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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: M06-2X/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at M06-2X/6-311G*
 hartrees
Energy at 0K-132.727271
Energy at 298.15K-132.729899
HF Energy-132.727271
Nuclear repulsion energy58.653312
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 M06-2X/6-311G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3100 3100 1.99 135.58 0.00 0.00
2 A1 2436 2436 8.48 50.20 0.27 0.42
3 A1 1426 1426 4.71 6.88 0.70 0.82
4 A1 945 945 2.83 3.78 0.16 0.28
5 E 3179 3179 0.69 61.79 0.75 0.86
5 E 3179 3179 0.70 61.72 0.75 0.86
6 E 1499 1499 12.61 10.89 0.75 0.86
6 E 1499 1499 12.63 10.92 0.75 0.86
7 E 1075 1075 3.24 0.04 0.75 0.86
7 E 1075 1075 3.25 0.03 0.75 0.86
8 E 394 394 0.27 3.88 0.75 0.86
8 E 394 394 0.26 3.93 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10100.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10100.1 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 M06-2X/6-311G*
ABC
5.31947 0.30912 0.30912

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.177
C2 0.000 0.000 0.283
N3 0.000 0.000 1.430
H4 0.000 1.024 -1.549
H5 0.887 -0.512 -1.549
H6 -0.887 -0.512 -1.549

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.45922.60671.08961.08961.0896
C21.45921.14752.09872.09872.0987
N32.60671.14753.15053.15053.1505
H41.08962.09873.15051.77331.7733
H51.08962.09873.15051.77331.7733
H61.08962.09873.15051.77331.7733

picture of Acetonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 180.000 C2 C1 H4 110.008
C2 C1 H5 110.008 C2 C1 H6 110.008
H4 C1 H5 108.929 H4 C1 H6 108.929
H5 C1 H6 108.929
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.703      
2 C 0.141      
3 N -0.277      
4 H 0.280      
5 H 0.280      
6 H 0.280      


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 -3.878 3.878
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.574 0.000 0.000
y 0.000 -17.574 0.000
z 0.000 0.000 -20.610
Traceless
 xyz
x 1.518 0.000 0.000
y 0.000 1.518 0.000
z 0.000 0.000 -3.036
Polar
3z2-r2-6.072
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 2.735 0.000 0.000
y 0.000 2.738 -0.002
z 0.000 -0.002 5.136


<r2> (average value of r2) Å2
<r2> 45.057
(<r2>)1/2 6.712