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

using model chemistry: MP2/6-31G(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 MP2/6-31G(2df,p)
 hartrees
Energy at 0K-254.502996
Energy at 298.15K-254.502255
HF Energy-254.167823
Nuclear repulsion energy46.074118
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 MP2/6-31G(2df,p)
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 2056 1942 16.77      
2 Σ 367 346 57.53      
3 Π 83 79 16.01      
3 Π 83 79 16.01      

Unscaled Zero Point Vibrational Energy (zpe) 1294.5 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 1222.7 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 MP2/6-31G(2df,p)
B
0.15149

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.688
N2 0.000 0.000 -1.874
Na3 0.000 0.000 1.568

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.18542.2557
N21.18543.4411
Na32.25573.4411

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 MP2/6-31G(2df,p)
 hartrees
Energy at 0K-254.510308
Energy at 298.15K-254.510109
HF Energy-254.178300
Nuclear repulsion energy51.443744
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 MP2/6-31G(2df,p)
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' 1986 1876 9.03      
2 A' 390 369 63.83      
3 A' 212 200 5.12      

Unscaled Zero Point Vibrational Energy (zpe) 1293.8 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 1222.0 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 MP2/6-31G(2df,p)
ABC
1.84260 0.27787 0.24146

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.085 0.621 0.000
N2 0.000 1.121 0.000
Na3 -0.592 -1.052 0.000

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.19452.3692
N21.19452.2517
Na32.36922.2517

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 80.540 C1 Na3 N2 29.824
N2 C1 Na3 69.637
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V)

Jump to S1C1 S1C2
Energy calculated at MP2/6-31G(2df,p)
 hartrees
Energy at 0K-254.502470
Energy at 298.15K 
HF Energy-254.176482
Nuclear repulsion energy48.390738
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 MP2/6-31G(2df,p)
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 2048 1935 60.32      
2 Σ 416 393 66.43      
3 Π 71i 67i 3.80      
3 Π 71i 67i 3.80      

Unscaled Zero Point Vibrational Energy (zpe) 1160.9 cm-1
Scaled (by 0.9445) Zero Point Vibrational Energy (zpe) 1096.4 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 MP2/6-31G(2df,p)
B
0.17490

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G(2df,p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.866
N2 0.000 0.000 -0.676
Na3 0.000 0.000 1.448

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.19013.3147
N21.19012.1245
Na33.31472.1245

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