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

using model chemistry: B3LYP/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 B3LYP/6-31G
 hartrees
Energy at 0K-418.291395
Energy at 298.15K-418.295341
HF Energy-418.291395
Nuclear repulsion energy58.230581
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 B3LYP/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3621 3483 10.70      
2 A' 2152 2071 186.99      
3 A' 1133 1090 3.17      
4 A' 1101 1060 72.22      
5 A' 859 827 45.83      
6 A' 678 653 71.77      
7 A" 2177 2095 243.92      
8 A" 810 779 10.73      
9 A" 353 340 153.82      

Unscaled Zero Point Vibrational Energy (zpe) 6442.6 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 6197.7 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 B3LYP/6-31G
ABC
3.50514 0.42434 0.42134

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.109 -0.611 0.000
O2 -0.109 1.167 0.000
H3 0.776 1.588 0.000
H4 0.867 -0.878 1.060
H5 0.867 -0.878 -1.060

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.77862.37081.46561.4656
O21.77860.98012.50232.5023
H32.37080.98012.68602.6860
H41.46562.50232.68602.1193
H51.46562.50232.68602.1193

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 115.424 O2 P1 H4 100.501
O2 P1 H5 100.501 H4 P1 H5 92.608
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.482      
2 O -0.744      
3 H 0.372      
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
  2.790 -0.682 0.000 2.872
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.654 1.955 0.000
y 1.955 -20.245 0.000
z 0.000 0.000 -20.292
Traceless
 xyz
x -0.386 1.955 0.000
y 1.955 0.228 0.000
z 0.000 0.000 0.157
Polar
3z2-r20.315
x2-y2-0.410
xy1.955
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.265 -0.295 0.000
y -0.295 4.049 0.000
z 0.000 0.000 3.495


<r2> (average value of r2) Å2
<r2> 37.937
(<r2>)1/2 6.159

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at B3LYP/6-31G
 hartrees
Energy at 0K-418.295703
Energy at 298.15K-418.299528
HF Energy-418.295703
Nuclear repulsion energy58.145542
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 B3LYP/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3661 3522 41.65      
2 A' 2241 2156 138.70      
3 A' 1142 1098 99.03      
4 A' 1127 1084 28.79      
5 A' 862 829 15.20      
6 A' 685 659 54.25      
7 A" 2257 2171 173.26      
8 A" 861 828 0.17      
9 A" 235 226 148.18      

Unscaled Zero Point Vibrational Energy (zpe) 6534.7 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 6286.4 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 B3LYP/6-31G
ABC
3.53507 0.42151 0.41857

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.040 -0.620 0.000
O2 0.040 1.174 0.000
H3 0.962 1.501 0.000
H4 -0.941 -0.795 1.055
H5 -0.941 -0.795 -1.055

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.79432.31331.45121.4512
O21.79430.97842.43942.4394
H32.31330.97843.16323.1632
H41.45122.43943.16322.1101
H51.45122.43943.16322.1101

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 109.544 O2 P1 H4 96.898
O2 P1 H5 96.898 H4 P1 H5 93.278
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.420      
2 O -0.734      
3 H 0.375      
4 H -0.030      
5 H -0.030      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.738 -0.823 0.000 1.106
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.474 4.616 0.000
y 4.616 -20.946 0.000
z 0.000 0.000 -20.078
Traceless
 xyz
x 1.038 4.616 0.000
y 4.616 -1.170 0.000
z 0.000 0.000 0.132
Polar
3z2-r20.264
x2-y21.472
xy4.616
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.442 0.792 0.000
y 0.792 4.106 0.000
z 0.000 0.000 3.457


<r2> (average value of r2) Å2
<r2> 37.868
(<r2>)1/2 6.154