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All results from a given calculation for C2N2 (Cyanogen)

using model chemistry: wB97X-D/SDD

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/SDD
 hartrees
Energy at 0K-185.534106
Energy at 298.15K-185.533409
HF Energy-185.534106
Nuclear repulsion energy75.788361
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/SDD
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 2453 2453 0.00      
2 Σg 882 882 0.00      
3 Σu 2222 2222 0.95      
4 Πg 591 591 0.00      
4 Πg 591 591 0.00      
5 Πu 263 263 12.36      
5 Πu 263 263 12.36      

Unscaled Zero Point Vibrational Energy (zpe) 3632.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3632.4 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 wB97X-D/SDD
B
0.15396

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

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 1.870
N4 0.000 0.000 -1.870

Atom - Atom Distances (Å)
  C1 C2 N3 N4
C11.38761.17632.5639
C21.38762.56391.1763
N31.17632.56393.7401
N42.56391.17633.7401

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/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.043      
2 C -0.043      
3 N 0.043      
4 N 0.043      


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 -20.864 0.000 0.000
y 0.000 -20.864 0.000
z 0.000 0.000 -30.793
Traceless
 xyz
x 4.965 0.000 0.000
y 0.000 4.965 0.000
z 0.000 0.000 -9.930
Polar
3z2-r2-19.859
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 1.948 0.000 0.000
y 0.000 1.948 0.000
z 0.000 0.000 7.765


<r2> (average value of r2) Å2
<r2> 69.835
(<r2>)1/2 8.357