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All results from a given calculation for HN3 (hydrogen azide)

using model chemistry: QCISD/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-164.518568
Energy at 298.15K 
HF Energy-163.906218
Nuclear repulsion energy61.737725
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/aug-cc-pVTZ
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' 3534 3402 41.81      
2 A' 2242 2158 423.34      
3 A' 1317 1267 38.05      
4 A' 1188 1144 195.63      
5 A' 533 513 14.76      
6 A" 613 590 0.29      

Unscaled Zero Point Vibrational Energy (zpe) 4713.9 cm-1
Scaled (by 0.9624) Zero Point Vibrational Energy (zpe) 4536.6 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 QCISD/aug-cc-pVTZ
ABC
20.11058 0.40377 0.39583

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.065 -1.131 0.000
N2 0.000 0.113 0.000
N3 -0.214 1.218 0.000
H4 1.044 -1.401 0.000

Atom - Atom Distances (Å)
  N1 N2 N3 H4
N11.24592.36601.0162
N21.24591.12581.8393
N32.36601.12582.9059
H41.01621.83932.9059

picture of hydrogen azide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 N2 N3 172.026 N2 N1 H4 108.373
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability