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

using model chemistry: CID/6-31G*

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 CID/6-31G*
 hartrees
Energy at 0K-417.594088
Energy at 298.15K-417.598251
HF Energy-417.313288
Nuclear repulsion energy61.448441
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 CID/6-31G*
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' 3877 3581 52.19      
2 A' 2454 2267 137.16      
3 A' 1206 1114 5.58      
4 A' 1183 1093 86.81      
5 A' 958 885 73.95      
6 A' 842 778 146.03      
7 A" 2454 2267 199.53      
8 A" 936 865 27.21      
9 A" 439 405 130.88      

Unscaled Zero Point Vibrational Energy (zpe) 7174.6 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 6627.1 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 CID/6-31G*
ABC
3.70533 0.48087 0.47734

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 -0.106 -0.570 0.000
O2 -0.106 1.095 0.000
H3 0.776 1.487 0.000
H4 0.833 -0.849 1.032
H5 0.833 -0.849 -1.032

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.66472.23771.42271.4227
O21.66470.96492.39242.3924
H32.23770.96492.55382.5538
H41.42272.39242.55382.0632
H51.42272.39242.55382.0632

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 113.965 O2 P1 H4 101.300
O2 P1 H5 101.300 H4 P1 H5 92.955
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS cis)

Jump to S1C1
Energy calculated at CID/6-31G*
 hartrees
Energy at 0K-417.594808
Energy at 298.15K-417.598804
HF Energy-417.313425
Nuclear repulsion energy61.378954
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 CID/6-31G*
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' 3906 3608 93.62      
2 A' 2503 2312 111.83      
3 A' 1220 1126 165.12      
4 A' 1203 1111 34.58      
5 A' 957 884 23.47      
6 A' 833 770 113.57      
7 A" 2501 2310 152.09      
8 A" 955 882 3.64      
9 A" 278 256 113.55      

Unscaled Zero Point Vibrational Energy (zpe) 7177.6 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 6629.9 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 CID/6-31G*
ABC
3.74424 0.47849 0.47565

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
P1 0.038 -0.575 0.000
O2 0.038 1.099 0.000
H3 0.949 1.413 0.000
H4 -0.906 -0.794 1.032
H5 -0.906 -0.794 -1.032

Atom - Atom Distances (Å)
  P1 O2 H3 H4 H5
P11.67372.18631.41561.4156
O21.67370.96352.35352.3535
H32.18630.96353.06183.0618
H41.41562.35353.06182.0636
H51.41562.35353.06182.0636

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 108.999 O2 P1 H4 98.906
O2 P1 H5 98.906 H4 P1 H5 93.586
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability