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All results from a given calculation for CHNCH2 (2H-Azirine)

using model chemistry: mPW1PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-132.654650
Energy at 298.15K-132.657733
HF Energy-132.654650
Nuclear repulsion energy63.999405
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 mPW1PW91/6-31G(2df,p)
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' 3252 3104 1.88      
2 A' 3120 2979 22.59      
3 A' 1769 1689 9.45      
4 A' 1518 1449 0.01      
5 A' 1348 1287 7.54      
6 A' 1063 1015 0.72      
7 A' 1016 970 50.62      
8 A' 737 704 14.86      
9 A" 3211 3065 20.98      
10 A" 1123 1072 1.73      
11 A" 999 953 0.06      
12 A" 824 787 12.00      

Unscaled Zero Point Vibrational Energy (zpe) 9989.4 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 9536.8 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 mPW1PW91/6-31G(2df,p)
ABC
1.19619 0.75335 0.50996

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.861 -0.169 0.000
C2 0.000 0.741 0.000
C3 0.650 -0.529 0.000
H4 0.040 1.822 0.000
H5 1.042 -0.954 0.920
H6 1.042 -0.954 -0.920

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.25251.55332.18502.25492.2549
C21.25251.42681.08172.19212.1921
C31.55331.42682.42901.08661.0866
H42.18501.08172.42903.09133.0913
H52.25492.19211.08663.09131.8402
H62.25492.19211.08663.09131.8402

picture of 2H-Azirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 70.520 N1 C2 H4 138.703
N1 C3 C2 49.480 N1 C3 H5 116.214
N1 C3 H6 116.214 C2 N1 C3 60.000
C2 C3 N1 49.480 C2 C3 H5 120.820
C2 C3 H6 120.820 C3 C2 H4 150.777
H5 C3 H6 115.721
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.160      
2 C -0.012      
3 C -0.306      
4 H 0.182      
5 H 0.148      
6 H 0.148      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.716 1.274 0.000 2.137
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.995 -1.258 0.000
y -1.258 -15.322 0.000
z 0.000 0.000 -17.099
Traceless
 xyz
x -3.785 -1.258 0.000
y -1.258 3.225 0.000
z 0.000 0.000 0.560
Polar
3z2-r21.120
x2-y2-4.673
xy-1.258
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.784 -0.503 0.000
y -0.503 4.248 0.000
z 0.000 0.000 2.785


<r2> (average value of r2) Å2
<r2> 32.816
(<r2>)1/2 5.728