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All results from a given calculation for NCN (Cyanoimidogen)

using model chemistry: MP2=FULL/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=FULL/6-31G*
 hartrees
Energy at 0K-147.063943
Energy at 298.15K-147.063765
HF Energy-146.715087
Nuclear repulsion energy46.988358
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=FULL/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 1368 1289 0.00      
2 Σu 994 937 597.94      
3 Πu 516 486 24.41      
3 Πu 516 486 24.41      

Unscaled Zero Point Vibrational Energy (zpe) 1696.8 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 1598.8 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=FULL/6-31G*
B
0.40315

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/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 1.222
N3 0.000 0.000 -1.222

Atom - Atom Distances (Å)
  C1 N2 N3
C11.22191.2219
N21.22192.4438
N31.22192.4438

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=FULL/6-31G*
 hartrees
Energy at 0K-147.030608
Energy at 298.15K-147.030399
HF Energy-146.612264
Nuclear repulsion energy46.599479
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=FULL/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 1327 1250 0.00      
2 Σu 1908 1798 52.65      
3 Πu 534 503 6.82      
3 Πu 403 380 49.77      

Unscaled Zero Point Vibrational Energy (zpe) 2086.1 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 1965.6 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=FULL/6-31G*
B
0.39650

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/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 1.232
N3 0.000 0.000 -1.232

Atom - Atom Distances (Å)
  C1 N2 N3
C11.23211.2321
N21.23212.4642
N31.23212.4642

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