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All results from a given calculation for NCN (Cyanoimidogen)

using model chemistry: TPSSh/3-21G

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 TPSSh/3-21G
 hartrees
Energy at 0K-146.681355
Energy at 298.15K-146.681167
HF Energy-146.681355
Nuclear repulsion energy46.099213
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 TPSSh/3-21G
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 1203 1166 0.00      
2 Σu 1448 1403 148.91      
3 Πu 484 469 11.93      
3 Πu 484 469 11.93      

Unscaled Zero Point Vibrational Energy (zpe) 1809.3 cm-1
Scaled (by 0.9688) Zero Point Vibrational Energy (zpe) 1752.9 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 TPSSh/3-21G
B
0.38803

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/3-21G

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 1.245
N3 0.000 0.000 -1.245

Atom - Atom Distances (Å)
  C1 N2 N3
C11.24551.2455
N21.24552.4910
N31.24552.4910

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 TPSSh/3-21G
 hartrees
Energy at 0K-146.622064
Energy at 298.15K-146.621883
HF Energy-146.622064
Nuclear repulsion energy46.197899
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 TPSSh/3-21G
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 1227 1188 0.00      
2 Σu 1768 1712 62.42      
3 Πu 522 506 2.69      
3 Πu 446 432 28.48      

Unscaled Zero Point Vibrational Energy (zpe) 1981.0 cm-1
Scaled (by 0.9688) Zero Point Vibrational Energy (zpe) 1919.2 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 TPSSh/3-21G
B
0.38970

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/3-21G

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 1.243
N3 0.000 0.000 -1.243

Atom - Atom Distances (Å)
  C1 N2 N3
C11.24281.2428
N21.24282.4856
N31.24282.4856

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