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All results from a given calculation for NCN (Cyanoimidogen)

using model chemistry: MP2/CEP-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/CEP-31G
 hartrees
Energy at 0K-24.902789
Energy at 298.15K-24.902493
HF Energy-24.729245
Nuclear repulsion energy21.952353
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/CEP-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 1211 1170 0.00      
2 Σu 800 773 471.26      
3 Πu 476 460 15.52      
3 Πu 476 460 15.52      

Unscaled Zero Point Vibrational Energy (zpe) 1481.5 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 1431.6 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/CEP-31G
B
0.37582

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-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 1.266
N3 0.000 0.000 -1.266

Atom - Atom Distances (Å)
  C1 N2 N3
C11.26561.2656
N21.26562.5311
N31.26562.5311

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/CEP-31G
 hartrees
Energy at 0K-24.866193
Energy at 298.15K-24.865908
HF Energy-24.613820
Nuclear repulsion energy21.780541
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/CEP-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 1203 1163 0.00      
2 Σu 1330 1285 176.39      
3 Πu 475 459 1.13      
3 Πu 393 380 45.62      

Unscaled Zero Point Vibrational Energy (zpe) 1700.4 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 1643.1 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/CEP-31G
B
0.36996

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-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 1.276
N3 0.000 0.000 -1.276

Atom - Atom Distances (Å)
  C1 N2 N3
C11.27551.2755
N21.27552.5511
N31.27552.5511

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