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

using model chemistry: MP2/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-254.558942
Energy at 298.15K-254.558286
HF Energy-254.210380
Nuclear repulsion energy45.914880
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/cc-pVTZ
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 2050 1947 12.45      
2 Σ 356 338 59.22      
3 Π 110 104 16.38      
3 Π 110 104 16.38      

Unscaled Zero Point Vibrational Energy (zpe) 1312.8 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 1246.5 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/cc-pVTZ
B
0.14959

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.700
N2 0.000 0.000 -1.881
Na3 0.000 0.000 1.579

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.18152.2786
N21.18153.4601
Na32.27863.4601

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/cc-pVTZ
 hartrees
Energy at 0K-254.563276
Energy at 298.15K-254.563035
HF Energy-254.217940
Nuclear repulsion energy51.089831
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/cc-pVTZ
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' 1984 1884 7.84      
2 A' 369 350 67.96      
3 A' 195 185 6.57      

Unscaled Zero Point Vibrational Energy (zpe) 1273.9 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 1209.6 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/cc-pVTZ
ABC
1.85594 0.27017 0.23584

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.085 0.643 0.000
N2 0.000 1.133 0.000
Na3 -0.592 -1.072 0.000

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.19012.3983
N21.19012.2825
Na32.39832.2825

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 80.739 C1 Na3 N2 29.324
N2 C1 Na3 69.936
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V)

Jump to S1C1 S1C2
Energy calculated at MP2/cc-pVTZ
 hartrees
Energy at 0K-254.557497
Energy at 298.15K 
HF Energy-254.217426
Nuclear repulsion energy48.112370
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/cc-pVTZ
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 2039 1936 55.73      
2 Σ 389 369 70.07      
3 Π 29i 27i 3.66      
3 Π 29i 27i 3.66      

Unscaled Zero Point Vibrational Energy (zpe) 1185.0 cm-1
Scaled (by 0.9495) Zero Point Vibrational Energy (zpe) 1125.2 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/cc-pVTZ
B
0.17186

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.877
N2 0.000 0.000 -0.690
Na3 0.000 0.000 1.463

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.18683.3396
N21.18682.1529
Na33.33962.1529

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