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

using model chemistry: MP2/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
1 2 no CS 1A
1 3 no C*V 1Σ

Conformer 1 (C*V)

Jump to S1C2 S1C3
Energy calculated at MP2/CEP-121G
 hartrees
Energy at 0K-15.526800
Energy at 298.15K-15.526257
HF Energy-15.305808
Nuclear repulsion energy10.298115
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-121G
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 1828 1784 12.12      
2 Σ 351 342 53.54      
3 Π 144 141 25.35      
3 Π 144 141 25.35      

Unscaled Zero Point Vibrational Energy (zpe) 1233.8 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 1204.2 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-121G
B
0.14801

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.676
N2 0.000 0.000 -1.907
Na3 0.000 0.000 1.582

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.23032.2585
N21.23033.4888
Na32.25853.4888

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-121G
 hartrees
Energy at 0K-15.522053
Energy at 298.15K-15.521654
HF Energy-15.305756
Nuclear repulsion energy10.571051
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-121G
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' 1761 1719 3.67      
2 A' 350 342 57.50      
3 A' 110 107 12.49      

Unscaled Zero Point Vibrational Energy (zpe) 1110.4 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 1083.8 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/CEP-121G
ABC
1.77398 0.26248 0.22865

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.163 0.672 0.000
N2 0.000 1.097 0.000
Na3 -0.634 -1.064 0.000

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.23802.4983
N21.23802.2520
Na32.49832.2520

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 86.271 C1 Na3 N2 29.636
N2 C1 Na3 64.092
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V)

Jump to S1C1 S1C2
Energy calculated at MP2/CEP-121G
 hartrees
Energy at 0K-15.525219
Energy at 298.15K-15.524625
HF Energy-15.318812
Nuclear repulsion energy10.478206
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-121G
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 1857 1812 36.25      
2 Σ 386 377 65.33      
3 Π 118 115 8.03      
3 Π 118 115 8.03      

Unscaled Zero Point Vibrational Energy (zpe) 1239.3 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 1209.5 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-121G
B
0.17121

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.898
N2 0.000 0.000 -0.668
Na3 0.000 0.000 1.460

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.23003.3583
N21.23002.1284
Na33.35832.1284

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