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

using model chemistry: LSDA/6-31G**

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/6-31G**
 hartrees
Energy at 0K-131.959396
Energy at 298.15K-131.961825
Nuclear repulsion energy60.038367
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/6-31G**
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 2986 2930 10.90      
2 A1 2219 2178 80.12      
3 A1 1396 1370 0.12      
4 A1 1007 989 4.97      
5 E 3071 3013 1.96      
5 E 3071 3013 1.96      
6 E 1429 1402 12.81      
6 E 1429 1402 12.81      
7 E 1094 1074 0.98      
7 E 1094 1074 0.98      
8 E 300 294 0.57      
8 E 300 294 0.57      

Unscaled Zero Point Vibrational Energy (zpe) 9697.5 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 9516.2 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 LSDA/6-31G**
ABC
5.22692 0.33791 0.33791

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.095
N2 0.000 0.000 0.302
C3 0.000 0.000 1.484
H4 0.000 1.033 -1.482
H5 0.894 -0.516 -1.482
H6 -0.894 -0.516 -1.482

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6
C11.39742.57951.10291.10291.1029
N21.39741.18212.06162.06162.0616
C32.57951.18213.14103.14103.1410
H41.10292.06163.14101.78891.7889
H51.10292.06163.14101.78891.7889
H61.10292.06163.14101.78891.7889

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 110.532
N2 C1 H5 110.532 N2 C1 H6 110.532
H4 C1 H5 108.390 H4 C1 H6 108.390
H5 C1 H6 108.390
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.341      
2 N -0.136      
3 C -0.103      
4 H 0.193      
5 H 0.193      
6 H 0.193      


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 -3.762 3.762
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.403 0.000 0.000
y 0.000 -17.403 0.000
z 0.000 0.000 -20.914
Traceless
 xyz
x 1.755 0.000 0.000
y 0.000 1.755 0.000
z 0.000 0.000 -3.511
Polar
3z2-r2-7.022
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 2.880 0.000 0.000
y 0.000 2.880 0.000
z 0.000 0.000 5.552


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