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

using model chemistry: B97D3/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B97D3/6-311+G(3df,2p)
 hartrees
Energy at 0K-132.677192
Energy at 298.15K-132.679521
HF Energy-132.677192
Nuclear repulsion energy59.925679
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 B97D3/6-311+G(3df,2p)
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 2989 2950 21.35      
2 A1 2161 2133 124.24      
3 A1 1422 1404 4.45      
4 A1 927 915 9.43      
5 E 3062 3022 7.65      
5 E 3062 3022 7.65      
6 E 1461 1442 10.49      
6 E 1461 1442 10.49      
7 E 1122 1107 0.09      
7 E 1122 1107 0.09      
8 E 259 256 0.38      
8 E 259 255 0.37      

Unscaled Zero Point Vibrational Energy (zpe) 9653.2 cm-1
Scaled (by 0.987) Zero Point Vibrational Energy (zpe) 9527.7 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 B97D3/6-311+G(3df,2p)
ABC
5.26567 0.33471 0.33471

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311+G(3df,2p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.109
N2 0.000 0.000 0.312
C3 0.000 0.000 1.486
H4 0.000 1.029 -1.480
H5 0.891 -0.515 -1.480
H6 -0.891 -0.515 -1.480

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6
C11.42112.59511.09361.09361.0936
N21.42111.17402.06592.06592.0659
C32.59511.17403.13893.13893.1389
H41.09362.06593.13891.78231.7823
H51.09362.06593.13891.78231.7823
H61.09362.06593.13891.78231.7823

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 109.699
N2 C1 H5 109.699 N2 C1 H6 109.699
H4 C1 H5 109.242 H4 C1 H6 109.242
H5 C1 H6 109.242
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.153      
2 N -0.525      
3 C -0.009      
4 H 0.127      
5 H 0.127      
6 H 0.127      


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 -3.895 3.895
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.962 0.000 0.000
y 0.000 -17.962 0.000
z 0.000 0.000 -21.811
Traceless
 xyz
x 1.924 0.000 0.000
y 0.000 1.924 0.000
z 0.000 0.000 -3.849
Polar
3z2-r2-7.697
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 3.895 0.000 0.000
y 0.000 3.895 -0.000
z 0.000 -0.000 6.525


<r2> (average value of r2) Å2
<r2> 43.074
(<r2>)1/2 6.563