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

using model chemistry: B97D3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-132.627940
Energy at 298.15K-132.630274
HF Energy-132.627940
Nuclear repulsion energy 
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 B97D3/6-31G*
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 3003 2944 23.38      
2 A1 2169 2127 102.99      
3 A1 1448 1419 5.58      
4 A1 942 923 10.66      
5 E 3081 3020 12.56      
5 E 3081 3020 12.56      
6 E 1487 1458 8.39      
6 E 1487 1458 8.39      
7 E 1135 1113 0.00      
7 E 1135 1113 0.00      
8 E 263 258 0.87      
8 E 263 258 0.87      

Unscaled Zero Point Vibrational Energy (zpe) 9745.9 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 9554.9 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 B97D3/6-31G*
ABC
5.22617 0.33115 0.33115

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.113
N2 0.000 0.000 0.310
C3 0.000 0.000 1.496
H4 0.000 1.033 -1.488
H5 0.895 -0.516 -1.488
H6 -0.895 -0.516 -1.488

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6
C11.42292.60951.09871.09871.0987
N21.42291.18672.07302.07302.0730
C32.60951.18673.15773.15773.1577
H41.09872.07303.15771.78901.7890
H51.09872.07303.15771.78901.7890
H61.09872.07303.15771.78901.7890

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 109.799
N2 C1 H5 109.799 N2 C1 H6 109.799
H4 C1 H5 109.141 H4 C1 H6 109.141
H5 C1 H6 109.141
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.349      
2 N -0.183      
3 C -0.066      
4 H 0.200      
5 H 0.200      
6 H 0.200      


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 -3.627 3.627
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.375 0.000 0.000
y 0.000 -17.375 0.000
z 0.000 0.000 -20.741
Traceless
 xyz
x 1.683 0.000 0.000
y 0.000 1.683 0.000
z 0.000 0.000 -3.366
Polar
3z2-r2-6.732
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 2.822 0.000 0.000
y 0.000 2.822 -0.000
z 0.000 -0.000 5.477


<r2> (average value of r2) Å2
<r2> 42.933
(<r2>)1/2 6.552