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All results from a given calculation for CHNHCH (1H-Azirine)

using model chemistry: MP2=FULL/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/3-21G*
 hartrees
Energy at 0K-131.316894
Energy at 298.15K-131.319472
HF Energy-131.012146
Nuclear repulsion energy60.649062
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 MP2=FULL/3-21G*
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' 3396 3219 2.90      
2 A' 3143 2980 43.92      
3 A' 1678 1590 4.61      
4 A' 1385 1313 17.57      
5 A' 1038 984 3.27      
6 A' 777 737 6.65      
7 A' 578 548 94.56      
8 A" 3336 3162 7.37      
9 A" 1120 1062 32.29      
10 A" 1023 969 21.09      
11 A" 722 684 3.91      
12 A" 421 399 1.62      

Unscaled Zero Point Vibrational Energy (zpe) 9307.4 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 8823.4 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 MP2=FULL/3-21G*
ABC
1.03581 0.69536 0.43636

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.037 0.980 0.000
C2 -0.037 -0.514 0.648
C3 -0.037 -0.514 -0.648
H4 0.976 1.243 0.000
H5 -0.133 -0.967 1.614
H6 -0.133 -0.967 -1.614

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.62811.62811.04652.53082.5308
C21.62811.29632.12861.07122.3090
C31.62811.29632.12862.30901.0712
H41.04652.12862.12862.95252.9525
H52.53081.07122.30902.95253.2276
H62.53082.30901.07122.95253.2276

picture of 1H-Azirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 66.540 N1 C2 H5 138.364
N1 C3 C2 66.540 N1 C3 H6 138.364
C2 N1 C3 46.920 C2 N1 H4 103.321
C2 C3 H6 154.357 C3 N1 H4 103.321
C3 C2 H5 154.357
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability