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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: TPSSh/aug-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 TPSSh/aug-cc-pVDZ
 hartrees
Energy at 0K-132.777325
Energy at 298.15K-132.779890
HF Energy-132.777325
Nuclear repulsion energy58.162475
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/aug-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 3047 2947 4.88 201.16 0.00 0.01
2 A1 2330 2254 9.09 76.86 0.16 0.28
3 A1 1388 1343 0.84 6.47 0.40 0.57
4 A1 930 900 1.30 5.82 0.06 0.11
5 E 3129 3027 2.33 61.80 0.75 0.86
5 E 3129 3027 2.33 61.80 0.75 0.86
6 E 1459 1411 9.37 5.75 0.75 0.86
6 E 1459 1411 9.37 5.75 0.75 0.86
7 E 1043 1008 0.92 0.08 0.75 0.86
7 E 1043 1008 0.92 0.08 0.75 0.86
8 E 367 355 0.29 1.56 0.75 0.86
8 E 367 355 0.29 1.56 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9844.8 cm-1
Scaled (by 0.9673) Zero Point Vibrational Energy (zpe) 9522.9 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/aug-cc-pVDZ
ABC
5.23344 0.30468 0.30468

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.184
C2 0.000 0.000 0.279
N3 0.000 0.000 1.443
H4 0.000 1.032 -1.557
H5 0.894 -0.516 -1.557
H6 -0.894 -0.516 -1.557

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.46232.62691.09771.09771.0977
C21.46231.16462.10622.10622.1062
N32.62691.16463.17313.17313.1731
H41.09772.10623.17311.78781.7878
H51.09772.10623.17311.78781.7878
H61.09772.10623.17311.78781.7878

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 109.898
C2 C1 H5 109.898 C2 C1 H6 109.898
H4 C1 H5 109.041 H4 C1 H6 109.041
H5 C1 H6 109.041
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.481      
2 C -0.103      
3 N -0.307      
4 H -0.024      
5 H -0.024      
6 H -0.024      


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 -4.009 4.009
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 3.612 0.000 0.000
y 0.000 3.611 0.000
z 0.000 0.000 6.116


<r2> (average value of r2) Å2
<r2> 45.612
(<r2>)1/2 6.754