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All results from a given calculation for H2POH (Phosphinous acid)

using model chemistry: PBEPBEultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no CS trans 1A1'
1 2 yes CS cis 1A1'

Conformer 1 (CS trans)

Jump to S1C2
Energy calculated at PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-418.095634
Energy at 298.15K-418.099705
HF Energy-418.095634
Nuclear repulsion energy60.682833
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 PBEPBEultrafine/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 A' 3628 3568 25.64      
2 A' 2239 2202 155.90      
3 A' 1139 1120 6.84      
4 A' 1109 1091 67.78      
5 A' 882 867 45.11      
6 A' 769 756 118.90      
7 A" 2250 2213 202.62      
8 A" 860 846 16.48      
9 A" 424 417 114.57      

Unscaled Zero Point Vibrational Energy (zpe) 6649.5 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 6539.8 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 PBEPBEultrafine/6-31G*
ABC
3.57916 0.47119 0.46584

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.110 -0.573 0.000
O2 -0.110 1.109 0.000
H3 0.795 1.483 0.000
H4 0.862 -0.877 1.033
H5 0.862 -0.877 -1.033

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.68252.24661.45031.4503
O21.68250.97912.44062.4406
H32.24660.97912.57702.5770
H41.45032.44062.57702.0653
H51.45032.44062.57702.0653

picture of Phosphinous acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 O2 H3 112.445 O2 P1 H4 102.093
O2 P1 H5 102.093 H4 P1 H5 90.800
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.261      
2 O -0.652      
3 H 0.409      
4 H -0.009      
5 H -0.009      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.321 0.121 0.000 2.324
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.150 1.522 0.000
y 1.522 -19.461 0.000
z 0.000 0.000 -20.054
Traceless
 xyz
x -0.392 1.522 0.000
y 1.522 0.641 0.000
z 0.000 0.000 -0.249
Polar
3z2-r2-0.498
x2-y2-0.689
xy1.522
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.378 -0.305 0.000
y -0.305 3.831 0.000
z 0.000 0.000 3.540


<r2> (average value of r2) Å2
<r2> 35.460
(<r2>)1/2 5.955

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-418.097317
Energy at 298.15K-418.101189
HF Energy-418.097317
Nuclear repulsion energy60.567280
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 PBEPBEultrafine/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 A' 3675 3614 66.93      
2 A' 2300 2262 123.79      
3 A' 1156 1136 125.98      
4 A' 1135 1116 24.30      
5 A' 885 871 17.84      
6 A' 762 750 89.47      
7 A" 2304 2266 153.84      
8 A" 894 880 0.36      
9 A" 237 233 89.03      

Unscaled Zero Point Vibrational Energy (zpe) 6673.9 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 6563.8 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 PBEPBEultrafine/6-31G*
ABC
3.59821 0.46829 0.46317

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.039 -0.581 0.000
O2 0.039 1.116 0.000
H3 0.978 1.388 0.000
H4 -0.943 -0.801 1.031
H5 -0.943 -0.801 -1.031

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.69632.18111.44121.4412
O21.69630.97702.38792.3879
H32.18110.97703.08953.0895
H41.44122.38793.08952.0624
H51.44122.38793.08952.0624

picture of Phosphinous acid state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
P1 O2 H3 106.205 O2 P1 H4 98.793
O2 P1 H5 98.793 H4 P1 H5 91.375
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.222      
2 O -0.654      
3 H 0.413      
4 H 0.010      
5 H 0.010      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.712 -0.062 0.000 0.715
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.165 3.929 0.000
y 3.929 -20.162 0.000
z 0.000 0.000 -19.931
Traceless
 xyz
x 0.882 3.929 0.000
y 3.929 -0.614 0.000
z 0.000 0.000 -0.268
Polar
3z2-r2-0.536
x2-y20.998
xy3.929
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.528 0.692 0.000
y 0.692 3.799 0.000
z 0.000 0.000 3.547


<r2> (average value of r2) Å2
<r2> 35.460
(<r2>)1/2 5.955