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

using model chemistry: QCISD(T)=FULL/cc-pCVTZ

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

Conformer 1 (C*V)

Jump to S1C2
Energy calculated at QCISD(T)=FULL/cc-pCVTZ
 hartrees
Energy at 0K-254.973775
Energy at 298.15K-254.973152
HF Energy-254.213676
Nuclear repulsion energy46.427816
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 QCISD(T)=FULL/cc-pCVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σ 2143 2143        
2 Σ 363 363        
3 Π 116 116        
3 Π 116 116        

Unscaled Zero Point Vibrational Energy (zpe) 1368.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1368.6 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 QCISD(T)=FULL/cc-pCVTZ
B
0.15333

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/cc-pCVTZ

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 -1.860
Na3 0.000 0.000 1.559

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.17162.2472
N21.17163.4188
Na32.24723.4188

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
Energy calculated at QCISD(T)=FULL/cc-pCVTZ
 hartrees
Energy at 0K-254.978987
Energy at 298.15K-254.978750
HF Energy-254.220713
Nuclear repulsion energy51.699869
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 QCISD(T)=FULL/cc-pCVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 2051 2051        
2 A' 377 377        
3 A' 190 190        

Unscaled Zero Point Vibrational Energy (zpe) 1309.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1309.2 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 QCISD(T)=FULL/cc-pCVTZ
ABC
1.89386 0.27802 0.24243

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/cc-pCVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.087 0.639 0.000
N2 0.000 1.103 0.000
Na3 -0.593 -1.050 0.000

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.18222.3828
N21.18222.2332
Na32.38282.2332

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 82.307 C1 Na3 N2 29.449
N2 C1 Na3 68.244
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability