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All results from a given calculation for H2NO (nitroxide)

using model chemistry: MP2=FULL/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 MP2=FULL/cc-pVDZ
 hartrees
Energy at 0K-130.741075
Energy at 298.15K 
HF Energy-130.404242
Nuclear repulsion energy35.268804
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=FULL/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 3480 3307 8.30      
2 A1 1682 1599 12.92      
3 A1 1521 1445 19.34      
4 B1 224i 213i 167.95      
5 B2 3631 3451 6.67      
6 B2 1275 1211 0.60      

Unscaled Zero Point Vibrational Energy (zpe) 5682.0 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 5400.2 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=FULL/cc-pVDZ
ABC
10.85111 1.15332 1.04251

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -0.533
O2 0.000 0.000 0.730
H3 0.000 0.878 -1.054
H4 0.000 -0.878 -1.054

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.26361.02071.0207
O21.26361.98861.9886
H31.02071.98861.7558
H41.02071.98861.7558

picture of nitroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 120.673 O2 N1 H4 120.673
H3 N1 H4 118.654
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at MP2=FULL/cc-pVDZ
 hartrees
Energy at 0K-130.741117
Energy at 298.15K-130.743398
HF Energy-130.404614
Nuclear repulsion energy35.265036
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=FULL/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' 3466 3294 7.20      
2 A' 1680 1597 14.66      
3 A' 1518 1443 15.56      
4 A' 313 298 170.30      
5 A" 3617 3437 5.04      
6 A" 1283 1220 0.49      

Unscaled Zero Point Vibrational Energy (zpe) 5938.5 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 5643.9 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 MP2=FULL/cc-pVDZ
ABC
10.74863 1.15333 1.04478

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.015 0.535 0.000
O2 -0.015 -0.729 0.000
H3 0.112 1.046 0.875
H4 0.112 1.046 -0.875

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.26411.02171.0217
O21.26411.98391.9839
H31.02171.98391.7501
H41.02171.98391.7501

picture of nitroxide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 120.065 O2 N1 H4 120.065
H3 N1 H4 117.849
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability