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

using model chemistry: QCISD/6-31G(2df,p)

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
1 3 no C*V 1Σ

Conformer 1 (C*V)

Jump to S1C2 S1C3
Energy calculated at QCISD/6-31G(2df,p)
 hartrees
Energy at 0K-254.507136
Energy at 298.15K-254.506400
HF Energy-254.169915
Nuclear repulsion energy46.300967
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/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σ 2197 2081 3.85      
2 Σ 366 347 58.62      
3 Π 85 80 14.79      
3 Π 85 80 14.79      

Unscaled Zero Point Vibrational Energy (zpe) 1366.3 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 1294.4 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 QCISD/6-31G(2df,p)
B
0.15220

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.693
N2 0.000 0.000 -1.865
Na3 0.000 0.000 1.565

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.17242.2582
N21.17243.4306
Na32.25823.4306

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 S1C3
Energy calculated at QCISD/6-31G(2df,p)
 hartrees
Energy at 0K-254.515741
Energy at 298.15K-254.515526
HF Energy-254.180034
Nuclear repulsion energy51.576479
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/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 2096 1986 24.28      
2 A' 394 374 61.04      
3 A' 196 186 7.28      

Unscaled Zero Point Vibrational Energy (zpe) 1343.4 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 1272.8 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 QCISD/6-31G(2df,p)
ABC
1.89736 0.27582 0.24081

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.095 0.649 0.000
N2 0.000 1.098 0.000
Na3 -0.597 -1.053 0.000

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.18382.4006
N21.18382.2324
Na32.40062.2324

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 83.244 C1 Na3 N2 29.320
N2 C1 Na3 67.436
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V)

Jump to S1C1 S1C2
Energy calculated at QCISD/6-31G(2df,p)
 hartrees
Energy at 0K-254.509649
Energy at 298.15K 
HF Energy-254.177553
Nuclear repulsion energy48.618518
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/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σ 2128 2017 96.54      
2 Σ 421 399 67.25      
3 Π 64i 61i 4.95      
3 Π 64i 61i 4.95      

Unscaled Zero Point Vibrational Energy (zpe) 1210.3 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 1146.7 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/6-31G(2df,p)
B
0.17628

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.857
N2 0.000 0.000 -0.676
Na3 0.000 0.000 1.443

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.18193.3006
N21.18192.1187
Na33.30062.1187

picture of Sodium Cyanide state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 Na3 180.000 C1 Na3 N2 0.000
N2 C1 Na3 0.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability