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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: TPSSh/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 TPSSh/6-311G**
 hartrees
Energy at 0K-132.795204
Energy at 298.15K-132.797805
HF Energy-132.795204
Nuclear repulsion energy58.449447
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 TPSSh/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 3048 3048 4.20 158.11 0.00 0.00
2 A1 2344 2344 7.71 55.38 0.27 0.42
3 A1 1415 1415 2.22 8.96 0.62 0.76
4 A1 928 928 1.38 3.67 0.14 0.25
5 E 3122 3122 2.87 69.07 0.75 0.86
5 E 3122 3122 2.86 69.07 0.75 0.86
6 E 1487 1487 10.67 11.04 0.75 0.86
6 E 1487 1487 10.67 11.04 0.75 0.86
7 E 1063 1063 1.95 0.00 0.75 0.86
7 E 1063 1063 1.95 0.00 0.75 0.86
8 E 382 382 0.14 3.66 0.75 0.86
8 E 382 382 0.14 3.66 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9921.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9921.8 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 TPSSh/6-311G**
ABC
5.29604 0.30740 0.30740

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.178
C2 0.000 0.000 0.279
N3 0.000 0.000 1.436
H4 0.000 1.026 -1.553
H5 0.889 -0.513 -1.553
H6 -0.889 -0.513 -1.553

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.45772.61451.09231.09231.0923
C21.45771.15672.09992.09992.0999
N32.61451.15673.16023.16023.1602
H41.09232.09993.16021.77721.7772
H51.09232.09993.16021.77721.7772
H61.09232.09993.16021.77721.7772

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 110.050
C2 C1 H5 110.050 C2 C1 H6 110.050
H4 C1 H5 108.886 H4 C1 H6 108.886
H5 C1 H6 108.886
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.242      
2 C 0.060      
3 N -0.295      
4 H 0.159      
5 H 0.159      
6 H 0.159      


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 -3.884 3.884
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.813 0.000 0.000
y 0.000 2.813 0.000
z 0.000 0.000 5.368


<r2> (average value of r2) Å2
<r2> 45.146
(<r2>)1/2 6.719