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

using model chemistry: LSDA/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 LSDA/6-311G*
 hartrees
Energy at 0K-131.990533
Energy at 298.15K-131.992948
Nuclear repulsion energy60.260728
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 LSDA/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 2978 2929 10.68      
2 A1 2212 2176 87.57      
3 A1 1399 1376 0.10      
4 A1 1001 985 5.42      
5 E 3058 3008 2.42      
5 E 3058 3008 2.42      
6 E 1436 1412 16.16      
6 E 1436 1412 16.16      
7 E 1101 1083 1.08      
7 E 1101 1083 1.08      
8 E 293 288 0.58      
8 E 293 288 0.58      

Unscaled Zero Point Vibrational Energy (zpe) 9682.3 cm-1
Scaled (by 0.9837) Zero Point Vibrational Energy (zpe) 9524.4 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 LSDA/6-311G*
ABC
5.23217 0.34039 0.34039

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.093
N2 0.000 0.000 0.304
C3 0.000 0.000 1.477
H4 0.000 1.032 -1.476
H5 0.894 -0.516 -1.476
H6 -0.894 -0.516 -1.476

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6
C11.39722.56991.10081.10081.1008
N21.39721.17262.05742.05742.0574
C32.56991.17263.12753.12753.1275
H41.10082.05743.12751.78801.7880
H51.10082.05743.12751.78801.7880
H61.10082.05743.12751.78801.7880

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 110.326
N2 C1 H5 110.326 N2 C1 H6 110.326
H4 C1 H5 108.603 H4 C1 H6 108.603
H5 C1 H6 108.603
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.622      
2 N -0.117      
3 C -0.110      
4 H 0.283      
5 H 0.283      
6 H 0.283      


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 -3.988 3.988
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.801 0.000 0.000
y 0.000 -17.801 0.000
z 0.000 0.000 -21.436
Traceless
 xyz
x 1.817 0.000 0.000
y 0.000 1.817 0.000
z 0.000 0.000 -3.635
Polar
3z2-r2-7.270
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 3.104 0.000 0.000
y 0.000 3.104 0.000
z 0.000 0.000 5.669


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