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

using model chemistry: B3LYP/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-418.380791
Energy at 298.15K-418.384867
HF Energy-418.380791
Nuclear repulsion energy60.955356
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/6-31+G**
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' 3828 3691 58.13      
2 A' 2315 2232 152.68      
3 A' 1151 1110 21.11      
4 A' 1080 1041 42.11      
5 A' 902 869 40.92      
6 A' 772 744 169.75      
7 A" 2321 2238 175.55      
8 A" 902 870 17.22      
9 A" 404 389 122.81      

Unscaled Zero Point Vibrational Energy (zpe) 6836.3 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 6591.6 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 B3LYP/6-31+G**
ABC
3.66136 0.47286 0.46870

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.107 -0.577 0.000
O2 -0.107 1.102 0.000
H3 0.764 1.520 0.000
H4 0.852 -0.846 1.031
H5 0.852 -0.846 -1.031

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.67902.27041.43411.4341
O21.67900.96642.40412.4041
H32.27040.96642.58212.5821
H41.43412.40412.58212.0627
H51.43412.40412.58212.0627

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 115.586 O2 P1 H4 100.819
O2 P1 H5 100.819 H4 P1 H5 91.974
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.382      
2 O -0.663      
3 H 0.360      
4 H -0.040      
5 H -0.040      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.337 -0.228 0.000 2.348
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.701 1.889 0.000
y 1.889 -20.117 0.000
z 0.000 0.000 -20.461
Traceless
 xyz
x -0.412 1.889 0.000
y 1.889 0.464 0.000
z 0.000 0.000 -0.052
Polar
3z2-r2-0.104
x2-y2-0.584
xy1.889
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.990 -0.286 0.000
y -0.286 4.297 0.000
z 0.000 0.000 4.020


<r2> (average value of r2) Å2
<r2> 35.637
(<r2>)1/2 5.970

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at B3LYP/6-31+G**
 hartrees
Energy at 0K-418.381857
Energy at 298.15K-418.385774
HF Energy-418.381857
Nuclear repulsion energy60.867215
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/6-31+G**
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' 3858 3720 103.29      
2 A' 2373 2288 115.18      
3 A' 1155 1114 21.92      
4 A' 1124 1084 115.44      
5 A' 894 862 26.52      
6 A' 765 738 123.78      
7 A" 2375 2290 129.00      
8 A" 919 886 1.99      
9 A" 258 248 121.36      

Unscaled Zero Point Vibrational Energy (zpe) 6860.2 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 6614.6 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 B3LYP/6-31+G**
ABC
3.68454 0.47047 0.46674

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.039 -0.583 0.000
O2 0.039 1.108 0.000
H3 0.947 1.437 0.000
H4 -0.926 -0.778 1.031
H5 -0.926 -0.778 -1.031

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.69022.21371.42631.4263
O21.69020.96522.35642.3564
H32.21370.96523.07853.0785
H41.42632.35643.07852.0629
H51.42632.35643.07852.0629

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 109.931 O2 P1 H4 97.888
O2 P1 H5 97.888 H4 P1 H5 92.637
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.359      
2 O -0.685      
3 H 0.368      
4 H -0.021      
5 H -0.021      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.780 -0.394 0.000 0.874
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.689 4.245 0.000
y 4.245 -20.856 0.000
z 0.000 0.000 -20.339
Traceless
 xyz
x 0.908 4.245 0.000
y 4.245 -0.841 0.000
z 0.000 0.000 -0.067
Polar
3z2-r2-0.134
x2-y21.167
xy4.245
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.096 0.411 0.000
y 0.411 4.382 0.000
z 0.000 0.000 4.030


<r2> (average value of r2) Å2
<r2> 35.631
(<r2>)1/2 5.969