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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-132.730552
Energy at 298.15K-132.733181
HF Energy-132.730552
Nuclear repulsion energy58.664532
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 3090 3090 1.24 145.83 0.00 0.00
2 A1 2436 2436 9.15 50.37 0.27 0.42
3 A1 1412 1412 4.04 5.74 0.70 0.82
4 A1 945 945 2.38 3.83 0.16 0.27
5 E 3172 3172 0.15 60.64 0.75 0.86
5 E 3172 3172 0.16 60.62 0.75 0.86
6 E 1482 1482 12.59 9.79 0.75 0.86
6 E 1482 1482 12.60 9.73 0.75 0.86
7 E 1065 1065 3.11 0.01 0.75 0.86
7 E 1065 1065 3.12 0.01 0.75 0.86
8 E 393 393 0.24 3.74 0.75 0.86
8 E 393 393 0.24 3.78 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10053.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10053.7 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
5.30899 0.30934 0.30934

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 0.282
N3 0.000 0.000 1.430
H4 0.000 1.025 -1.547
H5 0.888 -0.512 -1.547
H6 -0.888 -0.512 -1.547

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.45882.60631.08961.08961.0896
C21.45881.14752.09652.09652.0965
N32.60631.14753.14793.14793.1479
H41.08962.09653.14791.77501.7750
H51.08962.09653.14791.77501.7750
H61.08962.09653.14791.77501.7750

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 109.858
C2 C1 H5 109.858 C2 C1 H6 109.858
H4 C1 H5 109.081 H4 C1 H6 109.081
H5 C1 H6 109.081
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 -0.345      
2 C 0.065      
3 N -0.276      
4 H 0.185      
5 H 0.185      
6 H 0.185      


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 -3.901 3.901
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.544 0.000 0.000
y 0.000 -17.544 0.000
z 0.000 0.000 -20.560
Traceless
 xyz
x 1.508 0.000 0.000
y 0.000 1.508 0.000
z 0.000 0.000 -3.017
Polar
3z2-r2-6.033
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 2.763 0.000 0.000
y 0.000 2.767 -0.002
z 0.000 -0.002 5.190


<r2> (average value of r2) Å2
<r2> 45.006
(<r2>)1/2 6.709