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

using model chemistry: B2PLYP/6-31G(2df,p)

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 B2PLYP/6-31G(2df,p)
 hartrees
Energy at 0K-93.330953
Energy at 298.15K-93.330835
HF Energy-93.225097
Nuclear repulsion energy24.128854
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 B2PLYP/6-31G(2df,p)
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 3885 3710 240.31      
2 Σ 2063 1970 41.39      
3 Π 532 508 128.78      
3 Π 532 508 128.78      

Unscaled Zero Point Vibrational Energy (zpe) 3506.0 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 3348.3 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 B2PLYP/6-31G(2df,p)
B
1.50674

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G(2df,p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -0.741
N2 0.000 0.000 0.432
H3 0.000 0.000 1.425

Atom - Atom Distances (Å)
  C1 N2 H3
C11.17322.1665
N21.17320.9933
H32.16650.9933

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 B2PLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.174      
2 N -0.180      
3 H 0.354      


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 3.052 3.052
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -11.596 0.000 0.000
y 0.000 -11.596 0.000
z 0.000 0.000 -10.076
Traceless
 xyz
x -0.760 0.000 0.000
y 0.000 -0.760 0.000
z 0.000 0.000 1.520
Polar
3z2-r23.040
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 1.576 0.000 0.000
y 0.000 1.576 0.000
z 0.000 0.000 2.986


<r2> (average value of r2) Å2
<r2> 13.566
(<r2>)1/2 3.683