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All results from a given calculation for H2NO (nitroxide)

using model chemistry: CCSD/cc-pVTZ

19 10 17 12 22

States and conformations

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

Conformer 1 (C2V)

Jump to S1C2
Energy calculated at CCSD/cc-pVTZ
 hartrees
Energy at 0K-130.888004
Energy at 298.15K 
HF Energy-130.447698
Nuclear repulsion energy35.244809
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 CCSD/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 A1 3524 3317 3.45      
2 A1 1687 1588 18.09      
3 A1 1417 1334 2.19      
4 B1 320i 301i 187.18      
5 B2 3667 3452 12.69      
6 B2 1281 1205 0.80      

Unscaled Zero Point Vibrational Energy (zpe) 5628.1 cm-1
Scaled (by 0.9412) Zero Point Vibrational Energy (zpe) 5297.1 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 CCSD/cc-pVTZ
ABC
10.95052 1.14693 1.03819

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -0.539
O2 0.000 0.000 0.732
H3 0.000 0.874 -1.041
H4 0.000 -0.874 -1.041

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.27141.00781.0078
O21.27141.97701.9770
H31.00781.97701.7478
H41.00781.97701.7478

picture of nitroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 119.874 O2 N1 H4 119.874
H3 N1 H4 120.252
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at CCSD/cc-pVTZ
 hartrees
Energy at 0K-130.888194
Energy at 298.15K-130.890598
HF Energy-130.448220
Nuclear repulsion energy35.196300
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 CCSD/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' 3499 3293 1.66      
2 A' 1686 1587 18.06      
3 A' 1400 1318 1.91      
4 A' 434 408 185.74      
5 A" 3637 3424 8.44      
6 A" 1297 1221 0.50      

Unscaled Zero Point Vibrational Energy (zpe) 5976.4 cm-1
Scaled (by 0.9412) Zero Point Vibrational Energy (zpe) 5624.9 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 CCSD/cc-pVTZ
ABC
10.72524 1.14351 1.04046

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.022 0.543 0.000
O2 -0.022 -0.731 0.000
H3 0.167 1.024 0.867
H4 0.167 1.024 -0.867

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.27451.00971.0097
O21.27451.96751.9675
H31.00971.96751.7344
H41.00971.96751.7344

picture of nitroxide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 118.468 O2 N1 H4 118.468
H3 N1 H4 118.380
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability