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

using model chemistry: SVWN/3-21G

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 SVWN/3-21G
 hartrees
Energy at 0K-414.865613
Energy at 298.15K-414.869670
HF Energy-414.865613
Nuclear repulsion energy59.178218
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 SVWN/3-21G
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' 3365 3305 2.05      
2 A' 2038 2001 149.24      
3 A' 1150 1129 6.71      
4 A' 1073 1054 82.00      
5 A' 863 848 42.39      
6 A' 739 725 75.71      
7 A" 2052 2014 195.65      
8 A" 826 811 16.60      
9 A" 430 422 146.46      

Unscaled Zero Point Vibrational Energy (zpe) 6267.7 cm-1
Scaled (by 0.9819) Zero Point Vibrational Energy (zpe) 6154.2 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 SVWN/3-21G
ABC
3.47737 0.44625 0.44197

See section I.F.4 to change rotational constant units
Geometric Data calculated at SVWN/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.111 -0.585 0.000
O2 -0.111 1.139 0.000
H3 0.809 1.546 0.000
H4 0.867 -0.939 1.054
H5 0.867 -0.939 -1.054

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.72392.32161.48081.4808
O21.72391.00602.52652.5265
H32.32161.00602.70012.7001
H41.48082.52652.70012.1088
H51.48082.52652.70012.1088

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 113.914 O2 P1 H4 103.807
O2 P1 H5 103.807 H4 P1 H5 90.801
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at SVWN/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.302      
2 O -0.619      
3 H 0.364      
4 H -0.024      
5 H -0.024      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.836 0.198 0.000 2.843
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.653 1.664 0.000
y 1.664 -19.970 0.000
z 0.000 0.000 -20.431
Traceless
 xyz
x -0.452 1.664 0.000
y 1.664 0.572 0.000
z 0.000 0.000 -0.120
Polar
3z2-r2-0.240
x2-y2-0.683
xy1.664
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.097 -0.445 0.000
y -0.445 3.913 0.000
z 0.000 0.000 3.391


<r2> (average value of r2) Å2
<r2> 37.038
(<r2>)1/2 6.086

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at SVWN/3-21G
 hartrees
Energy at 0K-414.869722
Energy at 298.15K-414.873537
HF Energy-414.869722
Nuclear repulsion energy59.047185
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 SVWN/3-21G
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' 3433 3371 38.02      
2 A' 2123 2085 108.89      
3 A' 1159 1138 115.55      
4 A' 1114 1093 20.60      
5 A' 865 850 22.82      
6 A' 741 728 51.12      
7 A" 2130 2092 138.55      
8 A" 887 871 0.11      
9 A" 203 199 109.66      

Unscaled Zero Point Vibrational Energy (zpe) 6327.2 cm-1
Scaled (by 0.9819) Zero Point Vibrational Energy (zpe) 6212.7 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 SVWN/3-21G
ABC
3.49273 0.44275 0.43834

See section I.F.4 to change rotational constant units
Geometric Data calculated at SVWN/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.039 -0.596 0.000
O2 0.039 1.148 0.000
H3 1.001 1.431 0.000
H4 -0.951 -0.838 1.050
H5 -0.951 -0.838 -1.050

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.74432.24431.46311.4631
O21.74431.00322.45502.4550
H32.24431.00323.17233.1723
H41.46312.45503.17232.0997
H51.46312.45503.17232.0997

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 106.399 O2 P1 H4 99.514
O2 P1 H5 99.514 H4 P1 H5 91.705
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at SVWN/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.244      
2 O -0.611      
3 H 0.368      
4 H 0.000      
5 H 0.000      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.648 -0.046 0.000 0.650
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.432 4.407 0.000
y 4.407 -20.773 0.000
z 0.000 0.000 -20.183
Traceless
 xyz
x 1.046 4.407 0.000
y 4.407 -0.965 0.000
z 0.000 0.000 -0.081
Polar
3z2-r2-0.161
x2-y21.341
xy4.407
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.356 0.998 0.000
y 0.998 3.754 0.000
z 0.000 0.000 3.322


<r2> (average value of r2) Å2
<r2> 36.953
(<r2>)1/2 6.079