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

using model chemistry: M06-2X/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at M06-2X/6-31G(2df,p)
 hartrees
Energy at 0K-132.667513
Energy at 298.15K-132.669966
HF Energy-132.667513
Nuclear repulsion energy60.172857
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 M06-2X/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 A1 3078 2931 13.43      
2 A1 2285 2176 141.54      
3 A1 1457 1387 4.99      
4 A1 991 944 12.95      
5 E 3165 3014 3.80      
5 E 3164 3014 3.89      
6 E 1493 1422 8.69      
6 E 1493 1422 8.60      
7 E 1152 1097 0.00      
7 E 1152 1097 0.00      
8 E 300 286 0.27      
8 E 300 286 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 10014.9 cm-1
Scaled (by 0.9524) Zero Point Vibrational Energy (zpe) 9538.2 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 M06-2X/6-31G(2df,p)
ABC
5.28903 0.33753 0.33753

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G(2df,p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.106
N2 0.000 0.000 0.312
C3 0.000 0.000 1.478
H4 0.000 1.027 -1.473
H5 0.890 -0.514 -1.473
H6 -0.890 -0.514 -1.473

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6
C11.41802.58351.09081.09081.0908
N21.41801.16562.05932.05932.0593
C32.58351.16563.12403.12403.1240
H41.09082.05933.12401.77931.7793
H51.09082.05933.12401.77931.7793
H61.09082.05933.12401.77931.7793

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 109.648
N2 C1 H5 109.648 N2 C1 H6 109.648
H4 C1 H5 109.294 H4 C1 H6 109.294
H5 C1 H6 109.294
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.309      
2 N -0.013      
3 C -0.216      
4 H 0.179      
5 H 0.179      
6 H 0.179      


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 -3.688 3.688
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.470 0.000 0.000
y 0.000 -17.470 0.000
z 0.000 0.000 -20.797
Traceless
 xyz
x 1.664 0.000 0.000
y 0.000 1.664 0.000
z 0.000 0.000 -3.327
Polar
3z2-r2-6.654
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 3.029 0.000 0.000
y 0.000 3.023 0.004
z 0.000 0.004 5.318


<r2> (average value of r2) Å2
<r2> 42.411
(<r2>)1/2 6.512