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

using model chemistry: B3LYP/cc-pVTZ

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 B3LYP/cc-pVTZ
 hartrees
Energy at 0K-418.444827
Energy at 298.15K-418.448934
HF Energy-418.444827
Nuclear repulsion energy61.433327
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 B3LYP/cc-pVTZ
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' 3820 3692 54.93      
2 A' 2301 2224 109.84      
3 A' 1143 1105 12.55      
4 A' 1107 1070 41.96      
5 A' 909 878 28.40      
6 A' 794 768 147.81      
7 A" 2304 2227 148.02      
8 A" 909 879 16.36      
9 A" 412 398 96.26      

Unscaled Zero Point Vibrational Energy (zpe) 6849.2 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 6620.5 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 B3LYP/cc-pVTZ
ABC
3.67725 0.48195 0.47734

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.107 -0.569 0.000
O2 -0.107 1.093 0.000
H3 0.769 1.491 0.000
H4 0.850 -0.849 1.026
H5 0.850 -0.849 -1.026

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.66272.23871.43151.4315
O21.66270.96192.39692.3969
H32.23870.96192.55682.5568
H41.43152.39692.55682.0526
H51.43152.39692.55682.0526

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 114.410 O2 P1 H4 101.284
O2 P1 H5 101.284 H4 P1 H5 91.604
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.214      
2 O -0.399      
3 H 0.209      
4 H -0.012      
5 H -0.012      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.935 0.089 0.000 1.937
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.312 1.644 0.000
y 1.644 -19.632 0.000
z 0.000 0.000 -20.210
Traceless
 xyz
x -0.391 1.644 0.000
y 1.644 0.630 0.000
z 0.000 0.000 -0.238
Polar
3z2-r2-0.477
x2-y2-0.681
xy1.644
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.254 -0.225 0.000
y -0.225 4.368 0.000
z 0.000 0.000 4.277


<r2> (average value of r2) Å2
<r2> 35.024
(<r2>)1/2 5.918

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at B3LYP/cc-pVTZ
 hartrees
Energy at 0K-418.444888
Energy at 298.15K-418.448838
HF Energy-418.444888
Nuclear repulsion energy61.332795
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 B3LYP/cc-pVTZ
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' 3850 3722 101.60      
2 A' 2347 2268 89.33      
3 A' 1149 1111 45.26      
4 A' 1143 1105 73.35      
5 A' 911 881 18.40      
6 A' 789 763 112.84      
7 A" 2346 2268 118.62      
8 A" 928 897 2.14      
9 A" 264 256 82.88      

Unscaled Zero Point Vibrational Energy (zpe) 6863.5 cm-1
Scaled (by 0.9666) Zero Point Vibrational Energy (zpe) 6634.2 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 B3LYP/cc-pVTZ
ABC
3.70249 0.47934 0.47526

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.039 -0.575 0.000
O2 0.039 1.098 0.000
H3 0.947 1.413 0.000
H4 -0.926 -0.786 1.027
H5 -0.926 -0.786 -1.027

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.67312.18571.42531.4253
O21.67310.96062.35272.3527
H32.18570.96063.06573.0657
H41.42532.35273.06572.0538
H51.42532.35273.06572.0538

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 109.161 O2 P1 H4 98.496
O2 P1 H5 98.496 H4 P1 H5 92.192
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.182      
2 O -0.399      
3 H 0.211      
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
  0.780 -0.057 0.000 0.782
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.466 3.651 0.000
y 3.651 -20.176 0.000
z 0.000 0.000 -20.074
Traceless
 xyz
x 0.658 3.651 0.000
y 3.651 -0.406 0.000
z 0.000 0.000 -0.253
Polar
3z2-r2-0.506
x2-y20.709
xy3.651
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.355 0.524 0.000
y 0.524 4.327 0.000
z 0.000 0.000 4.263


<r2> (average value of r2) Å2
<r2> 35.028
(<r2>)1/2 5.918