return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CN2 (3H-Diazirin-3-ylidene)

using model chemistry: B1B95/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/TZVP
 hartrees
Energy at 0K-147.429509
Energy at 298.15K-147.429360
HF Energy-147.429509
Nuclear repulsion energy52.741038
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 B1B95/TZVP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 1658 1587 14.13      
2 A1 1184 1133 26.74      
3 B2 1065 1019 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 1953.6 cm-1
Scaled (by 0.9569) Zero Point Vibrational Energy (zpe) 1869.4 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 B1B95/TZVP
ABC
1.49329 1.34823 0.70853

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.854
N2 0.000 0.635 -0.366
N3 0.000 -0.635 -0.366

Atom - Atom Distances (Å)
  C1 N2 N3
C11.37531.3753
N21.37531.2698
N31.37531.2698

picture of 3H-Diazirin-3-ylidene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 62.508 C1 N3 N2 62.508
N2 C1 N3 54.985
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.095      
2 N 0.048      
3 N 0.048      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.639 0.639
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.612 0.000 0.000
y 0.000 -17.712 0.000
z 0.000 0.000 -19.568
Traceless
 xyz
x 4.028 0.000 0.000
y 0.000 -0.622 0.000
z 0.000 0.000 -3.406
Polar
3z2-r2-6.812
x2-y23.100
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.202 0.000 0.000
y 0.000 2.970 0.000
z 0.000 0.000 3.270


<r2> (average value of r2) Å2
<r2> 22.698
(<r2>)1/2 4.764