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All results from a given calculation for H2NO (nitroxide)

using model chemistry: CID/3-21G

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 CID/3-21G
 hartrees
Energy at 0K-129.869289
Energy at 298.15K 
HF Energy-129.665924
Nuclear repulsion energy33.864566
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 CID/3-21G
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 3531 3289 27.39      
2 A1 1732 1614 39.49      
3 A1 1248 1163 28.76      
4 B1 225i 210i 361.23      
5 B2 3682 3430 6.85      
6 B2 1246 1160 2.98      

Unscaled Zero Point Vibrational Energy (zpe) 5606.5 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 5223.0 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 CID/3-21G
ABC
10.84950 1.03797 0.94734

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -0.573
O2 0.000 0.000 0.769
H3 0.000 0.878 -1.072
H4 0.000 -0.878 -1.072

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.34241.00971.0097
O21.34242.03972.0397
H31.00972.03971.7560
H41.00972.03971.7560

picture of nitroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 119.593 O2 N1 H4 119.593
H3 N1 H4 120.814
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at CID/3-21G
 hartrees
Energy at 0K-129.869364
Energy at 298.15K-129.871590
HF Energy-129.666222
Nuclear repulsion energy33.812890
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 CID/3-21G
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' 3517 3276 22.02      
2 A' 1734 1615 37.56      
3 A' 1233 1149 27.66      
4 A' 282 263 356.77      
5 A" 3665 3414 4.87      
6 A" 1257 1171 2.23      

Unscaled Zero Point Vibrational Energy (zpe) 5843.3 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 5443.6 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 CID/3-21G
ABC
10.67584 1.03460 0.94721

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.018 0.577 0.000
O2 -0.018 -0.769 0.000
H3 0.137 1.060 0.874
H4 0.137 1.060 -0.874

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.34591.01091.0109
O21.34592.03312.0331
H31.01092.03311.7488
H41.01092.03311.7488

picture of nitroxide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 118.537 O2 N1 H4 118.537
H3 N1 H4 119.757
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability