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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-132.770899
Energy at 298.15K-132.773468
HF Energy-132.770899
Nuclear repulsion energy58.252371
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 B3LYPultrafine/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 3050 2960 3.39 197.55 0.00 0.01
2 A1 2354 2284 10.69 78.31 0.17 0.29
3 A1 1381 1340 1.60 6.00 0.40 0.57
4 A1 932 904 1.46 5.49 0.06 0.11
5 E 3130 3037 0.96 60.10 0.75 0.86
5 E 3130 3037 0.96 60.11 0.75 0.86
6 E 1441 1399 10.35 5.45 0.75 0.86
6 E 1441 1399 10.35 5.45 0.75 0.86
7 E 1039 1008 1.72 0.09 0.75 0.86
7 E 1039 1008 1.72 0.09 0.75 0.86
8 E 370 359 0.45 1.59 0.75 0.86
8 E 370 359 0.45 1.59 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9838.0 cm-1
Scaled (by 0.9704) Zero Point Vibrational Energy (zpe) 9546.8 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 B3LYPultrafine/aug-cc-pVDZ
ABC
5.24344 0.30553 0.30553

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.182
C2 0.000 0.000 0.280
N3 0.000 0.000 1.440
H4 0.000 1.031 -1.558
H5 0.893 -0.516 -1.558
H6 -0.893 -0.516 -1.558

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.46182.62221.09771.09771.0977
C21.46181.16042.10752.10752.1075
N32.62221.16043.17083.17083.1708
H41.09772.10753.17081.78611.7861
H51.09772.10753.17081.78611.7861
H61.09772.10753.17081.78611.7861

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 110.044
C2 C1 H5 110.044 C2 C1 H6 110.044
H4 C1 H5 108.892 H4 C1 H6 108.892
H5 C1 H6 108.892
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.826      
2 C -0.184      
3 N -0.205      
4 H -0.146      
5 H -0.146      
6 H -0.146      


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 -4.054 4.054
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.797 0.000 0.000
y 0.000 -17.797 0.000
z 0.000 0.000 -21.109
Traceless
 xyz
x 1.656 0.000 0.000
y 0.000 1.656 0.000
z 0.000 0.000 -3.312
Polar
3z2-r2-6.625
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 3.615 0.000 0.000
y 0.000 3.615 0.000
z 0.000 0.000 6.077


<r2> (average value of r2) Å2
<r2> 45.650
(<r2>)1/2 6.757