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

using model chemistry: HF/6-311G**

19 10 17 12 22

States and conformations

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

Conformer 1 (CS trans)

Jump to S1C2
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-417.367953
Energy at 298.15K-417.372180
HF Energy-417.367953
Nuclear repulsion energy62.387497
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 HF/6-311G**
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' 4175 3793 99.46      
2 A' 2505 2276 132.80      
3 A' 1253 1138 27.82      
4 A' 1194 1084 84.86      
5 A' 986 896 71.91      
6 A' 884 803 185.60      
7 A" 2493 2265 201.85      
8 A" 1005 913 38.42      
9 A" 454 413 144.69      

Unscaled Zero Point Vibrational Energy (zpe) 7474.0 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 6790.1 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 HF/6-311G**
ABC
3.80357 0.49539 0.49322

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.104 -0.561 0.000
O2 -0.104 1.075 0.000
H3 0.737 1.497 0.000
H4 0.822 -0.841 1.031
H5 0.822 -0.841 -1.031

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.63532.22251.41351.4135
O21.63530.94092.36372.3637
H32.22250.94092.55572.5557
H41.41352.36372.55572.0614
H51.41352.36372.55572.0614

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 116.651 O2 P1 H4 101.418
O2 P1 H5 101.418 H4 P1 H5 93.635
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.584      
2 O -0.670      
3 H 0.299      
4 H -0.106      
5 H -0.106      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.303 -0.082 0.000 2.304
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.823 1.679 0.000
y 1.679 -19.943 0.000
z 0.000 0.000 -20.139
Traceless
 xyz
x -0.782 1.679 0.000
y 1.679 0.538 0.000
z 0.000 0.000 0.244
Polar
3z2-r20.488
x2-y2-0.880
xy1.679
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.444 -0.283 0.000
y -0.283 3.455 0.000
z 0.000 0.000 3.736


<r2> (average value of r2) Å2
<r2> 34.554
(<r2>)1/2 5.878

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-417.366914
Energy at 298.15K-417.370958
HF Energy-417.366914
Nuclear repulsion energy62.292589
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 HF/6-311G**
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' 4200 3816 138.33      
2 A' 2551 2318 109.76      
3 A' 1252 1137 38.23      
4 A' 1207 1096 159.57      
5 A' 989 898 37.83      
6 A' 871 791 140.51      
7 A" 2538 2306 151.25      
8 A" 1009 916 8.41      
9 A" 282 256 124.95      

Unscaled Zero Point Vibrational Energy (zpe) 7448.7 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 6767.2 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 HF/6-311G**
ABC
3.85509 0.49222 0.49095

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.038 -0.565 0.000
O2 0.038 1.080 0.000
H3 0.910 1.429 0.000
H4 -0.890 -0.797 1.031
H5 -0.890 -0.797 -1.031

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.64422.17581.40661.4066
O21.64420.93962.33402.3340
H32.17580.93963.04313.0431
H41.40662.33403.04312.0617
H51.40662.33403.04312.0617

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 111.807 O2 P1 H4 99.525
O2 P1 H5 99.525 H4 P1 H5 94.252
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.547      
2 O -0.670      
3 H 0.297      
4 H -0.087      
5 H -0.087      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.870 -0.349 0.000 0.937
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.905 4.182 0.000
y 4.182 -20.307 0.000
z 0.000 0.000 -19.999
Traceless
 xyz
x 0.247 4.182 0.000
y 4.182 -0.355 0.000
z 0.000 0.000 0.107
Polar
3z2-r20.214
x2-y20.401
xy4.182
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.546 0.672 0.000
y 0.672 3.366 0.000
z 0.000 0.000 3.768


<r2> (average value of r2) Å2
<r2> 34.527
(<r2>)1/2 5.876