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

using model chemistry: M06-2X/cc-pCVTZ

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 M06-2X/cc-pCVTZ
 hartrees
Energy at 0K-93.425152
Energy at 298.15K-93.425304
HF Energy-93.425152
Nuclear repulsion energy24.120327
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 M06-2X/cc-pCVTZ
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 3446 3446 71.24      
2 Σ 2250 2250 2.84      
3 Π 792 792 33.88      
3 Π 792 792 33.88      

Unscaled Zero Point Vibrational Energy (zpe) 3640.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3640.6 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 M06-2X/cc-pCVTZ
B
1.50957

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/cc-pCVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.495
H2 0.000 0.000 -1.561
N3 0.000 0.000 0.647

Atom - Atom Distances (Å)
  C1 H2 N3
C11.06661.1418
H21.06662.2083
N31.14182.2083

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
Charges from optimized geometry at M06-2X/cc-pCVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.036      
2 H 0.123      
3 N -0.087      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -3.038 3.038
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.636 0.000 0.000
y 0.000 1.636 0.000
z 0.000 0.000 3.151


<r2> (average value of r2) Å2
<r2> 13.720
(<r2>)1/2 3.704