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All results from a given calculation for C2N2 (Cyanogen)

using model chemistry: B2PLYP=FULLultrafine/TZVP

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 B2PLYP=FULLultrafine/TZVP
 hartrees
Energy at 0K-185.580551
Energy at 298.15K 
HF Energy-185.357328
Nuclear repulsion energy76.667455
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 B2PLYP=FULLultrafine/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 Σg 2362 2362 0.00      
2 Σg 878 878 0.00      
3 Σu 2191 2191 1.97      
4 Πg 528 528 0.00      
4 Πg 528 528 0.00      
5 Πu 245 245 19.01      
5 Πu 245 245 19.01      

Unscaled Zero Point Vibrational Energy (zpe) 3488.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3488.9 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 B2PLYP=FULLultrafine/TZVP
B
0.15743

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/TZVP

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.688
C2 0.000 0.000 -0.688
N3 0.000 0.000 1.849
N4 0.000 0.000 -1.849

Atom - Atom Distances (Å)
  C1 C2 N3 N4
C11.37511.16132.5364
C21.37512.53641.1613
N31.16132.53643.6977
N42.53641.16133.6977

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