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All results from a given calculation for HNC (hydrogen isocyanide)

using model chemistry: B3PW91/cc-pVDZ

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 B3PW91/cc-pVDZ
 hartrees
Energy at 0K-93.365262
Energy at 298.15K-93.365070
Nuclear repulsion energy24.017183
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 B3PW91/cc-pVDZ
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 3799 3666 235.78      
2 Σ 2108 2034 54.90      
3 Π 482 465 133.44      
3 Π 481 465 133.31      

Unscaled Zero Point Vibrational Energy (zpe) 3434.6 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 3314.4 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 B3PW91/cc-pVDZ
B
1.49371

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVDZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.745
N2 0.000 0.000 0.433
H3 0.000 0.000 1.437

Atom - Atom Distances (Å)
  C1 N2 H3
C11.17762.1817
N21.17761.0041
H32.18171.0041

picture of hydrogen isocyanide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 H3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.081      
2 N -0.058      
3 H 0.139      


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 3.039 3.039
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.583 0.000 0.000
y 0.000 -11.583 0.000
z 0.000 0.000 -10.147
Traceless
 xyz
x -0.718 0.000 0.000
y 0.000 -0.718 0.000
z 0.000 0.000 1.435
Polar
3z2-r22.871
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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000