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

using model chemistry: B97D3/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B97D3/aug-cc-pVTZ
 hartrees
Energy at 0K-132.680836
Energy at 298.15K-132.683170
HF Energy-132.680836
Nuclear repulsion energy59.912036
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 B97D3/aug-cc-pVTZ
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 2992 2947 20.66      
2 A1 2160 2127 125.31      
3 A1 1419 1398 4.54      
4 A1 926 912 9.57      
5 E 3065 3018 7.28      
5 E 3065 3018 7.28      
6 E 1460 1437 10.10      
6 E 1460 1437 10.10      
7 E 1120 1102 0.09      
7 E 1120 1102 0.09      
8 E 260 256 0.32      
8 E 260 256 0.32      

Unscaled Zero Point Vibrational Energy (zpe) 9653.2 cm-1
Scaled (by 0.9847) Zero Point Vibrational Energy (zpe) 9505.5 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 B97D3/aug-cc-pVTZ
ABC
5.26270 0.33453 0.33453

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/aug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.110
N2 0.000 0.000 0.312
C3 0.000 0.000 1.486
H4 0.000 1.029 -1.480
H5 0.891 -0.515 -1.480
H6 -0.891 -0.515 -1.480

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6
C11.42182.59591.09371.09371.0937
N21.42181.17422.06612.06612.0661
C32.59591.17423.13923.13923.1392
H41.09372.06613.13921.78281.7828
H51.09372.06613.13921.78281.7828
H61.09372.06613.13921.78281.7828

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 109.757
N2 C1 H5 109.757 N2 C1 H6 109.757
H4 C1 H5 109.184 H4 C1 H6 109.184
H5 C1 H6 109.184
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.117      
2 N 0.161      
3 C -0.691      
4 H 0.215      
5 H 0.215      
6 H 0.215      


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 -3.882 3.882
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.953 0.000 0.000
y 0.000 -17.953 0.000
z 0.000 0.000 -21.792
Traceless
 xyz
x 1.920 0.000 0.000
y 0.000 1.920 0.000
z 0.000 0.000 -3.839
Polar
3z2-r2-7.678
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 3.966 0.000 0.000
y 0.000 3.967 -0.000
z 0.000 -0.000 6.558


<r2> (average value of r2) Å2
<r2> 43.080
(<r2>)1/2 6.564