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All results from a given calculation for NCN (Cyanoimidogen)

using model chemistry: MP2/6-31G*

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 MP2/6-31G*
 hartrees
Energy at 0K-147.052255
Energy at 298.15K-147.052053
HF Energy-146.715175
Nuclear repulsion energy46.936385
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 MP2/6-31G*
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 1364 1286 0.00      
2 Σu 982 926 601.25      
3 Πu 501 473 24.22      
3 Πu 501 473 24.22      

Unscaled Zero Point Vibrational Energy (zpe) 1673.9 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 1578.5 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 MP2/6-31G*
B
0.40225

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G*

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 1.224
N3 0.000 0.000 -1.224

Atom - Atom Distances (Å)
  C1 N2 N3
C11.22351.2235
N21.22352.4470
N31.22352.4470

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 MP2/6-31G*
 hartrees
Energy at 0K-147.018928
Energy at 298.15K-147.018693
HF Energy-146.611998
Nuclear repulsion energy46.540537
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 MP2/6-31G*
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 1323 1248 0.00      
2 Σu 1896 1788 54.22      
3 Πu 520 490 6.74      
3 Πu 387 365 49.52      

Unscaled Zero Point Vibrational Energy (zpe) 2063.0 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 1945.4 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 MP2/6-31G*
B
0.39550

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G*

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 1.234
N3 0.000 0.000 -1.234

Atom - Atom Distances (Å)
  C1 N2 N3
C11.23371.2337
N21.23372.4673
N31.23372.4673

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