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All results from a given calculation for C2N2 (Cyanogen)

using model chemistry: wB97X-D/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-185.645207
Energy at 298.15K-185.644455
HF Energy-185.645207
Nuclear repulsion energy77.160235
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/aug-cc-pVTZ
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 2493 2385 0.00      
2 Σg 883 845 0.00      
3 Σu 2311 2211 0.01      
4 Πg 555 531 0.00      
4 Πg 555 531 0.00      
5 Πu 253 242 22.09      
5 Πu 253 242 22.09      

Unscaled Zero Point Vibrational Energy (zpe) 3650.7 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 3492.3 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/aug-cc-pVTZ
B
0.15892

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

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.681
C2 0.000 0.000 -0.681
N3 0.000 0.000 1.831
N4 0.000 0.000 -1.831

Atom - Atom Distances (Å)
  C1 C2 N3 N4
C11.36201.15052.5125
C21.36202.51251.1505
N31.15052.51253.6630
N42.51251.15053.6630

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/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.486      
2 C 0.486      
3 N -0.486      
4 N -0.486      


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 -20.842 0.000 0.000
y 0.000 -20.842 0.000
z 0.000 0.000 -30.039
Traceless
 xyz
x 4.599 0.000 0.000
y 0.000 4.599 0.000
z 0.000 0.000 -9.197
Polar
3z2-r2-18.394
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 3.259 0.000 0.000
y 0.000 3.259 0.000
z 0.000 0.000 8.088


<r2> (average value of r2) Å2
<r2> 67.961
(<r2>)1/2 8.244