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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: B2PLYP/daug-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 B2PLYP/daug-cc-pVTZ
 hartrees
Energy at 0K-132.698121
Energy at 298.15K-132.700697
HF Energy-132.524166
Nuclear repulsion energy58.513327
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 B2PLYP/daug-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 3075 3075 2.79 191.10 0.00 0.01
2 A1 2298 2298 4.21 69.08 0.14 0.25
3 A1 1423 1423 1.21 4.92 0.40 0.57
4 A1 929 929 1.30 5.85 0.06 0.10
5 E 3151 3151 0.65 55.02 0.75 0.86
5 E 3151 3151 0.65 55.02 0.75 0.86
6 E 1492 1492 10.26 5.05 0.75 0.86
6 E 1492 1492 10.26 5.05 0.75 0.86
7 E 1070 1070 1.49 0.08 0.75 0.86
7 E 1070 1070 1.49 0.08 0.75 0.86
8 E 372 372 0.61 1.29 0.75 0.86
8 E 372 372 0.61 1.29 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9945.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9945.8 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 B2PLYP/daug-cc-pVTZ
ABC
5.34082 0.30774 0.30774

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/daug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.178
C2 0.000 0.000 0.279
N3 0.000 0.000 1.436
H4 0.000 1.022 -1.551
H5 0.885 -0.511 -1.551
H6 -0.885 -0.511 -1.551

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.45702.61381.08751.08751.0875
C21.45701.15682.09532.09532.0953
N32.61381.15683.15613.15613.1561
H41.08752.09533.15611.76971.7697
H51.08752.09533.15611.76971.7697
H61.08752.09533.15611.76971.7697

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 110.022
C2 C1 H5 110.022 C2 C1 H6 110.022
H4 C1 H5 108.915 H4 C1 H6 108.915
H5 C1 H6 108.915
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.323      
2 C -0.298      
3 N -0.706      
4 H 0.442      
5 H 0.442      
6 H 0.442      


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 -3.999 3.999
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.756 0.000 0.000
y 0.000 -17.756 0.000
z 0.000 0.000 -21.067
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 3.616 0.000 0.000
y 0.000 3.616 0.000
z 0.000 0.000 5.883


<r2> (average value of r2) Å2
<r2> 45.346
(<r2>)1/2 6.734