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All results from a given calculation for NCN (Cyanoimidogen)

using model chemistry: CCD/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 CCD/3-21G*
 hartrees
Energy at 0K-146.123912
Energy at 298.15K-146.123736
HF Energy-145.895462
Nuclear repulsion energy46.471889
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 CCD/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 1259 1204 0.00      
2 Σu 1098 1050 258.70      
3 Πu 508 486 13.42      
3 Πu 508 486 13.42      

Unscaled Zero Point Vibrational Energy (zpe) 1686.1 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 1612.8 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 CCD/3-21G*
B
0.39433

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/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 1.235
N3 0.000 0.000 -1.235

Atom - Atom Distances (Å)
  C1 N2 N3
C11.23551.2355
N21.23552.4710
N31.23552.4710

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 CCD/3-21G*
 hartrees
Energy at 0K-146.069818
Energy at 298.15K-146.069609
HF Energy-145.787882
Nuclear repulsion energy46.490387
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 CCD/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 1280 1225 0.00      
2 Σu 1381 1321 265.15      
3 Πu 483 462 4.33      
3 Πu 458 438 27.18      

Unscaled Zero Point Vibrational Energy (zpe) 1800.8 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 1722.4 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 CCD/3-21G*
B
0.39465

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/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 1.235
N3 0.000 0.000 -1.235

Atom - Atom Distances (Å)
  C1 N2 N3
C11.23501.2350
N21.23502.4700
N31.23502.4700

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