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

using model chemistry: MP2/CEP-31G*

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/CEP-31G*
 hartrees
Energy at 0K-15.623601
Energy at 298.15K-15.622838
HF Energy-15.343001
Nuclear repulsion energy10.386607
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/CEP-31G*
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 1994 1893 7.31      
2 Σ 333 316 57.33      
3 Π 89 85 20.42      
3 Π 89 85 20.42      

Unscaled Zero Point Vibrational Energy (zpe) 1252.8 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 1189.4 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/CEP-31G*
B
0.14439

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.705
N2 0.000 0.000 -1.919
Na3 0.000 0.000 1.606

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.21372.3109
N21.21373.5246
Na32.31093.5246

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/CEP-31G*
 hartrees
Energy at 0K-15.628523
Energy at 298.15K-15.628247
HF Energy-15.351379
Nuclear repulsion energy10.687315
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/CEP-31G*
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' 1932 1835 9.58      
2 A' 344 327 68.58      
3 A' 196 186 5.32      

Unscaled Zero Point Vibrational Energy (zpe) 1235.9 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 1173.4 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/CEP-31G*
ABC
1.76134 0.26456 0.23001

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.106 0.636 0.000
N2 0.000 1.152 0.000
Na3 -0.603 -1.080 0.000

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.22082.4224
N21.22082.3124
Na32.42242.3124

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 80.114 C1 Na3 N2 29.767
N2 C1 Na3 70.119
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V)

Jump to S1C1 S1C2
Energy calculated at MP2/CEP-31G*
 hartrees
Energy at 0K-15.621267
Energy at 298.15K 
HF Energy-15.351279
Nuclear repulsion energy10.520967
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/CEP-31G*
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 1988 1887 57.68      
2 Σ 344 327 70.89      
3 Π 77i 73i 6.29      
3 Π 77i 73i 6.29      

Unscaled Zero Point Vibrational Energy (zpe) 1089.3 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 1034.1 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/CEP-31G*
B
0.16467

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.919
N2 0.000 0.000 -0.702
Na3 0.000 0.000 1.494

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.21713.4132
N21.21712.1961
Na33.41322.1961

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