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

using model chemistry: B3LYP/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-132.723600
Energy at 298.15K-132.725967
Nuclear repulsion energy59.741058
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/cc-pVDZ
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 3043 2952 18.70      
2 A1 2239 2172 116.52      
3 A1 1433 1390 7.44      
4 A1 967 938 11.94      
5 E 3125 3031 6.28      
5 E 3125 3031 6.28      
6 E 1459 1416 9.96      
6 E 1459 1416 9.96      
7 E 1129 1095 0.02      
7 E 1129 1095 0.02      
8 E 270 262 0.19      
8 E 270 262 0.19      

Unscaled Zero Point Vibrational Energy (zpe) 9823.3 cm-1
Scaled (by 0.97) Zero Point Vibrational Energy (zpe) 9528.6 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/cc-pVDZ
ABC
5.21553 0.33309 0.33309

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

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 0.311
C3 0.000 0.000 1.490
H4 0.000 1.034 -1.487
H5 0.895 -0.517 -1.487
H6 -0.895 -0.517 -1.487

Atom - Atom Distances (Å)
  C1 N2 C3 H4 H5 H6
C11.42142.60011.10051.10051.1005
N21.42141.17872.07432.07432.0743
C32.60011.17873.15133.15133.1513
H41.10052.07433.15131.79081.7908
H51.10052.07433.15131.79081.7908
H61.10052.07433.15131.79081.7908

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 110.023
N2 C1 H5 110.023 N2 C1 H6 110.023
H4 C1 H5 108.914 H4 C1 H6 108.914
H5 C1 H6 108.914
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.075      
2 N -0.077      
3 C -0.192      
4 H 0.064      
5 H 0.064      
6 H 0.064      


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 -3.777 3.777
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.526 0.000 0.000
y 0.000 -17.526 0.000
z 0.000 0.000 -21.299
Traceless
 xyz
x 1.887 0.000 0.000
y 0.000 1.887 0.000
z 0.000 0.000 -3.773
Polar
3z2-r2-7.547
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 2.921 0.000 0.000
y 0.000 2.921 0.000
z 0.000 0.000 5.509


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