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 CNN (Diazocarbene)

using model chemistry: PBE1PBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 3Σ-
Energy calculated at PBE1PBE/STO-3G
 hartrees
Energy at 0K-145.375331
Energy at 298.15K 
HF Energy-145.375331
Nuclear repulsion energy45.614188
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 PBE1PBE/STO-3G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 1723 1520 127.82 32.56 0.26 0.41
2 Σ 1026 905 27.01 2.15 0.43 0.60
3 Π 298 263 0.74 0.10 0.75 0.86
3 Π 298 263 0.74 0.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1672.2 cm-1
Scaled (by 0.8821) Zero Point Vibrational Energy (zpe) 1475.1 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 PBE1PBE/STO-3G
B
0.38544

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/STO-3G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.346
N2 0.000 0.000 -0.097
N3 0.000 0.000 1.250

Atom - Atom Distances (Å)
  C1 N2 N3
C11.24912.5955
N21.24911.3465
N32.59551.3465

picture of Diazocarbene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.107      
2 N -0.174      
3 N 0.067      


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 0.619 0.619
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.182 0.000 0.000
y 0.000 -14.182 0.000
z 0.000 0.000 -18.646
Traceless
 xyz
x 2.232 0.000 0.000
y 0.000 2.232 0.000
z 0.000 0.000 -4.464
Polar
3z2-r2-8.928
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.907 0.000 0.000
y 0.000 0.907 0.000
z 0.000 0.000 3.335


<r2> (average value of r2) Å2
<r2> 31.653
(<r2>)1/2 5.626