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All results from a given calculation for KCN (Potassium cyanide)

using model chemistry: CID/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 no C*V 1Σ
1 3 yes CS 1A'

Conformer 1 (C*V)

Jump to S1C2 S1C3
Energy calculated at CID/6-31G
 hartrees
Energy at 0K-691.584086
Energy at 298.15K-691.583574
HF Energy-691.392273
Nuclear repulsion energy59.566827
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 CID/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 2176 2035 0.03      
2 Σ 278 260 52.62      
3 Π 111 103 15.32      
3 Π 111 103 15.32      

Unscaled Zero Point Vibrational Energy (zpe) 1337.5 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 1250.8 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 CID/6-31G
B
0.09380

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.344
C2 0.000 0.000 -1.324
N3 0.000 0.000 -2.512

Atom - Atom Distances (Å)
  K1 C2 N3
K12.66733.8560
C22.66731.1887
N33.85601.1887

picture of Potassium cyanide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
K1 C2 N3 180.000 K1 N3 C2 0.000
C2 K1 N3 0.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C*V)

Jump to S1C1 S1C3
Energy calculated at CID/6-31G
 hartrees
Energy at 0K-691.585049
Energy at 298.15K-691.584395
HF Energy-691.400101
Nuclear repulsion energy62.955985
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 CID/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 2133 1994 61.18      
2 Σ 313 293 63.07      
3 Π 59 56 5.75      
3 Π 59 56 5.75      

Unscaled Zero Point Vibrational Energy (zpe) 1282.1 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 1199.0 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 CID/6-31G
B
0.10866

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.243
C2 0.000 0.000 -2.460
N3 0.000 0.000 -1.264

Atom - Atom Distances (Å)
  K1 C2 N3
K13.70262.5069
C23.70261.1957
N32.50691.1957

picture of Potassium cyanide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
K1 C2 N3 0.000 K1 N3 C2 180.000
C2 K1 N3 0.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (CS)

Jump to S1C1 S1C2
Energy calculated at CID/6-31G
 hartrees
Energy at 0K-691.585503
Energy at 298.15K-691.585261
HF Energy-691.396140
Nuclear repulsion energy66.191937
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 CID/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' 2101 1965 18.25      
2 A' 289 271 51.02      
3 A' 107 100 7.13      

Unscaled Zero Point Vibrational Energy (zpe) 1248.7 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 1167.8 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 CID/6-31G
ABC
1.90993 0.14899 0.13821

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 1.092 0.000
C2 0.630 -1.730 0.000
N3 -0.540 -1.482 0.000

Atom - Atom Distances (Å)
  K1 C2 N3
K12.89172.6299
C22.89171.1970
N32.62991.1970

picture of Potassium cyanide state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
K1 C2 N3 65.434 K1 N3 C2 90.114
C2 K1 N3 24.452
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability