return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: TPSSh/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 TPSSh/cc-pVDZ
 hartrees
Energy at 0K-418.387704
Energy at 298.15K-418.391803
HF Energy-418.387704
Nuclear repulsion energy60.589995
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 TPSSh/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' 3730 3627 42.02      
2 A' 2304 2241 116.23      
3 A' 1143 1111 14.34      
4 A' 1108 1077 42.13      
5 A' 893 869 35.35      
6 A' 783 761 119.86      
7 A" 2307 2243 170.59      
8 A" 890 865 14.54      
9 A" 419 408 99.17      

Unscaled Zero Point Vibrational Energy (zpe) 6788.2 cm-1
Scaled (by 0.9724) Zero Point Vibrational Energy (zpe) 6600.8 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 TPSSh/cc-pVDZ
ABC
3.59149 0.46813 0.46306

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.109 -0.577 0.000
O2 -0.109 1.114 0.000
H3 0.795 1.473 0.000
H4 0.858 -0.862 1.033
H5 0.858 -0.862 -1.033

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.69142.24101.44341.4434
O21.69140.97292.43012.4301
H32.24100.97292.55352.5535
H41.44342.43012.55352.0655
H51.44342.43012.55352.0655

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 111.656 O2 P1 H4 101.351
O2 P1 H5 101.351 H4 P1 H5 91.366
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.250      
2 O -0.382      
3 H 0.178      
4 H -0.023      
5 H -0.023      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.029 -0.100 0.000 2.032
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.648 -0.334 0.000
y -0.334 3.905 0.000
z 0.000 0.000 3.818


<r2> (average value of r2) Å2
<r2> 35.444
(<r2>)1/2 5.954

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at TPSSh/cc-pVDZ
 hartrees
Energy at 0K-418.388525
Energy at 298.15K-418.392416
HF Energy-418.388525
Nuclear repulsion energy60.475542
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 TPSSh/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' 3755 3651 77.70      
2 A' 2359 2294 95.20      
3 A' 1150 1118 73.90      
4 A' 1141 1109 37.91      
5 A' 900 875 13.02      
6 A' 778 757 90.35      
7 A" 2356 2291 134.99      
8 A" 919 893 1.31      
9 A" 229 223 77.44      

Unscaled Zero Point Vibrational Energy (zpe) 6792.9 cm-1
Scaled (by 0.9724) Zero Point Vibrational Energy (zpe) 6605.5 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 TPSSh/cc-pVDZ
ABC
3.61025 0.46531 0.46061

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.039 -0.584 0.000
O2 0.039 1.120 0.000
H3 0.973 1.388 0.000
H4 -0.937 -0.790 1.033
H5 -0.937 -0.790 -1.033

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.70382.18231.43611.4361
O21.70380.97162.38052.3805
H32.18230.97163.07573.0757
H41.43612.38053.07572.0654
H51.43612.38053.07572.0654

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 106.047 O2 P1 H4 98.237
O2 P1 H5 98.237 H4 P1 H5 91.957
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.213      
2 O -0.381      
3 H 0.178      
4 H -0.005      
5 H -0.005      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.861 -0.654 0.000 1.081
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.807 0.707 0.000
y 0.707 3.849 0.000
z 0.000 0.000 3.796


<r2> (average value of r2) Å2
<r2> 35.442
(<r2>)1/2 5.953