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

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-131.311882
Energy at 298.15K-131.314465
HF Energy-131.012088
Nuclear repulsion energy60.637655
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 MP2/3-21G
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 3241 2.88      
2 A' 3142 3000 44.05      
3 A' 1677 1601 4.63      
4 A' 1385 1322 17.55      
5 A' 1037 990 3.26      
6 A' 777 742 6.62      
7 A' 577 551 94.63      
8 A" 3335 3184 7.33      
9 A" 1120 1069 32.29      
10 A" 1022 975 21.11      
11 A" 721 688 3.90      
12 A" 421 402 1.61      

Unscaled Zero Point Vibrational Energy (zpe) 9304.8 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 8881.5 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 MP2/3-21G
ABC
1.03549 0.69503 0.43618

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

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 -0.968 1.614
H6 -0.133 -0.968 -1.614

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.62851.62851.04672.53122.5312
C21.62851.29652.12891.07132.3093
C31.62851.29652.12892.30931.0713
H41.04672.12892.12892.95282.9528
H52.53121.07132.30932.95283.2281
H62.53122.30931.07132.95283.2281

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 66.542 N1 C2 H5 138.355
N1 C3 C2 66.542 N1 C3 H6 138.355
C2 N1 C3 46.915 C2 N1 H4 103.309
C2 C3 H6 154.363 C3 N1 H4 103.309
C3 C2 H5 154.363
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability