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All results from a given calculation for HOONO2 (peroxy nitric acid)

using model chemistry: QCISD(T)/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at QCISD(T)/cc-pVDZ
 hartrees
Energy at 0K-355.198370
Energy at 298.15K-355.202132
HF Energy-354.211617
Nuclear repulsion energy184.158117
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)/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 3726 3551        
2 A 1809 1724        
3 A 1423 1356        
4 A 1350 1286        
5 A 926 883        
6 A 803 765        
7 A 722 688        
8 A 636 606        
9 A 443 423        
10 A 368 350        
11 A 300 286        
12 A 135 129        

Unscaled Zero Point Vibrational Energy (zpe) 6320.5 cm-1
Scaled (by 0.9531) Zero Point Vibrational Energy (zpe) 6024.0 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 QCISD(T)/cc-pVDZ
ABC
0.39196 0.15338 0.11165

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.627 0.082 -0.001
O2 -0.613 -0.803 0.069
O3 -1.750 0.019 -0.147
O4 1.615 -0.602 -0.023
O5 0.438 1.268 0.008
H6 -1.911 0.370 0.749

Atom - Atom Distances (Å)
  N1 O2 O3 O4 O5 H6
N11.52492.38231.20131.20112.6626
O21.52491.41882.23882.32301.8766
O32.38231.41883.42362.52460.9756
O41.20132.23883.42362.20933.7381
O51.20112.32302.52462.20932.6224
H62.66261.87660.97563.73812.6224

picture of peroxy nitric acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 O3 107.997 O2 N1 O4 109.847
O2 N1 O5 116.394 O2 O3 H6 101.602
O4 N1 O5 133.732
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability