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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: B97D3/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B97D3/3-21G*
 hartrees
Energy at 0K-131.940627
Energy at 298.15K-131.943345
HF Energy-131.940627
Nuclear repulsion energy57.956909
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 B97D3/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3006 3006 3.00 121.82 0.00 0.00
2 A1 2275 2275 2.05 37.81 0.31 0.47
3 A1 1446 1446 12.63 18.90 0.61 0.76
4 A1 903 903 0.94 3.03 0.19 0.31
5 E 3074 3074 2.97 66.91 0.75 0.86
5 E 3074 3074 2.97 66.92 0.75 0.86
6 E 1515 1515 13.64 21.67 0.75 0.86
6 E 1515 1515 13.64 21.67 0.75 0.86
7 E 1096 1096 4.97 0.00 0.75 0.86
7 E 1096 1096 4.97 0.00 0.75 0.86
8 E 446 446 0.27 3.50 0.75 0.86
8 E 446 446 0.27 3.50 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9945.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9945.5 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 B97D3/3-21G*
ABC
5.23670 0.30272 0.30272

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.185
C2 0.000 0.000 0.276
N3 0.000 0.000 1.450
H4 0.000 1.032 -1.566
H5 0.894 -0.516 -1.566
H6 -0.894 -0.516 -1.566

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.46082.63451.10021.10021.1002
C21.46081.17372.11172.11172.1117
N32.63451.17373.18773.18773.1877
H41.10022.11173.18771.78721.7872
H51.10022.11173.18771.78721.7872
H61.10022.11173.18771.78721.7872

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 110.297
C2 C1 H5 110.297 C2 C1 H6 110.297
H4 C1 H5 108.633 H4 C1 H6 108.633
H5 C1 H6 108.633
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.638      
2 C 0.345      
3 N -0.490      
4 H 0.261      
5 H 0.261      
6 H 0.261      


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 -3.603 3.603
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.307 0.000 0.000
y 0.000 -17.307 0.000
z 0.000 0.000 -20.244
Traceless
 xyz
x 1.468 0.000 0.000
y 0.000 1.468 0.000
z 0.000 0.000 -2.937
Polar
3z2-r2-5.874
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 2.340 0.000 0.000
y 0.000 2.340 0.000
z 0.000 0.000 4.804


<r2> (average value of r2) Å2
<r2> 45.567
(<r2>)1/2 6.750