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All results from a given calculation for HCN (Hydrogen cyanide)

using model chemistry: CID/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at CID/daug-cc-pVTZ
 hartrees
Energy at 0K-93.234574
Energy at 298.15K-93.234712
HF Energy-92.910576
Nuclear repulsion energy24.117021
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/daug-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 3517 3517 72.57      
2 Σ 2257 2257 2.43      
3 Π 780 780 34.47      
3 Π 780 780 34.47      

Unscaled Zero Point Vibrational Energy (zpe) 3667.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3667.6 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 CID/daug-cc-pVTZ
B
1.50912

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.496
H2 0.000 0.000 -1.557
N3 0.000 0.000 0.647

Atom - Atom Distances (Å)
  C1 H2 N3
C11.06141.1430
H21.06142.2044
N31.14302.2044

picture of Hydrogen cyanide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 N3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability