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

using model chemistry: MP2=FULL/3-21G*

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 MP2=FULL/3-21G*
 hartrees
Energy at 0K-252.880746
Energy at 298.15K-252.880292
HF Energy-252.658823
Nuclear repulsion energy46.350156
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 MP2=FULL/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 Σ 1957 1855 23.83      
2 Σ 400 380 46.83      
3 Π 159 151 25.25      
3 Π 159 151 25.25      

Unscaled Zero Point Vibrational Energy (zpe) 1337.4 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 1267.9 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 MP2=FULL/3-21G*
B
0.15575

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.658
N2 0.000 0.000 -1.859
Na3 0.000 0.000 1.542

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.20172.1999
N21.20173.4016
Na32.19993.4016

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 MP2=FULL/3-21G*
 hartrees
Energy at 0K-252.885415
Energy at 298.15K-252.885170
HF Energy-252.665142
Nuclear repulsion energy51.462666
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 MP2=FULL/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 A' 1839 1744 3.87      
2 A' 416 395 51.49      
3 A' 166 157 11.47      

Unscaled Zero Point Vibrational Energy (zpe) 1210.8 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 1147.9 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 MP2=FULL/3-21G*
ABC
1.83024 0.28206 0.24440

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.135 0.630 0.000
N2 0.000 1.067 0.000
Na3 -0.619 -1.022 0.000

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.21652.4102
N21.21652.1787
Na32.41022.1787

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 85.483 C1 Na3 N2 30.211
N2 C1 Na3 64.306
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V)

Jump to S1C1 S1C2
Energy calculated at MP2=FULL/3-21G*
 hartrees
Energy at 0K-252.879645
Energy at 298.15K 
HF Energy-252.670367
Nuclear repulsion energy48.758725
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 MP2=FULL/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 Σ 1956 1855 39.71      
2 Σ 452 429 58.94      
3 Π 28i 26i 5.47      
3 Π 28i 26i 5.47      

Unscaled Zero Point Vibrational Energy (zpe) 1176.9 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 1115.7 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 MP2=FULL/3-21G*
B
0.18007

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.854
N2 0.000 0.000 -0.647
Na3 0.000 0.000 1.423

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.20693.2769
N21.20692.0700
Na33.27692.0700

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