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

using model chemistry: B3LYPultrafine/aug-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 B3LYPultrafine/aug-cc-pVTZ
 hartrees
Energy at 0K-93.440459
Energy at 298.15K-93.440249
HF Energy-93.440459
Nuclear repulsion energy24.272746
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 B3LYPultrafine/aug-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 3799 3675 254.34      
2 Σ 2103 2035 72.53      
3 Π 469 454 130.43      
3 Π 469 454 130.43      

Unscaled Zero Point Vibrational Energy (zpe) 3419.8 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 3308.6 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 B3LYPultrafine/aug-cc-pVTZ
B
1.52628

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.736
N2 0.000 0.000 0.427
H3 0.000 0.000 1.424

Atom - Atom Distances (Å)
  C1 N2 H3
C11.16322.1602
N21.16320.9970
H32.16020.9970

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 B3LYPultrafine/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.325      
2 N 0.088      
3 H 0.237      


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 3.062 3.062
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.142 0.000 0.000
y 0.000 -12.142 0.000
z 0.000 0.000 -10.547
Traceless
 xyz
x -0.798 0.000 0.000
y 0.000 -0.798 0.000
z 0.000 0.000 1.595
Polar
3z2-r23.191
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 2.347 0.000 0.000
y 0.000 2.347 0.000
z 0.000 0.000 3.510


<r2> (average value of r2) Å2
<r2> 13.818
(<r2>)1/2 3.717