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All results from a given calculation for H2NO (nitroxide)

using model chemistry: CCSD(T)/6-311G*

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(T)/6-311G*
 hartrees
Energy at 0K-130.798127
Energy at 298.15K 
HF Energy-130.424211
Nuclear repulsion energy35.061458
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(T)/6-311G*
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 3490 3359        
2 A1 1736 1671        
3 A1 1400 1348        
4 B1 377i 363i        
5 B2 3624 3488        
6 B2 1297 1248        

Unscaled Zero Point Vibrational Energy (zpe) 5584.5 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 5375.7 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(T)/6-311G*
ABC
10.87225 1.13437 1.02719

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -0.542
O2 0.000 0.000 0.736
H3 0.000 0.877 -1.049
H4 0.000 -0.877 -1.049

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.27791.01311.0131
O21.27791.98881.9888
H31.01311.98881.7541
H41.01311.98881.7541

picture of nitroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 120.036 O2 N1 H4 120.036
H3 N1 H4 119.929
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at CCSD(T)/6-311G*
 hartrees
Energy at 0K-130.798468
Energy at 298.15K-130.800928
HF Energy-130.425172
Nuclear repulsion energy35.008663
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(T)/6-311G*
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' 3454 3325        
2 A' 1734 1669        
3 A' 1380 1329        
4 A' 506 487        
5 A" 3582 3448        
6 A" 1319 1269        

Unscaled Zero Point Vibrational Energy (zpe) 5987.2 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 5763.2 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 CCSD(T)/6-311G*
ABC
10.57841 1.13099 1.03082

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.025 0.547 0.000
O2 -0.025 -0.735 0.000
H3 0.190 1.027 0.869
H4 0.190 1.027 -0.869

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.28141.01571.0157
O21.28141.97601.9760
H31.01571.97601.7374
H41.01571.97601.7374

picture of nitroxide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 118.214 O2 N1 H4 118.214
H3 N1 H4 117.573
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability