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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: B3LYP/aug-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 B3LYP/aug-cc-pVTZ
 hartrees
Energy at 0K-132.808632
Energy at 298.15K-132.811235
HF Energy-132.808632
Nuclear repulsion energy58.673555
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 B3LYP/aug-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 3049 2950 2.91 194.82 0.00 0.01
2 A1 2363 2286 11.25 81.20 0.15 0.26
3 A1 1413 1367 1.73 6.36 0.38 0.55
4 A1 928 897 1.22 5.00 0.05 0.09
5 E 3116 3015 0.81 58.45 0.75 0.86
5 E 3116 3015 0.81 58.45 0.75 0.86
6 E 1475 1427 10.45 5.24 0.75 0.86
6 E 1475 1427 10.45 5.24 0.75 0.86
7 E 1063 1029 1.85 0.10 0.75 0.86
7 E 1063 1029 1.85 0.10 0.75 0.86
8 E 382 369 0.63 1.41 0.75 0.86
8 E 382 369 0.63 1.41 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9911.5 cm-1
Scaled (by 0.9675) Zero Point Vibrational Energy (zpe) 9589.4 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 B3LYP/aug-cc-pVTZ
ABC
5.33251 0.30955 0.30955

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.174
C2 0.000 0.000 0.281
N3 0.000 0.000 1.430
H4 0.000 1.023 -1.550
H5 0.886 -0.511 -1.550
H6 -0.886 -0.511 -1.550

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.45512.60451.08931.08931.0893
C21.45511.14942.09682.09682.0968
N32.60451.14943.15053.15053.1505
H41.08932.09683.15051.77111.7711
H51.08932.09683.15051.77111.7711
H61.08932.09683.15051.77111.7711

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 110.160
C2 C1 H5 110.160 C2 C1 H6 110.160
H4 C1 H5 108.773 H4 C1 H6 108.773
H5 C1 H6 108.773
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.466      
2 C 0.075      
3 N -0.349      
4 H 0.247      
5 H 0.247      
6 H 0.247      


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 -4.042 4.042
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.724 0.000 0.000
y 0.000 -17.724 0.000
z 0.000 0.000 -21.036
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-r2-6.623
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 3.631 0.000 0.000
y 0.000 3.631 0.000
z 0.000 0.000 5.983


<r2> (average value of r2) Å2
<r2> 45.166
(<r2>)1/2 6.721