return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for N2O (Nitrous oxide)

using model chemistry: AM1

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
Energy calculated at AM1
 hartrees
Energy at 0K 
Energy at 298.15K0.045272
Nuclear repulsion energy32.134578
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 AM1
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 2684 2559 568.76      
2 Σ 1602 1527 129.42      
3 Π 500 477 15.11      
3 Π 500 477 15.11      

Unscaled Zero Point Vibrational Energy (zpe) 2642.8 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 2520.0 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 AM1
B
0.42473

See section I.F.4 to change rotational constant units
Geometric Data calculated at AM1

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -1.216
N2 0.000 0.000 -0.088
O3 0.000 0.000 1.087

Atom - Atom Distances (Å)
  N1 N2 O3
N11.12772.3028
N21.12771.1751
O32.30281.1751

picture of Nitrous oxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 N2 O3 180.000
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability