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

using model chemistry: B3LYP/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 B3LYP/TZVP
 hartrees
Energy at 0K-132.766856
Energy at 298.15K-132.769252
HF Energy-132.766856
Nuclear repulsion energy60.132968
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 B3LYP/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 3052 2946 17.21      
2 A1 2248 2171 133.91      
3 A1 1459 1409 3.51      
4 A1 951 918 14.61      
5 E 3123 3015 6.91      
5 E 3123 3015 6.91      
6 E 1495 1443 11.32      
6 E 1495 1443 11.32      
7 E 1150 1110 0.09      
7 E 1150 1110 0.09      
8 E 279 269 1.05      
8 E 279 269 1.05      

Unscaled Zero Point Vibrational Energy (zpe) 9901.6 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 9559.0 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 B3LYP/TZVP
ABC
5.29898 0.33675 0.33675

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/TZVP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.107
N2 0.000 0.000 0.313
C3 0.000 0.000 1.480
H4 0.000 1.026 -1.476
H5 0.888 -0.513 -1.476
H6 -0.888 -0.513 -1.476

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6
C11.42042.58671.09011.09011.0901
N21.42041.16632.06252.06252.0625
C32.58671.16633.12863.12863.1286
H41.09012.06253.12861.77671.7767
H51.09012.06253.12861.77671.7767
H61.09012.06253.12861.77671.7767

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 109.784
N2 C1 H5 109.784 N2 C1 H6 109.784
H4 C1 H5 109.157 H4 C1 H6 109.157
H5 C1 H6 109.157
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.296      
2 N -0.032      
3 C -0.152      
4 H 0.160      
5 H 0.160      
6 H 0.160      


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 -3.911 3.911
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.988 0.000 0.000
y 0.000 -17.988 0.000
z 0.000 0.000 -21.778
Traceless
 xyz
x 1.895 0.000 0.000
y 0.000 1.895 0.000
z 0.000 0.000 -3.790
Polar
3z2-r2-7.580
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 3.345 0.000 0.000
y 0.000 3.345 0.000
z 0.000 0.000 5.799


<r2> (average value of r2) Å2
<r2> 42.893
(<r2>)1/2 6.549