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

using model chemistry: LSDA/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 LSDA/cc-pVDZ
 hartrees
Energy at 0K-417.057440
Energy at 298.15K-417.061493
HF Energy-417.057440
Nuclear repulsion energy60.787050
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 LSDA/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' 3694 3653 58.63      
2 A' 2211 2186 104.22      
3 A' 1078 1066 3.45      
4 A' 1046 1035 45.44      
5 A' 861 852 12.21      
6 A' 795 787 140.59      
7 A" 2225 2201 138.54      
8 A" 862 852 12.89      
9 A" 401 397 105.93      

Unscaled Zero Point Vibrational Energy (zpe) 6586.5 cm-1
Scaled (by 0.989) Zero Point Vibrational Energy (zpe) 6514.1 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 LSDA/cc-pVDZ
ABC
3.53107 0.47503 0.46882

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.111 -0.572 0.000
O2 -0.111 1.104 0.000
H3 0.794 1.473 0.000
H4 0.877 -0.867 1.033
H5 0.877 -0.867 -1.033

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.67612.23631.46001.4600
O21.67610.97762.43502.4350
H32.23630.97762.55912.5591
H41.46002.43502.55912.0666
H51.46002.43502.55912.0666

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 112.161 O2 P1 H4 101.652
O2 P1 H5 101.652 H4 P1 H5 90.107
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.142      
2 O -0.343      
3 H 0.193      
4 H 0.004      
5 H 0.004      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.097 0.146 0.000 2.102
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.904 1.613 0.000
y 1.613 -19.391 0.000
z 0.000 0.000 -20.069
Traceless
 xyz
x -0.174 1.613 0.000
y 1.613 0.596 0.000
z 0.000 0.000 -0.422
Polar
3z2-r2-0.844
x2-y2-0.513
xy1.613
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.807 -0.388 0.000
y -0.388 3.923 0.000
z 0.000 0.000 3.922


<r2> (average value of r2) Å2
<r2> 35.281
(<r2>)1/2 5.940

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at LSDA/cc-pVDZ
 hartrees
Energy at 0K-417.058431
Energy at 298.15K-417.062304
HF Energy-417.058431
Nuclear repulsion energy60.676238
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 LSDA/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' 3725 3684 107.09      
2 A' 2262 2237 82.50      
3 A' 1104 1092 84.44      
4 A' 1071 1059 14.22      
5 A' 860 850 14.99      
6 A' 797 789 92.74      
7 A" 2270 2245 106.49      
8 A" 889 879 0.34      
9 A" 235 232 76.82      

Unscaled Zero Point Vibrational Energy (zpe) 6605.6 cm-1
Scaled (by 0.989) Zero Point Vibrational Energy (zpe) 6533.0 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 LSDA/cc-pVDZ
ABC
3.54557 0.47245 0.46652

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.041 -0.578 0.000
O2 0.041 1.111 0.000
H3 0.981 1.375 0.000
H4 -0.958 -0.792 1.033
H5 -0.958 -0.792 -1.033

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.68912.16791.45211.4521
O21.68910.97652.38362.3836
H32.16790.97653.08523.0852
H41.45212.38363.08522.0657
H51.45212.38363.08522.0657

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 105.715 O2 P1 H4 98.442
O2 P1 H5 98.442 H4 P1 H5 90.675
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.099      
2 O -0.341      
3 H 0.191      
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
  0.784 -0.076 0.000 0.788
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.974 3.641 0.000
y 3.641 -20.017 0.000
z 0.000 0.000 -19.900
Traceless
 xyz
x 0.984 3.641 0.000
y 3.641 -0.580 0.000
z 0.000 0.000 -0.404
Polar
3z2-r2-0.809
x2-y21.043
xy3.641
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.982 0.745 0.000
y 0.745 3.841 0.000
z 0.000 0.000 3.893


<r2> (average value of r2) Å2
<r2> 35.259
(<r2>)1/2 5.938