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

using model chemistry: mPW1PW91/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-132.662111
Energy at 298.15K-132.665174
HF Energy-132.662111
Nuclear repulsion energy63.718418
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/aug-cc-pVDZ
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' 3235 3100 1.23      
2 A' 3121 2991 25.29      
3 A' 1758 1685 9.65      
4 A' 1503 1440 0.33      
5 A' 1337 1281 6.69      
6 A' 1054 1010 0.14      
7 A' 1008 966 54.56      
8 A' 712 682 15.89      
9 A" 3217 3083 19.24      
10 A" 1109 1063 1.62      
11 A" 985 943 0.22      
12 A" 799 765 17.82      

Unscaled Zero Point Vibrational Energy (zpe) 9917.6 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 9504.0 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 mPW1PW91/aug-cc-pVDZ
ABC
1.18618 0.74637 0.50555

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.864 -0.169 0.000
C2 0.000 0.744 0.000
C3 0.654 -0.532 0.000
H4 0.040 1.831 0.000
H5 1.044 -0.959 0.925
H6 1.044 -0.959 -0.925

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.25721.56082.19522.26312.2631
C21.25721.43331.08822.20112.2011
C31.56081.43332.44161.09131.0913
H42.19521.08822.44163.10633.1063
H52.26312.20111.09133.10631.8510
H62.26312.20111.09133.10631.8510

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 70.571 N1 C2 H4 138.651
N1 C3 C2 49.429 N1 C3 H5 116.019
N1 C3 H6 116.019 C2 N1 C3 60.000
C2 C3 N1 49.429 C2 C3 H5 120.744
C2 C3 H6 120.744 C3 C2 H4 150.778
H5 C3 H6 115.994
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.458      
2 C 0.464      
3 C 0.865      
4 H -0.194      
5 H -0.338      
6 H -0.338      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.824 1.274 0.000 2.225
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.805 -1.316 0.000
y -1.316 -15.589 0.000
z 0.000 0.000 -17.545
Traceless
 xyz
x -4.238 -1.316 0.000
y -1.316 3.585 0.000
z 0.000 0.000 0.653
Polar
3z2-r21.305
x2-y2-5.216
xy-1.316
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.745 -0.409 0.000
y -0.409 4.839 0.000
z 0.000 0.000 3.475


<r2> (average value of r2) Å2
<r2> 33.326
(<r2>)1/2 5.773