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All results from a given calculation for H2NO (nitroxide)

using model chemistry: CCSD(T)/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 CCSD(T)/cc-pVDZ
 hartrees
Energy at 0K-130.765498
Energy at 298.15K 
HF Energy-130.403545
Nuclear repulsion energy34.948437
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)/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3450 3377        
2 A1 1654 1619        
3 A1 1397 1368        
4 B1 430i 420i        
5 B2 3588 3512        
6 B2 1255 1229        

Unscaled Zero Point Vibrational Energy (zpe) 5457.8 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 5342.1 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)/cc-pVDZ
ABC
10.76534 1.12910 1.02192

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -0.541
O2 0.000 0.000 0.738
H3 0.000 0.881 -1.059
H4 0.000 -0.881 -1.059

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.27871.02261.0226
O21.27872.00172.0017
H31.02262.00171.7628
H41.02262.00171.7628

picture of nitroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 120.468 O2 N1 H4 120.468
H3 N1 H4 119.065
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at CCSD(T)/cc-pVDZ
 hartrees
Energy at 0K-130.766115
Energy at 298.15K-130.768614
HF Energy-130.404669
Nuclear repulsion energy34.872068
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)/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3401 3329        
2 A' 1654 1619        
3 A' 1369 1340        
4 A' 563 551        
5 A" 3532 3458        
6 A" 1286 1259        

Unscaled Zero Point Vibrational Energy (zpe) 5902.4 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 5777.3 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)/cc-pVDZ
ABC
10.35848 1.12410 1.02678

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.030 0.548 0.000
O2 -0.030 -0.736 0.000
H3 0.227 1.028 0.870
H4 0.227 1.028 -0.870

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.28391.02631.0263
O21.28391.98391.9839
H31.02631.98391.7393
H41.02631.98391.7393

picture of nitroxide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 117.923 O2 N1 H4 117.923
H3 N1 H4 115.856
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability