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

using model chemistry: PBEPBE/cc-pVDZ

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 PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-418.123678
Energy at 298.15K-418.127721
HF Energy-418.123678
Nuclear repulsion energy60.136310
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 PBEPBE/cc-pVDZ
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' 3654 3633 38.30      
2 A' 2202 2189 115.13      
3 A' 1092 1085 2.53      
4 A' 1069 1063 45.67      
5 A' 862 857 32.43      
6 A' 758 753 110.67      
7 A" 2213 2200 154.31      
8 A" 855 850 11.64      
9 A" 402 399 97.01      

Unscaled Zero Point Vibrational Energy (zpe) 6553.1 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 6515.1 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 PBEPBE/cc-pVDZ
ABC
3.51162 0.46234 0.45648

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.111 -0.580 0.000
O2 -0.111 1.122 0.000
H3 0.803 1.471 0.000
H4 0.876 -0.873 1.037
H5 0.876 -0.873 -1.037

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.70252.24611.46151.4615
O21.70250.97862.45622.4562
H32.24610.97862.56482.5648
H41.46152.45622.56482.0735
H51.46152.45622.56482.0735

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 110.901 O2 P1 H4 101.573
O2 P1 H5 101.573 H4 P1 H5 90.369
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.205      
2 O -0.342      
3 H 0.169      
4 H -0.016      
5 H -0.016      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.985 0.043 0.000 1.986
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.899 1.577 0.000
y 1.577 -19.516 0.000
z 0.000 0.000 -20.055
Traceless
 xyz
x -0.113 1.577 0.000
y 1.577 0.461 0.000
z 0.000 0.000 -0.347
Polar
3z2-r2-0.694
x2-y2-0.383
xy1.577
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.792 -0.364 0.000
y -0.364 4.023 0.000
z 0.000 0.000 3.897


<r2> (average value of r2) Å2
<r2> 35.813
(<r2>)1/2 5.984

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-418.124603
Energy at 298.15K-418.128440
HF Energy-418.124603
Nuclear repulsion energy60.017175
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 PBEPBE/cc-pVDZ
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' 3684 3662 74.63      
2 A' 2254 2241 94.10      
3 A' 1119 1112 83.10      
4 A' 1085 1078 16.99      
5 A' 866 861 10.37      
6 A' 754 749 83.74      
7 A" 2259 2246 122.35      
8 A" 884 879 0.39      
9 A" 217 216 69.67      

Unscaled Zero Point Vibrational Energy (zpe) 6560.2 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 6522.2 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 PBEPBE/cc-pVDZ
ABC
3.52649 0.45950 0.45394

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.040 -0.588 0.000
O2 0.040 1.129 0.000
H3 0.985 1.379 0.000
H4 -0.957 -0.797 1.036
H5 -0.957 -0.797 -1.036

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.71602.18141.45351.4535
O21.71600.97742.40342.4034
H32.18140.97743.09513.0951
H41.45352.40343.09512.0729
H51.45352.40343.09512.0729

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 104.832 O2 P1 H4 98.286
O2 P1 H5 98.286 H4 P1 H5 90.969
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.167      
2 O -0.340      
3 H 0.167      
4 H 0.003      
5 H 0.003      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.781 -0.160 0.000 0.798
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.022 3.480 0.000
y 3.480 -20.090 0.000
z 0.000 0.000 -19.893
Traceless
 xyz
x 0.970 3.480 0.000
y 3.480 -0.633 0.000
z 0.000 0.000 -0.337
Polar
3z2-r2-0.674
x2-y21.069
xy3.480
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.963 0.733 0.000
y 0.733 3.954 0.000
z 0.000 0.000 3.871


<r2> (average value of r2) Å2
<r2> 35.809
(<r2>)1/2 5.984