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

using model chemistry: wB97X-D/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at wB97X-D/TZVP
 hartrees
Energy at 0K-132.714133
Energy at 298.15K-132.716551
HF Energy-132.714133
Nuclear repulsion energy60.250326
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 wB97X-D/TZVP
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 3081 2943 16.91      
2 A1 2288 2185 150.41      
3 A1 1464 1398 2.71      
4 A1 978 934 13.85      
5 E 3166 3023 5.76      
5 E 3166 3023 5.74      
6 E 1503 1435 12.46      
6 E 1503 1435 12.42      
7 E 1156 1104 0.07      
7 E 1156 1104 0.08      
8 E 285 272 1.07      
8 E 284 272 1.07      

Unscaled Zero Point Vibrational Energy (zpe) 10014.1 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 9563.4 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 wB97X-D/TZVP
ABC
5.29742 0.33832 0.33832

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/TZVP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.105
N2 0.000 0.000 0.313
C3 0.000 0.000 1.476
H4 0.000 1.026 -1.470
H5 0.889 -0.513 -1.470
H6 -0.889 -0.513 -1.470

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6
C11.41782.58081.08931.08931.0893
N21.41781.16312.05682.05682.0568
C32.58081.16313.11913.11913.1191
H41.08932.05683.11911.77781.7778
H51.08932.05683.11911.77781.7778
H61.08932.05683.11911.77781.7778

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 109.556
N2 C1 H5 109.556 N2 C1 H6 109.556
H4 C1 H5 109.386 H4 C1 H6 109.386
H5 C1 H6 109.386
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.310      
2 N -0.036      
3 C -0.140      
4 H 0.162      
5 H 0.162      
6 H 0.162      


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 -3.910 3.910
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.796 0.000 0.000
y 0.000 -17.796 0.000
z 0.000 0.000 -21.552
Traceless
 xyz
x 1.878 0.000 0.000
y 0.000 1.878 0.000
z 0.000 0.000 -3.756
Polar
3z2-r2-7.513
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 3.308 0.000 0.000
y 0.000 3.308 0.000
z 0.000 0.000 5.675


<r2> (average value of r2) Å2
<r2> 42.628
(<r2>)1/2 6.529