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

using model chemistry: CID/6-311G*

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/6-311G*
 hartrees
Energy at 0K-691.923955
Energy at 298.15K-691.923311
HF Energy-691.499968
Nuclear repulsion energy60.805055
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/6-311G*
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 2286 2124 0.94      
2 Σ 284 264 65.82      
3 Π 71 66 11.27      
3 Π 71 66 11.27      

Unscaled Zero Point Vibrational Energy (zpe) 1355.9 cm-1
Scaled (by 0.9291) Zero Point Vibrational Energy (zpe) 1259.8 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/6-311G*
B
0.09756

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-311G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.318
C2 0.000 0.000 -1.301
N3 0.000 0.000 -2.462

Atom - Atom Distances (Å)
  K1 C2 N3
K12.61853.7794
C22.61851.1609
N33.77941.1609

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/6-311G*
 hartrees
Energy at 0K-691.927397
Energy at 298.15K 
HF Energy-691.507052
Nuclear repulsion energy64.339566
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/6-311G*
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 2228 2070 105.64      
2 Σ 321 298 81.36      
3 Π 57i 53i 2.38      
3 Π 57i 53i 2.38      

Unscaled Zero Point Vibrational Energy (zpe) 1217.1 cm-1
Scaled (by 0.9291) Zero Point Vibrational Energy (zpe) 1130.8 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/6-311G*
B
0.11345

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-311G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.216
C2 0.000 0.000 -2.407
N3 0.000 0.000 -1.238

Atom - Atom Distances (Å)
  K1 C2 N3
K13.62322.4539
C23.62321.1692
N32.45391.1692

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/6-311G*
 hartrees
Energy at 0K-691.931898
Energy at 298.15K-691.931784
HF Energy-691.508146
Nuclear repulsion energy68.526615
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/6-311G*
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' 2212 2055 24.02      
2 A' 312 290 68.13      
3 A' 166 155 7.98      

Unscaled Zero Point Vibrational Energy (zpe) 1345.2 cm-1
Scaled (by 0.9291) Zero Point Vibrational Energy (zpe) 1249.8 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/6-311G*
ABC
1.96786 0.16190 0.14959

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 1.048 0.000
C2 0.621 -1.638 0.000
N3 -0.532 -1.442 0.000

Atom - Atom Distances (Å)
  K1 C2 N3
K12.75722.5461
C22.75721.1695
N32.54611.1695

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 67.318 K1 N3 C2 87.608
C2 K1 N3 25.074
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability