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All results from a given calculation for H2NO (nitroxide)

using model chemistry: QCISD(T)/aug-cc-pVDZ

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 QCISD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-130.807109
Energy at 298.15K 
HF Energy-130.418614
Nuclear repulsion energy34.816419
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 QCISD(T)/aug-cc-pVDZ
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 3446 3370        
2 A1 1659 1622        
3 A1 1368 1338        
4 B1 318i 311i        
5 B2 3598 3518        
6 B2 1249 1221        

Unscaled Zero Point Vibrational Energy (zpe) 5501.0 cm-1
Scaled (by 0.9778) Zero Point Vibrational Energy (zpe) 5378.9 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 QCISD(T)/aug-cc-pVDZ
ABC
10.65599 1.11976 1.01328

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -0.546
O2 0.000 0.000 0.741
H3 0.000 0.886 -1.052
H4 0.000 -0.886 -1.052

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.28721.02021.0202
O21.28721.99991.9999
H31.02021.99991.7718
H41.02021.99991.7718

picture of nitroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 119.725 O2 N1 H4 119.725
H3 N1 H4 120.550
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at QCISD(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-130.807316
Energy at 298.15K-130.809713
HF Energy-130.419189
Nuclear repulsion energy34.766259
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 QCISD(T)/aug-cc-pVDZ
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' 3417 3341        
2 A' 1650 1613        
3 A' 1351 1321        
4 A' 432 423        
5 A" 3564 3485        
6 A" 1265 1237        

Unscaled Zero Point Vibrational Energy (zpe) 5839.5 cm-1
Scaled (by 0.9778) Zero Point Vibrational Energy (zpe) 5709.9 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 QCISD(T)/aug-cc-pVDZ
ABC
10.41919 1.11634 1.01571

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.023 0.550 0.000
O2 -0.023 -0.740 0.000
H3 0.174 1.034 0.879
H4 0.174 1.034 -0.879

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.29051.02231.0223
O21.29051.98951.9895
H31.02231.98951.7578
H41.02231.98951.7578

picture of nitroxide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 118.215 O2 N1 H4 118.215
H3 N1 H4 118.575
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability