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

using model chemistry: B1B95/STO-3G

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/STO-3G
 hartrees
Energy at 0K-413.353872
Energy at 298.15K-413.358083
HF Energy-413.353872
Nuclear repulsion energy62.662612
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/STO-3G
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 2613 2307 111.68      
2 A1 1341 1184 138.40      
3 A1 1017 898 6.27      
4 E 2560 2260 121.31      
4 E 2560 2260 121.33      
5 E 1245 1100 34.18      
5 E 1245 1100 34.19      
6 E 674 595 17.18      
6 E 674 595 17.18      

Unscaled Zero Point Vibrational Energy (zpe) 6963.8 cm-1
Scaled (by 0.883) Zero Point Vibrational Energy (zpe) 6149.0 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/STO-3G
ABC
3.61066 0.51370 0.51370

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/STO-3G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.000 0.000 0.403
O2 0.000 0.000 -1.171
H3 0.000 1.243 1.107
H4 -1.076 -0.621 1.107
H5 1.076 -0.621 1.107

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.57341.42841.42841.4284
O21.57342.59472.59472.5947
H31.42842.59472.15232.1523
H41.42842.59472.15232.1523
H51.42842.59472.15232.1523

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 119.544 O2 P1 H4 119.544
O2 P1 H5 119.544 H3 P1 H4 97.776
H3 P1 H5 97.776 H4 P1 H5 97.776
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.652      
2 O -0.429      
3 H -0.074      
4 H -0.074      
5 H -0.074      


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 2.744 2.744
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.448 0.000 0.000
y 0.000 -17.448 0.000
z 0.000 0.000 -20.327
Traceless
 xyz
x 1.440 0.000 0.000
y 0.000 1.440 0.000
z 0.000 0.000 -2.880
Polar
3z2-r2-5.760
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 1.585 0.000 0.000
y 0.000 1.585 0.000
z 0.000 0.000 2.718


<r2> (average value of r2) Å2
<r2> 33.203
(<r2>)1/2 5.762