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All results from a given calculation for H2NO (nitroxide)

using model chemistry: ROMP2/TZVP

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 ROMP2/TZVP
 hartrees
Energy at 0K-130.804466
Energy at 298.15K-130.806728
HF Energy-130.437481
Nuclear repulsion energy35.463518
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 ROMP2/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 A1 3485 3485        
2 A1 1723 1723        
3 A1 1559 1559        
4 B1 295 295        
5 B2 3637 3637        
6 B2 1304 1304        

Unscaled Zero Point Vibrational Energy (zpe) 6000.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6000.8 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 ROMP2/TZVP
ABC
10.92595 1.16657 1.05403

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/TZVP

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 0.726
H3 0.000 0.875 -1.044
H4 0.000 -0.875 -1.044

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.25761.01371.0137
O21.25761.97411.9741
H31.01371.97411.7498
H41.01371.97411.7498

picture of nitroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 120.334 O2 N1 H4 120.334
H3 N1 H4 119.333
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROMP2/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.279      
2 O -0.173      
3 H 0.226      
4 H 0.226      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 16.849
(<r2>)1/2 4.105

Conformer 2 (CS)

Jump to S1C1
Energy calculated at ROMP2/TZVP
 hartrees
Energy at 0K-130.804466
Energy at 298.15K-130.806727
HF Energy-130.437480
Nuclear repulsion energy35.463711
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 ROMP2/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' 3486 3486        
2 A' 1722 1722        
3 A' 1559 1559        
4 A' 294 294        
5 A" 3638 3638        
6 A" 1303 1303        

Unscaled Zero Point Vibrational Energy (zpe) 6000.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 6000.7 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 ROMP2/TZVP
ABC
10.92657 1.16660 1.05406

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/TZVP

Point Group is Cs

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROMP2/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.279      
2 O -0.173      
3 H 0.226      
4 H 0.226      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 16.850
(<r2>)1/2 4.105