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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-131.994445
Energy at 298.15K-131.996861
Nuclear repulsion energy60.254623
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 2975 2939 8.93      
2 A1 2212 2185 86.35      
3 A1 1382 1365 0.02      
4 A1 998 986 4.89      
5 E 3056 3018 1.26      
5 E 3056 3018 1.26      
6 E 1415 1398 15.81      
6 E 1415 1398 15.81      
7 E 1088 1075 0.99      
7 E 1088 1075 0.99      
8 E 293 289 0.56      
8 E 293 289 0.56      

Unscaled Zero Point Vibrational Energy (zpe) 9634.9 cm-1
Scaled (by 0.9877) Zero Point Vibrational Energy (zpe) 9516.3 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
5.22969 0.34031 0.34031

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 -1.094
N2 0.000 0.000 0.304
C3 0.000 0.000 1.477
H4 0.000 1.033 -1.475
H5 0.894 -0.516 -1.475
H6 -0.894 -0.516 -1.475

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6
C11.39782.57041.10081.10081.1008
N21.39781.17262.05722.05722.0572
C32.57041.17263.12733.12733.1273
H41.10082.05723.12731.78841.7884
H51.10082.05723.12731.78841.7884
H61.10082.05723.12731.78841.7884

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 110.279
N2 C1 H5 110.279 N2 C1 H6 110.279
H4 C1 H5 108.651 H4 C1 H6 108.651
H5 C1 H6 108.651
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 -0.302      
2 N -0.152      
3 C -0.114      
4 H 0.190      
5 H 0.190      
6 H 0.190      


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 -3.993 3.993
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.779 0.000 0.000
y 0.000 -17.779 0.000
z 0.000 0.000 -21.412
Traceless
 xyz
x 1.816 0.000 0.000
y 0.000 1.816 0.000
z 0.000 0.000 -3.632
Polar
3z2-r2-7.265
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 3.136 0.000 0.000
y 0.000 3.136 0.000
z 0.000 0.000 5.736


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