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

using model chemistry: HF/LANL2DZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at HF/LANL2DZ
 hartrees
Energy at 0K-131.851396
Energy at 298.15K-131.854012
Nuclear repulsion energy60.056572
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 HF/LANL2DZ
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 3236 2912 42.65      
2 A1 2391 2152 247.78      
3 A1 1610 1449 3.59      
4 A1 1004 904 39.23      
5 E 3331 2998 26.37      
5 E 3331 2998 26.37      
6 E 1649 1484 15.54      
6 E 1649 1484 15.54      
7 E 1278 1150 1.00      
7 E 1278 1150 1.00      
8 E 359 323 5.24      
8 E 359 323 5.24      

Unscaled Zero Point Vibrational Energy (zpe) 10737.6 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 9662.8 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 HF/LANL2DZ
ABC
5.39476 0.33443 0.33443

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.113
N2 0.000 0.000 0.316
C3 0.000 0.000 1.484
H4 0.000 1.017 -1.480
H5 0.880 -0.508 -1.480
H6 -0.880 -0.508 -1.480

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6
C11.42932.59721.08061.08061.0806
N21.42931.16792.06352.06352.0635
C32.59721.16793.13313.13313.1331
H41.08062.06353.13311.76081.7608
H51.08062.06353.13311.76081.7608
H61.08062.06353.13311.76081.7608

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 109.818
N2 C1 H5 109.818 N2 C1 H6 109.818
H4 C1 H5 109.123 H4 C1 H6 109.123
H5 C1 H6 109.123
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.395      
2 N -0.208      
3 C -0.064      
4 H 0.222      
5 H 0.222      
6 H 0.222      


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 -3.684 3.684
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.908 0.000 0.000
y 0.000 -17.908 0.000
z 0.000 0.000 -21.856
Traceless
 xyz
x 1.974 0.000 0.000
y 0.000 1.974 0.000
z 0.000 0.000 -3.948
Polar
3z2-r2-7.896
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 2.671 0.000 0.000
y 0.000 2.671 0.000
z 0.000 0.000 4.840


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