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All results from a given calculation for CH3NC (methyl isocyanide)

using model chemistry: HF/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at HF/6-311G*
 hartrees
Energy at 0K-131.923773
Energy at 298.15K-131.926261
Nuclear repulsion energy60.585400
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 HF/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 A1 3225 2917 29.18      
2 A1 2449 2214 239.94      
3 A1 1593 1440 13.57      
4 A1 1014 917 35.58      
5 E 3304 2988 19.33      
5 E 3304 2988 19.33      
6 E 1630 1474 9.04      
6 E 1630 1474 9.04      
7 E 1262 1141 1.15      
7 E 1262 1141 1.15      
8 E 301 272 1.72      
8 E 301 272 1.72      

Unscaled Zero Point Vibrational Energy (zpe) 10636.0 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 9619.2 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 HF/6-311G*
ABC
5.37806 0.34083 0.34083

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.105
N2 0.000 0.000 0.318
C3 0.000 0.000 1.466
H4 0.000 1.018 -1.465
H5 0.882 -0.509 -1.465
H6 -0.882 -0.509 -1.465

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6
C11.42302.57111.08021.08021.0802
N21.42301.14812.05382.05382.0538
C32.57111.14813.10353.10353.1035
H41.08022.05383.10351.76361.7636
H51.08022.05383.10351.76361.7636
H61.08022.05383.10351.76361.7636

picture of methyl isocyanide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 180.000 N2 C1 H4 109.506
N2 C1 H5 109.506 N2 C1 H6 109.506
H4 C1 H5 109.436 H4 C1 H6 109.436
H5 C1 H6 109.436
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.458      
2 N -0.334      
3 C 0.043      
4 H 0.250      
5 H 0.250      
6 H 0.250      


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 -3.726 3.726
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.820 0.000 0.000
y 0.000 -17.820 0.000
z 0.000 0.000 -21.164
Traceless
 xyz
x 1.672 0.000 0.000
y 0.000 1.672 0.000
z 0.000 0.000 -3.344
Polar
3z2-r2-6.689
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 2.874 0.000 0.000
y 0.000 2.874 0.000
z 0.000 0.000 4.922


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