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All results from a given calculation for NCN (Cyanoimidogen)

using model chemistry: CCD/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D*H 3Σg
2 1 yes D*H 1Σg

State 1 (3Σg)

Jump to S2C1
Energy calculated at CCD/6-31G(2df,p)
 hartrees
Energy at 0K-147.150105
Energy at 298.15K-147.149950
HF Energy-146.726220
Nuclear repulsion energy47.078897
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 CCD/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σg 1340 1269 0.00      
2 Σu 1195 1132 524.98      
3 Πu 508 481 21.98      
3 Πu 508 481 21.98      

Unscaled Zero Point Vibrational Energy (zpe) 1775.7 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 1682.0 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 CCD/6-31G(2df,p)
B
0.40470

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G(2df,p)

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
N2 0.000 0.000 1.220
N3 0.000 0.000 -1.220

Atom - Atom Distances (Å)
  C1 N2 N3
C11.21961.2196
N21.21962.4391
N31.21962.4391

picture of Cyanoimidogen state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N2 C1 N3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

State 2 (1Σg)

Jump to S1C1
Energy calculated at CCD/6-31G(2df,p)
 hartrees
Energy at 0K-147.104559
Energy at 298.15K-147.104360
HF Energy-146.625631
Nuclear repulsion energy47.024023
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 CCD/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σg 1344 1273 0.00      
2 Σu 1685 1596 249.12      
3 Πu 592 560 12.15      
3 Πu 370 351 32.28      

Unscaled Zero Point Vibrational Energy (zpe) 1995.7 cm-1
Scaled (by 0.9472) Zero Point Vibrational Energy (zpe) 1890.3 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 CCD/6-31G(2df,p)
B
0.40376

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-31G(2df,p)

Point Group is D∞h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
N2 0.000 0.000 1.221
N3 0.000 0.000 -1.221

Atom - Atom Distances (Å)
  C1 N2 N3
C11.22101.2210
N21.22102.4420
N31.22102.4420

picture of Cyanoimidogen state 2 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N2 C1 N3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability