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

using model chemistry: BLYP/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 BLYP/6-31G**
 hartrees
Energy at 0K-418.327391
Energy at 298.15K-418.331445
HF Energy-418.327391
Nuclear repulsion energy60.460602
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 BLYP/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' 3651 3623 19.40      
2 A' 2197 2180 155.99      
3 A' 1130 1121 8.87      
4 A' 1103 1095 66.12      
5 A' 878 871 49.69      
6 A' 745 739 115.00      
7 A" 2206 2189 200.42      
8 A" 857 851 15.62      
9 A" 413 410 109.38      

Unscaled Zero Point Vibrational Energy (zpe) 6589.5 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 6538.7 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 BLYP/6-31G**
ABC
3.58332 0.46655 0.46139

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.109 -0.576 0.000
O2 -0.109 1.115 0.000
H3 0.792 1.493 0.000
H4 0.862 -0.882 1.033
H5 0.862 -0.882 -1.033

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.69112.25741.45071.4507
O21.69110.97792.44932.4493
H32.25740.97792.59132.5913
H41.45072.44932.59132.0656
H51.45072.44932.59132.0656

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 112.768 O2 P1 H4 102.177
O2 P1 H5 102.177 H4 P1 H5 90.783
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.369      
2 O -0.568      
3 H 0.309      
4 H -0.055      
5 H -0.055      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.196 0.050 0.000 2.196
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.173 1.536 0.000
y 1.536 -19.458 0.000
z 0.000 0.000 -20.031
Traceless
 xyz
x -0.428 1.536 0.000
y 1.536 0.644 0.000
z 0.000 0.000 -0.215
Polar
3z2-r2-0.431
x2-y2-0.715
xy1.536
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.413 -0.277 0.000
y -0.277 3.918 0.000
z 0.000 0.000 3.558


<r2> (average value of r2) Å2
<r2> 35.655
(<r2>)1/2 5.971

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at BLYP/6-31G**
 hartrees
Energy at 0K-418.328848
Energy at 298.15K-418.332698
HF Energy-418.328848
Nuclear repulsion energy60.338415
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 BLYP/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' 3694 3665 55.40      
2 A' 2262 2245 124.71      
3 A' 1137 1129 116.73      
4 A' 1130 1121 29.80      
5 A' 889 883 15.53      
6 A' 738 732 90.64      
7 A" 2264 2246 153.53      
8 A" 894 887 0.40      
9 A" 225 223 83.63      

Unscaled Zero Point Vibrational Energy (zpe) 6616.0 cm-1
Scaled (by 0.9923) Zero Point Vibrational Energy (zpe) 6565.1 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 BLYP/6-31G**
ABC
3.60050 0.46353 0.45859

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.040 -0.584 0.000
O2 0.040 1.122 0.000
H3 0.976 1.397 0.000
H4 -0.943 -0.806 1.032
H5 -0.943 -0.806 -1.032

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.70552.19111.44151.4415
O21.70550.97602.39662.3966
H32.19110.97603.09803.0980
H41.44152.39663.09802.0631
H51.44152.39663.09802.0631

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 106.392 O2 P1 H4 98.863
O2 P1 H5 98.863 H4 P1 H5 91.390
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.328      
2 O -0.570      
3 H 0.312      
4 H -0.035      
5 H -0.035      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.735 -0.131 0.000 0.747
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.218 3.763 0.000
y 3.763 -20.153 0.000
z 0.000 0.000 -19.906
Traceless
 xyz
x 0.811 3.763 0.000
y 3.763 -0.591 0.000
z 0.000 0.000 -0.221
Polar
3z2-r2-0.441
x2-y20.935
xy3.763
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.567 0.711 0.000
y 0.711 3.878 0.000
z 0.000 0.000 3.563


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