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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-252.874282
Energy at 298.15K-252.873850
HF Energy-252.654293
Nuclear repulsion energy46.259632
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 1869 20.26      
2 Σ 396 378 45.10      
3 Π 166 159 26.12      
3 Π 166 159 26.12      

Unscaled Zero Point Vibrational Energy (zpe) 1342.5 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 1281.8 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 MP2=FULL/3-21G
B
0.15492

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 -0.662
N2 0.000 0.000 -1.863
Na3 0.000 0.000 1.547

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.20182.2081
N21.20183.4099
Na32.20813.4099

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-252.875001
Energy at 298.15K-252.874730
HF Energy-252.657470
Nuclear repulsion energy51.217948
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' 1845 1762 2.97      
2 A' 395 377 50.01      
3 A' 161 154 8.72      

Unscaled Zero Point Vibrational Energy (zpe) 1200.7 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 1146.4 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=FULL/3-21G
ABC
1.80943 0.27861 0.24144

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 1.124 0.627 0.000
N2 0.000 1.090 0.000
Na3 -0.613 -1.036 0.000

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.21552.4052
N21.21552.2130
Na32.40522.2130

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 83.703 C1 Na3 N2 30.155
N2 C1 Na3 66.142
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-252.872167
Energy at 298.15K-252.871406
HF Energy-252.665269
Nuclear repulsion energy48.536781
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 1967 1878 35.07      
2 Σ 442 422 57.62      
3 Π 58 56 6.54      
3 Π 58 56 6.54      

Unscaled Zero Point Vibrational Energy (zpe) 1262.7 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 1205.6 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
0.17780

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 -1.862
N2 0.000 0.000 -0.656
Na3 0.000 0.000 1.433

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.20553.2950
N21.20552.0896
Na33.29502.0896

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