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All results from a given calculation for NCN (Cyanoimidogen)

using model chemistry: QCISD/6-311G**

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 QCISD/6-311G**
 hartrees
Energy at 0K-147.152622
Energy at 298.15K-147.152353
HF Energy-146.747727
Nuclear repulsion energy46.421849
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 QCISD/6-311G**
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 1244 1187 0.00      
2 Σu 1415 1350 287.92      
3 Πu 433 413 15.71      
3 Πu 433 413 15.71      

Unscaled Zero Point Vibrational Energy (zpe) 1762.0 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 1681.1 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 QCISD/6-311G**
B
0.39348

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G**

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 1.237
N3 0.000 0.000 -1.237

Atom - Atom Distances (Å)
  C1 N2 N3
C11.23681.2368
N21.23682.4737
N31.23682.4737

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 QCISD/6-311G**
 hartrees
Energy at 0K-147.094523
Energy at 298.15K-147.094244
HF Energy-146.644623
Nuclear repulsion energy46.609347
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 QCISD/6-311G**
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 1271 1213 0.00      
2 Σu 1722 1643 172.38      
3 Πu 553 527 7.23      
3 Πu 322 307 30.54      

Unscaled Zero Point Vibrational Energy (zpe) 1933.7 cm-1
Scaled (by 0.9541) Zero Point Vibrational Energy (zpe) 1844.9 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 QCISD/6-311G**
B
0.39667

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G**

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
C11.23191.2319
N21.23192.4637
N31.23192.4637

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