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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: PBEPBEultrafine/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at PBEPBEultrafine/cc-pVTZ
 hartrees
Energy at 0K-132.631461
Energy at 298.15K-132.634012
HF Energy-132.631461
Nuclear repulsion energy58.308005
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 PBEPBEultrafine/cc-pVTZ
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 2983 2962 2.42 179.29 0.00 0.01
2 A1 2283 2267 8.75 66.41 0.24 0.38
3 A1 1354 1345 3.86 8.68 0.49 0.66
4 A1 922 915 0.34 4.27 0.09 0.16
5 E 3055 3034 0.63 64.67 0.75 0.86
5 E 3055 3034 0.63 64.67 0.75 0.86
6 E 1420 1410 10.63 7.96 0.75 0.86
6 E 1420 1410 10.63 7.95 0.75 0.86
7 E 1016 1009 2.49 0.02 0.75 0.86
7 E 1016 1009 2.49 0.02 0.75 0.86
8 E 368 366 0.10 2.09 0.75 0.86
8 E 368 366 0.10 2.08 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9629.8 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 9563.3 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 PBEPBEultrafine/cc-pVTZ
ABC
5.25677 0.30659 0.30659

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

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 0.277
N3 0.000 0.000 1.440
H4 0.000 1.030 -1.558
H5 0.892 -0.515 -1.558
H6 -0.892 -0.515 -1.558

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.45402.61661.09821.09821.0982
C21.45401.16272.10442.10442.1044
N32.61661.16273.16983.16983.1698
H41.09822.10443.16981.78381.7838
H51.09822.10443.16981.78381.7838
H61.09822.10443.16981.78381.7838

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 110.313
C2 C1 H5 110.313 C2 C1 H6 110.313
H4 C1 H5 108.616 H4 C1 H6 108.616
H5 C1 H6 108.616
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.254      
2 C -0.109      
3 N -0.040      
4 H 0.134      
5 H 0.134      
6 H 0.134      


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 -3.887 3.887
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.603 0.000 0.000
y 0.000 -17.603 0.000
z 0.000 0.000 -20.535
Traceless
 xyz
x 1.466 0.000 0.000
y 0.000 1.466 0.000
z 0.000 0.000 -2.932
Polar
3z2-r2-5.865
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 3.246 0.000 0.000
y 0.000 3.246 0.000
z 0.000 0.000 5.808


<r2> (average value of r2) Å2
<r2> 45.351
(<r2>)1/2 6.734