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All results from a given calculation for C2N2 (Cyanogen)

using model chemistry: wB97X-D/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 1Σg
Energy calculated at wB97X-D/cc-pVDZ
 hartrees
Energy at 0K-185.593068
Energy at 298.15K-185.592326
HF Energy-185.593068
Nuclear repulsion energy76.512536
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 wB97X-D/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 Σg 2502 2383 0.00      
2 Σg 891 848 0.00      
3 Σu 2306 2197 0.18      
4 Πg 557 531 0.00      
4 Πg 557 531 0.00      
5 Πu 256 244 17.78      
5 Πu 256 244 17.78      

Unscaled Zero Point Vibrational Energy (zpe) 3662.4 cm-1
Scaled (by 0.9526) Zero Point Vibrational Energy (zpe) 3488.8 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 wB97X-D/cc-pVDZ
B
0.15644

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/cc-pVDZ

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.694
C2 0.000 0.000 -0.694
N3 0.000 0.000 1.853
N4 0.000 0.000 -1.853

Atom - Atom Distances (Å)
  C1 C2 N3 N4
C11.38801.15932.5473
C21.38802.54731.1593
N31.15932.54733.7066
N42.54731.15933.7066

picture of Cyanogen state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 180.000 C2 C1 N3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.050      
2 C 0.050      
3 N -0.050      
4 N -0.050      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.685 0.000 0.000
y 0.000 -20.685 0.000
z 0.000 0.000 -29.138
Traceless
 xyz
x 4.226 0.000 0.000
y 0.000 4.226 0.000
z 0.000 0.000 -8.453
Polar
3z2-r2-16.906
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 2.148 0.000 0.000
y 0.000 2.148 0.000
z 0.000 0.000 7.245


<r2> (average value of r2) Å2
<r2> 68.546
(<r2>)1/2 8.279