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All results from a given calculation for NH2OH (hydroxylamine)

using model chemistry: QCISD(T)/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD(T)/6-31G*
 hartrees
Energy at 0K-131.350523
Energy at 298.15K-131.354410
HF Energy-130.975183
Nuclear repulsion energy38.859639
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 QCISD(T)/6-31G*
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' 3738 3586        
2 A' 3402 3263        
3 A' 1713 1643        
4 A' 1450 1391        
5 A' 1207 1158        
6 A' 922 885        
7 A" 3499 3357        
8 A" 1340 1285        
9 A" 402 385        

Unscaled Zero Point Vibrational Energy (zpe) 8836.0 cm-1
Scaled (by 0.9593) Zero Point Vibrational Energy (zpe) 8476.3 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 QCISD(T)/6-31G*
ABC
6.23971 0.83217 0.83064

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.012 0.716 0.000
O2 -0.012 -0.745 0.000
H3 -0.966 -0.937 0.000
H4 0.572 0.940 0.813
H5 0.572 0.940 -0.813

Atom - Atom Distances (Å)
  N1 O2 H3 H4 H5
N11.46091.90841.02571.0257
O21.46090.97301.95931.9593
H31.90840.97302.55862.5586
H41.02571.95932.55861.6259
H51.02571.95932.55861.6259

picture of hydroxylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 H3 101.377 O2 N1 H4 102.575
O2 N1 H5 102.575 H4 N1 H5 104.864
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability