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All results from a given calculation for NCN (Cyanoimidogen)

using model chemistry: MP2/3-21G*

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 MP2/3-21G*
 hartrees
Energy at 0K-146.104939
Energy at 298.15K-146.104751
HF Energy-145.895320
Nuclear repulsion energy46.622382
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 MP2/3-21G*
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 1281 1218 0.00      
2 Σu 867 825 319.63      
3 Πu 530 504 15.54      
3 Πu 530 504 15.54      

Unscaled Zero Point Vibrational Energy (zpe) 1603.7 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 1525.6 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 MP2/3-21G*
B
0.39689

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

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 1.232
N3 0.000 0.000 -1.232

Atom - Atom Distances (Å)
  C1 N2 N3
C11.23151.2315
N21.23152.4630
N31.23152.4630

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 MP2/3-21G*
 hartrees
Energy at 0K-146.065313
Energy at 298.15K-146.065120
HF Energy-145.786921
Nuclear repulsion energy46.277467
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 MP2/3-21G*
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 1254 1193 0.00      
2 Σu 1556 1480 127.75      
3 Πu 478 455 41.20      
3 Πu 477 453 2.37      

Unscaled Zero Point Vibrational Energy (zpe) 1881.9 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 1790.3 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 MP2/3-21G*
B
0.39104

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

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 1.241
N3 0.000 0.000 -1.241

Atom - Atom Distances (Å)
  C1 N2 N3
C11.24071.2407
N21.24072.4814
N31.24072.4814

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