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All results from a given calculation for NCN (Cyanoimidogen)

using model chemistry: MP2/CEP-121G*

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-121G*
 hartrees
Energy at 0K-25.142152
Energy at 298.15K-25.141913
HF Energy-24.802023
Nuclear repulsion energy22.590092
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-121G*
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 1321 1258 0.00      
2 Σu 819 780 694.97      
3 Πu 502 478 20.09      
3 Πu 502 478 20.09      

Unscaled Zero Point Vibrational Energy (zpe) 1571.8 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 1497.6 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-121G*
B
0.39798

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

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 1.230
N3 0.000 0.000 -1.230

Atom - Atom Distances (Å)
  C1 N2 N3
C11.22981.2298
N21.22982.4596
N31.22982.4596

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-121G*
 hartrees
Energy at 0K-25.110099
Energy at 298.15K-25.109863
HF Energy-24.697504
Nuclear repulsion energy22.378740
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-121G*
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 1277 1217 0.00      
2 Σu 1816 1731 50.17      
3 Πu 533 508 3.61      
3 Πu 375 358 45.51      

Unscaled Zero Point Vibrational Energy (zpe) 2001.0 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 1906.5 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/CEP-121G*
B
0.39057

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

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
C11.24141.2414
N21.24142.4829
N31.24142.4829

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