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

using model chemistry: B97D3/6-311G*

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 B97D3/6-311G*
 hartrees
Energy at 0K-93.386435
Energy at 298.15K-93.386538
HF Energy-93.386435
Nuclear repulsion energy23.806887
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 B97D3/6-311G*
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 3387 3387 37.06 29.90 0.27 0.43
2 Σ 2125 2125 0.25 39.89 0.22 0.36
3 Π 736 736 39.35 0.41 0.75 0.86
3 Π 736 736 39.35 0.41 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 3492.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 3492.1 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 B97D3/6-311G*
B
1.47053

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.503
H2 0.000 0.000 -1.575
N3 0.000 0.000 0.656

Atom - Atom Distances (Å)
  C1 H2 N3
C11.07281.1584
H21.07282.2311
N31.15842.2311

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 B97D3/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.063      
2 H 0.286      
3 N -0.223      


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 -2.889 2.889
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.572 0.000 0.000
y 0.000 -11.572 0.000
z 0.000 0.000 -9.661
Traceless
 xyz
x -0.956 0.000 0.000
y 0.000 -0.956 0.000
z 0.000 0.000 1.911
Polar
3z2-r23.823
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.327 0.000 0.000
y 0.000 1.327 0.000
z 0.000 0.000 3.097


<r2> (average value of r2) Å2
<r2> 13.837
(<r2>)1/2 3.720