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All results from a given calculation for NCN (Cyanoimidogen)

using model chemistry: QCISD/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-147.133601
Energy at 298.15K-147.133290
HF Energy-146.734408
Nuclear repulsion energy46.020039
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/aug-cc-pVDZ
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 1229 1191 0.00      
2 Σu 1409 1365 336.30      
3 Πu 409 396 14.59      
3 Πu 409 396 14.59      

Unscaled Zero Point Vibrational Energy (zpe) 1728.1 cm-1
Scaled (by 0.9687) Zero Point Vibrational Energy (zpe) 1674.0 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/aug-cc-pVDZ
B
0.38670

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/aug-cc-pVDZ

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 1.248
N3 0.000 0.000 -1.248

Atom - Atom Distances (Å)
  C1 N2 N3
C11.24761.2476
N21.24762.4952
N31.24762.4952

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/aug-cc-pVDZ
 hartrees
Energy at 0K-147.075957
Energy at 298.15K-147.075622
HF Energy-146.630618
Nuclear repulsion energy46.192414
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/aug-cc-pVDZ
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 1254 1215 0.00      
2 Σu 1702 1649 174.81      
3 Πu 542 525 6.20      
3 Πu 281 272 27.68      

Unscaled Zero Point Vibrational Energy (zpe) 1889.4 cm-1
Scaled (by 0.9687) Zero Point Vibrational Energy (zpe) 1830.3 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/aug-cc-pVDZ
B
0.38960

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/aug-cc-pVDZ

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 1.243
N3 0.000 0.000 -1.243

Atom - Atom Distances (Å)
  C1 N2 N3
C11.24301.2430
N21.24302.4859
N31.24302.4859

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