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All results from a given calculation for H2NO (nitroxide)

using model chemistry: MP2/aug-cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2B1
1 2 no CS 2A'

Conformer 1 (C2V)

Jump to S1C2
Energy calculated at MP2/aug-cc-pVQZ
 hartrees
Energy at 0K-130.921882
Energy at 298.15K-130.924128
HF Energy-130.459864
Nuclear repulsion energy35.508711
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 MP2/aug-cc-pVQZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3486 3311 5.94      
2 A1 1689 1604 9.65      
3 A1 1521 1445 41.77      
4 B1 284 270 157.72      
5 B2 3637 3454 21.82      
6 B2 1280 1216 1.01      

Unscaled Zero Point Vibrational Energy (zpe) 5949.3 cm-1
Scaled (by 0.9497) Zero Point Vibrational Energy (zpe) 5650.0 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 MP2/aug-cc-pVQZ
ABC
10.93112 1.16969 1.05663

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVQZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -0.532
O2 0.000 0.000 0.725
H3 0.000 0.875 -1.039
H4 0.000 -0.875 -1.039

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.25691.01091.0109
O21.25691.96871.9687
H31.01091.96871.7494
H41.01091.96871.7494

picture of nitroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 120.085 O2 N1 H4 120.085
H3 N1 H4 119.830
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP2/aug-cc-pVQZ
 hartrees
Energy at 0K-130.921069
Energy at 298.15K 
HF Energy-130.460734
Nuclear repulsion energy35.666433
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 MP2/aug-cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at MP2/aug-cc-pVQZ
ABC
10.93112 1.16969 1.05663

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVQZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.023 0.534 0.000
O2 -0.023 -0.722 0.000
H3 0.169 1.017 0.855
H4 0.169 1.017 -0.855

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.25551.00041.0004
O21.25551.94701.9470
H31.00041.94701.7094
H41.00041.94701.7094

picture of nitroxide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 118.891 O2 N1 H4 118.891
H3 N1 H4 117.381
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability