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

using model chemistry: B1B95/6-311G**

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 B1B95/6-311G**
 hartrees
Energy at 0K-418.403688
Energy at 298.15K-418.407820
HF Energy-418.403688
Nuclear repulsion energy61.716204
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 B1B95/6-311G**
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' 3894 3738 62.98      
2 A' 2334 2241 121.35      
3 A' 1151 1105 18.01      
4 A' 1096 1052 68.46      
5 A' 906 869 34.05      
6 A' 810 778 169.20      
7 A" 2337 2244 164.97      
8 A" 915 878 26.45      
9 A" 436 419 129.98      

Unscaled Zero Point Vibrational Energy (zpe) 6938.4 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 6661.6 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 B1B95/6-311G**
ABC
3.70842 0.48667 0.48214

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.107 -0.566 0.000
O2 -0.107 1.087 0.000
H3 0.760 1.494 0.000
H4 0.848 -0.854 1.023
H5 0.848 -0.854 -1.023

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.65262.23501.42901.4290
O21.65260.95782.39282.3928
H32.23500.95782.56292.5629
H41.42902.39282.56292.0464
H51.42902.39282.56292.0464

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 115.173 O2 P1 H4 101.632
O2 P1 H5 101.632 H4 P1 H5 91.459
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.387      
2 O -0.582      
3 H 0.292      
4 H -0.049      
5 H -0.049      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.229 0.028 0.000 2.229
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.490 1.723 0.000
y 1.723 -19.656 0.000
z 0.000 0.000 -20.130
Traceless
 xyz
x -0.597 1.723 0.000
y 1.723 0.653 0.000
z 0.000 0.000 -0.057
Polar
3z2-r2-0.113
x2-y2-0.833
xy1.723
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.738 -0.293 0.000
y -0.293 3.763 0.000
z 0.000 0.000 3.814


<r2> (average value of r2) Å2
<r2> 34.864
(<r2>)1/2 5.905

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-418.403625
Energy at 298.15K-418.407578
HF Energy-418.403625
Nuclear repulsion energy61.563457
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 B1B95/6-311G**
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' 3922 3766 103.08      
2 A' 2397 2302 95.42      
3 A' 1151 1105 45.53      
4 A' 1131 1086 94.27      
5 A' 914 877 25.72      
6 A' 802 770 115.79      
7 A" 2396 2300 120.93      
8 A" 944 906 2.53      
9 A" 263 252 105.02      

Unscaled Zero Point Vibrational Energy (zpe) 6959.2 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 6681.5 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 B1B95/6-311G**
ABC
3.72893 0.48307 0.47890

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.039 -0.572 0.000
O2 0.039 1.094 0.000
H3 0.944 1.404 0.000
H4 -0.924 -0.789 1.023
H5 -0.924 -0.789 -1.023

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.66642.17351.42131.4213
O21.66640.95672.34932.3493
H32.17350.95673.05683.0568
H41.42132.34933.05682.0454
H51.42132.34933.05682.0454

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 108.891 O2 P1 H4 98.771
O2 P1 H5 98.771 H4 P1 H5 92.035
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.344      
2 O -0.579      
3 H 0.286      
4 H -0.025      
5 H -0.025      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.869 -0.259 0.000 0.907
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.473 3.928 0.000
y 3.928 -20.225 0.000
z 0.000 0.000 -19.977
Traceless
 xyz
x 0.628 3.928 0.000
y 3.928 -0.500 0.000
z 0.000 0.000 -0.128
Polar
3z2-r2-0.256
x2-y20.752
xy3.928
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.853 0.661 0.000
y 0.661 3.690 0.000
z 0.000 0.000 3.834


<r2> (average value of r2) Å2
<r2> 34.854
(<r2>)1/2 5.904