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

using model chemistry: BLYP/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 BLYP/6-311G*
 hartrees
Energy at 0K-132.702345
Energy at 298.15K-132.704668
Nuclear repulsion energy59.549046
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 BLYP/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 2973 2965 20.79      
2 A1 2143 2137 107.06      
3 A1 1429 1425 3.40      
4 A1 917 915 11.22      
5 E 3038 3031 12.81      
5 E 3038 3031 12.82      
6 E 1470 1466 10.45      
6 E 1470 1466 10.45      
7 E 1123 1120 0.00      
7 E 1123 1120 0.00      
8 E 259 259 0.60      
8 E 259 259 0.60      

Unscaled Zero Point Vibrational Energy (zpe) 9621.5 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 9597.4 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 BLYP/6-311G*
ABC
5.23055 0.33015 0.33015

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.117
N2 0.000 0.000 0.315
C3 0.000 0.000 1.496
H4 0.000 1.032 -1.491
H5 0.894 -0.516 -1.491
H6 -0.894 -0.516 -1.491

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6
C11.43152.61271.09831.09831.0983
N21.43151.18132.08032.08032.0803
C32.61271.18133.16063.16063.1606
H41.09832.08033.16061.78831.7883
H51.09832.08033.16061.78831.7883
H61.09832.08033.16061.78831.7883

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 109.939
N2 C1 H5 109.939 N2 C1 H6 109.939
H4 C1 H5 109.000 H4 C1 H6 109.000
H5 C1 H6 109.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.490      
2 N -0.116      
3 C -0.110      
4 H 0.239      
5 H 0.239      
6 H 0.239      


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 -3.866 3.866
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.879 0.000 0.000
y 0.000 -17.879 0.000
z 0.000 0.000 -21.494
Traceless
 xyz
x 1.807 0.000 0.000
y 0.000 1.807 0.000
z 0.000 0.000 -3.615
Polar
3z2-r2-7.229
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 3.081 0.000 0.000
y 0.000 3.081 0.000
z 0.000 0.000 5.676


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