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

using model chemistry: QCISD/6-31G**

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 QCISD/6-31G**
 hartrees
Energy at 0K-254.455698
Energy at 298.15K-254.455049
HF Energy-254.160846
Nuclear repulsion energy46.107185
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/6-31G**
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 2197 2068 2.46      
2 Σ 360 339 55.97      
3 Π 112 106 17.48      
3 Π 112 106 17.48      

Unscaled Zero Point Vibrational Energy (zpe) 1390.4 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 1308.9 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/6-31G**
B
0.15117

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.693
N2 0.000 0.000 -1.873
Na3 0.000 0.000 1.570

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.17962.2635
N21.17963.4430
Na32.26353.4430

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 QCISD/6-31G**
 hartrees
Energy at 0K-254.462620
Energy at 298.15K-254.462375
HF Energy-254.168511
Nuclear repulsion energy51.258796
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/6-31G**
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' 2099 1976 21.09      
2 A' 384 362 59.81      
3 A' 185 174 4.57      

Unscaled Zero Point Vibrational Energy (zpe) 1333.8 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 1255.6 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/6-31G**
ABC
1.86783 0.27273 0.23798

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.098 0.648 0.000
N2 0.000 1.111 0.000
Na3 -0.599 -1.060 0.000

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.19102.4077
N21.19102.2521
Na32.40772.2521

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 82.572 C1 Na3 N2 29.375
N2 C1 Na3 68.052
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (C*V)

Jump to S1C1 S1C2
Energy calculated at QCISD/6-31G**
 hartrees
Energy at 0K-254.454810
Energy at 298.15K 
HF Energy-254.165490
Nuclear repulsion energy48.341316
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/6-31G**
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 2134 2009 84.29      
2 Σ 411 387 66.02      
3 Π 62i 58i 8.32      
3 Π 62i 58i 8.32      

Unscaled Zero Point Vibrational Energy (zpe) 1211.0 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 1140.0 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/6-31G**
B
0.17432

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.868
N2 0.000 0.000 -0.679
Na3 0.000 0.000 1.451

Atom - Atom Distances (Å)
  C1 N2 Na3
C11.18913.3193
N21.18912.1301
Na33.31932.1301

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