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

using model chemistry: PBEPBEultrafine/cc-pV(T+d)Z

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 PBEPBEultrafine/cc-pV(T+d)Z
 hartrees
Energy at 0K-418.181484
Energy at 298.15K-418.185547
HF Energy-418.181484
Nuclear repulsion energy61.217227
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 PBEPBEultrafine/cc-pV(T+d)Z
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' 3708 3708 45.52      
2 A' 2233 2233 103.44      
3 A' 1102 1102 6.89      
4 A' 1075 1075 40.09      
5 A' 876 876 18.49      
6 A' 770 770 141.34      
7 A" 2240 2240 131.78      
8 A" 877 877 14.10      
9 A" 401 401 90.32      

Unscaled Zero Point Vibrational Energy (zpe) 6640.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6640.9 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 PBEPBEultrafine/cc-pV(T+d)Z
ABC
3.61397 0.48052 0.47485

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/cc-pV(T+d)Z

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.109 -0.569 0.000
O2 -0.109 1.097 0.000
H3 0.783 1.480 0.000
H4 0.864 -0.858 1.026
H5 0.864 -0.858 -1.026

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.66572.23511.44311.4431
O21.66570.97092.41212.4121
H32.23510.97092.55442.5544
H41.44312.41212.55442.0525
H51.44312.41212.55442.0525

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 113.279 O2 P1 H4 101.528
O2 P1 H5 101.528 H4 P1 H5 90.651
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.185      
2 O -0.357      
3 H 0.207      
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
  1.899 0.227 0.000 1.912
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.238 1.626 0.000
y 1.626 -19.549 0.000
z 0.000 0.000 -20.273
Traceless
 xyz
x -0.326 1.626 0.000
y 1.626 0.706 0.000
z 0.000 0.000 -0.379
Polar
3z2-r2-0.759
x2-y2-0.688
xy1.626
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.402 -0.238 0.000
y -0.238 4.534 0.000
z 0.000 0.000 4.373


<r2> (average value of r2) Å2
<r2> 35.130
(<r2>)1/2 5.927

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at PBEPBEultrafine/cc-pV(T+d)Z
 hartrees
Energy at 0K-418.181681
Energy at 298.15K-418.185589
HF Energy-418.181681
Nuclear repulsion energy61.092093
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 PBEPBEultrafine/cc-pV(T+d)Z
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' 3742 3742 92.28      
2 A' 2275 2275 83.69      
3 A' 1121 1121 86.05      
4 A' 1102 1102 18.78      
5 A' 877 877 16.01      
6 A' 769 769 104.82      
7 A" 2278 2278 105.70      
8 A" 898 898 1.09      
9 A" 256 256 73.87      

Unscaled Zero Point Vibrational Energy (zpe) 6657.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6657.6 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 PBEPBEultrafine/cc-pV(T+d)Z
ABC
3.63041 0.47763 0.47239

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/cc-pV(T+d)Z

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.040 -0.576 0.000
O2 0.040 1.102 0.000
H3 0.965 1.394 0.000
H4 -0.942 -0.787 1.027
H5 -0.942 -0.787 -1.027

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.67792.17571.43681.4368
O21.67790.96972.36422.3642
H32.17570.96973.07373.0737
H41.43682.36423.07372.0541
H51.43682.36423.07372.0541

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 107.493 O2 P1 H4 98.466
O2 P1 H5 98.466 H4 P1 H5 91.259
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 P 0.156      
2 O -0.356      
3 H 0.210      
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
  0.771 0.069 0.000 0.774
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.373 3.555 0.000
y 3.555 -20.139 0.000
z 0.000 0.000 -20.136
Traceless
 xyz
x 0.764 3.555 0.000
y 3.555 -0.384 0.000
z 0.000 0.000 -0.380
Polar
3z2-r2-0.760
x2-y20.766
xy3.555
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.513 0.532 0.000
y 0.532 4.477 0.000
z 0.000 0.000 4.359


<r2> (average value of r2) Å2
<r2> 35.143
(<r2>)1/2 5.928