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All results from a given calculation for CH2N2 (diazirine)

using model chemistry: QCISD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/6-31G*
 hartrees
Energy at 0K-148.304106
Energy at 298.15K-148.306989
HF Energy-147.831231
Nuclear repulsion energy63.853272
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/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3181 3029 4.58      
2 A1 1711 1630 20.18      
3 A1 1534 1461 3.01      
4 A1 1085 1033 2.24      
5 A2 1010 961 0.00      
6 B1 3293 3135 15.97      
7 B1 1168 1112 4.27      
8 B2 1045 995 34.24      
9 B2 866 824 13.16      

Unscaled Zero Point Vibrational Energy (zpe) 7445.8 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 7090.6 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/6-31G*
ABC
1.34663 0.79672 0.55897

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.804
N2 0.000 0.620 -0.538
N3 0.000 -0.620 -0.538
H4 0.934 0.000 1.356
H5 -0.934 0.000 1.356

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.47821.47821.08541.0854
N21.47821.23962.20142.2014
N31.47821.23962.20142.2014
H41.08542.20142.20141.8685
H51.08542.20142.20141.8685

picture of diazirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 65.209 C1 N3 N2 65.209
N2 C1 N3 49.582 N2 C1 H4 117.528
N2 C1 H5 117.528 N3 C1 H4 117.528
N3 C1 H5 117.528 H4 C1 H5 118.792
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability