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All results from a given calculation for NaCN (Sodium Cyanide)

using model chemistry: QCISD(TQ)/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no C*V 1Σ
1 2 yes CS 1A

Conformer 1 (C*V)

Jump to S1C2
Energy calculated at QCISD(TQ)/cc-pVTZ
 hartrees
Energy at 0K-254.578081
Energy at 298.15K 
HF Energy-254.211622
Nuclear repulsion energy46.053969
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(TQ)/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at QCISD(TQ)/cc-pVTZ
B
0.15007

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(TQ)/cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.702
N2 0.000 0.000 -1.876
Na3 0.000 0.000 1.577

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.17392.2792
N21.17393.4531
Na32.27923.4531

picture of Sodium Cyanide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 Na3 0.000 C1 Na3 N2 0.000
N2 C1 Na3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at QCISD(TQ)/cc-pVTZ
 hartrees
Energy at 0K-254.583327
Energy at 298.15K-254.583077
HF Energy-254.219007
Nuclear repulsion energy51.206046
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(TQ)/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 2063 2063        
2 A' 373 373        
3 A' 186 186        

Unscaled Zero Point Vibrational Energy (zpe) 1311.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1311.2 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(TQ)/cc-pVTZ
ABC
1.88841 0.26962 0.23594

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(TQ)/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.092 0.659 0.000
N2 0.000 1.117 0.000
Na3 -0.596 -1.070 0.000

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.18392.4167
N21.18392.2665
Na32.41672.2665

picture of Sodium Cyanide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 Na3 82.526 C1 Na3 N2 29.060
N2 C1 Na3 68.414
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability