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

using model chemistry: B1B95/TZVP

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 B1B95/TZVP
 hartrees
Energy at 0K-418.411597
Energy at 298.15K-418.415702
HF Energy-418.411597
Nuclear repulsion energy61.339898
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 B1B95/TZVP
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' 3881 3714 57.33      
2 A' 2334 2233 114.16      
3 A' 1143 1094 16.88      
4 A' 1082 1036 43.52      
5 A' 906 867 28.24      
6 A' 805 771 167.45      
7 A" 2340 2239 152.11      
8 A" 920 881 18.37      
9 A" 410 392 119.18      

Unscaled Zero Point Vibrational Energy (zpe) 6910.2 cm-1
Scaled (by 0.9569) Zero Point Vibrational Energy (zpe) 6612.4 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 B1B95/TZVP
ABC
3.67054 0.47993 0.47534

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.107 -0.572 0.000
O2 -0.107 1.096 0.000
H3 0.766 1.492 0.000
H4 0.853 -0.838 1.027
H5 0.853 -0.838 -1.027

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.66782.24121.43101.4310
O21.66780.95882.39062.3906
H32.24120.95882.54752.5475
H41.43102.39062.54752.0543
H51.43102.39062.54752.0543

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 114.414 O2 P1 H4 100.690
O2 P1 H5 100.690 H4 P1 H5 91.743
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.247      
2 O -0.510      
3 H 0.299      
4 H -0.018      
5 H -0.018      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.264 -0.149 0.000 2.269
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.238 1.782 0.000
y 1.782 -19.820 0.000
z 0.000 0.000 -20.074
Traceless
 xyz
x -0.292 1.782 0.000
y 1.782 0.336 0.000
z 0.000 0.000 -0.045
Polar
3z2-r2-0.090
x2-y2-0.419
xy1.782
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.826 -0.300 0.000
y -0.300 3.958 0.000
z 0.000 0.000 3.975


<r2> (average value of r2) Å2
<r2> 35.079
(<r2>)1/2 5.923

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at B1B95/TZVP
 hartrees
Energy at 0K-418.412060
Energy at 298.15K-418.416004
HF Energy-418.412060
Nuclear repulsion energy61.258373
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 B1B95/TZVP
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' 3902 3734 101.05      
2 A' 2391 2288 88.25      
3 A' 1146 1097 27.59      
4 A' 1125 1076 89.38      
5 A' 905 866 30.93      
6 A' 802 768 117.10      
7 A" 2392 2289 114.30      
8 A" 938 898 2.26      
9 A" 259 248 110.69      

Unscaled Zero Point Vibrational Energy (zpe) 6930.0 cm-1
Scaled (by 0.9569) Zero Point Vibrational Energy (zpe) 6631.3 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 B1B95/TZVP
ABC
3.69713 0.47765 0.47357

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.039 -0.578 0.000
O2 0.039 1.100 0.000
H3 0.945 1.413 0.000
H4 -0.927 -0.774 1.028
H5 -0.927 -0.774 -1.028

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.67782.18661.42411.4241
O21.67780.95802.34592.3459
H32.18660.95803.05653.0565
H41.42412.34593.05652.0550
H51.42412.34593.05652.0550

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 109.034 O2 P1 H4 97.942
O2 P1 H5 97.942 H4 P1 H5 92.364
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.197      
2 O -0.503      
3 H 0.295      
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
  0.811 -0.323 0.000 0.872
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.292 4.075 0.000
y 4.075 -20.411 0.000
z 0.000 0.000 -19.943
Traceless
 xyz
x 0.884 4.075 0.000
y 4.075 -0.793 0.000
z 0.000 0.000 -0.091
Polar
3z2-r2-0.183
x2-y21.118
xy4.075
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.930 0.561 0.000
y 0.561 3.979 0.000
z 0.000 0.000 3.972


<r2> (average value of r2) Å2
<r2> 35.058
(<r2>)1/2 5.921