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All results from a given calculation for NCN (Cyanoimidogen)

using model chemistry: CISD/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 CISD/3-21G
 hartrees
Energy at 0K-146.121205
Energy at 298.15K-146.121014
HF Energy-145.895520
Nuclear repulsion energy46.294322
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 CISD/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 1230 1158 0.00      
2 Σu 1261 1187 212.08      
3 Πu 487 458 12.53      
3 Πu 487 458 12.53      

Unscaled Zero Point Vibrational Energy (zpe) 1732.1 cm-1
Scaled (by 0.9413) Zero Point Vibrational Energy (zpe) 1630.5 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 CISD/3-21G
B
0.39132

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/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 1.240
N3 0.000 0.000 -1.240

Atom - Atom Distances (Å)
  C1 N2 N3
C11.24021.2402
N21.24022.4805
N31.24022.4805

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 CISD/3-21G
 hartrees
Energy at 0K-146.054232
Energy at 298.15K-146.054047
HF Energy-145.788115
Nuclear repulsion energy46.550237
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 CISD/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 1283 1208 0.00      
2 Σu 1582 1489 176.31      
3 Πu 502 472 5.45      
3 Πu 457 430 26.41      

Unscaled Zero Point Vibrational Energy (zpe) 1911.6 cm-1
Scaled (by 0.9413) Zero Point Vibrational Energy (zpe) 1799.4 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 CISD/3-21G
B
0.39566

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/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 1.233
N3 0.000 0.000 -1.233

Atom - Atom Distances (Å)
  C1 N2 N3
C11.23341.2334
N21.23342.4668
N31.23342.4668

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