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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: BLYP/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 BLYP/6-311G**
 hartrees
Energy at 0K-132.745676
Energy at 298.15K-132.748240
HF Energy-132.745676
Nuclear repulsion energy58.124891
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 BLYP/6-311G**
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 2970 2958 4.59 162.46 0.00 0.00
2 A1 2271 2262 6.13 57.88 0.27 0.43
3 A1 1376 1371 3.18 11.04 0.59 0.74
4 A1 901 898 0.86 3.39 0.14 0.25
5 E 3032 3020 3.02 72.71 0.75 0.86
5 E 3032 3020 3.02 72.71 0.75 0.86
6 E 1440 1434 10.53 11.61 0.75 0.86
6 E 1440 1434 10.53 11.61 0.75 0.86
7 E 1035 1030 2.67 0.01 0.75 0.86
7 E 1035 1030 2.67 0.01 0.75 0.86
8 E 373 372 0.09 3.29 0.75 0.86
8 E 373 372 0.09 3.29 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9638.2 cm-1
Scaled (by 0.9961) Zero Point Vibrational Energy (zpe) 9600.6 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 BLYP/6-311G**
ABC
5.25484 0.30402 0.30402

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.183
C2 0.000 0.000 0.281
N3 0.000 0.000 1.445
H4 0.000 1.030 -1.566
H5 0.892 -0.515 -1.566
H6 -0.892 -0.515 -1.566

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.46382.62771.09881.09881.0988
C21.46381.16392.11412.11412.1141
N32.62771.16393.18153.18153.1815
H41.09882.11413.18151.78411.7841
H51.09882.11413.18151.78411.7841
H61.09882.11413.18151.78411.7841

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 110.367
C2 C1 H5 110.367 C2 C1 H6 110.367
H4 C1 H5 108.560 H4 C1 H6 108.560
H5 C1 H6 108.560
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.246      
2 C -0.020      
3 N -0.190      
4 H 0.152      
5 H 0.152      
6 H 0.152      


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 -3.800 3.800
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.634 0.000 0.000
y 0.000 -17.634 0.000
z 0.000 0.000 -20.691
Traceless
 xyz
x 1.528 0.000 0.000
y 0.000 1.528 0.000
z 0.000 0.000 -3.057
Polar
3z2-r2-6.113
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 2.881 0.000 0.000
y 0.000 2.881 0.000
z 0.000 0.000 5.498


<r2> (average value of r2) Å2
<r2> 45.666
(<r2>)1/2 6.758