 2444 63.40      
4 E 2444 2444 63.75      
5 E 1148 1148 21.77      
5 E 1148 1148 21.61      
6 E 869 869 25.89      
6 E 869 869 25.43      

Unscaled Zero Point Vibrational Energy (zpe) 6917.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6917.4 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 M06-2X/aug-cc-pV(T+d)Z
ABC
3.53026 0.58283 0.58283

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/aug-cc-pV(T+d)Z

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.381
O2 0.000 0.000 -1.093
H3 0.000 1.257 1.011
H4 -1.088 -0.628 1.011
H5 1.088 -0.628 1.011

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.47341.40581.40581.4058
O21.47342.45022.45022.4502
H31.40582.45022.17672.1767
H41.40582.45022.17672.1767
H51.40582.45022.17672.1767

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 116.623 O2 P1 H4 116.623
O2 P1 H5 116.623 H3 P1 H4 101.466
H3 P1 H5 101.466 H4 P1 H5 101.466
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/aug-cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.423      
2 O -0.781      
3 H 0.119      
4 H 0.119      
5 H 0.119      


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 3.854 3.854
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.894 0.000 0.000
y 0.000 -18.894 0.000
z 0.000 0.000 -22.829
Traceless
 xyz
x 1.968 0.000 0.000
y 0.000 1.968 0.000
z 0.000 0.000 -3.935
Polar
3z2-r2-7.871
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 4.017 0.000 0.000
y 0.000 3.990 -0.006
z 0.000 -0.006 4.702


<r2> (average value of r2) Å2
<r2> 32.148
(<r2>)1/2 5.670