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All results from a given calculation for H2NO (nitroxide)

using model chemistry: MP4/cc-pVTZ

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 MP4/cc-pVTZ
 hartrees
Energy at 0K-130.903606
Energy at 298.15K 
HF Energy-130.447463
Nuclear repulsion energy35.219863
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 MP4/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 3475 3368        
2 A1 1670 1619        
3 A1 1450 1405        
4 B1 206i 200i        
5 B2 3624 3512        
6 B2 1262 1223        

Unscaled Zero Point Vibrational Energy (zpe) 5637.2 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 5463.6 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 MP4/cc-pVTZ
ABC
10.92051 1.14623 1.03735

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -0.538
O2 0.000 0.000 0.732
H3 0.000 0.875 -1.045
H4 0.000 -0.875 -1.045

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.27071.01141.0114
O21.27071.98151.9815
H31.01141.98151.7502
H41.01141.98151.7502

picture of nitroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 120.090 O2 N1 H4 120.090
H3 N1 H4 119.821
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP4/cc-pVTZ
 hartrees
Energy at 0K-130.903356
Energy at 298.15K 
HF Energy-130.447109
Nuclear repulsion energy35.315867
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 MP4/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at MP4/cc-pVTZ
ABC
10.92051 1.14623 1.03735

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/cc-pVTZ

Point Group is Cs

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability