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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: BLYP/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-132.757459
Energy at 298.15K-132.760002
HF Energy-132.757459
Nuclear repulsion energy58.244157
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/6-311+G(3df,2p)
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 2969 2952 3.79 190.10 0.01 0.01
2 A1 2265 2252 8.51 81.23 0.17 0.30
3 A1 1377 1369 1.72 8.07 0.37 0.54
4 A1 898 893 0.59 4.82 0.05 0.10
5 E 3029 3013 1.43 63.03 0.75 0.86
5 E 3029 3013 1.43 63.03 0.75 0.86
6 E 1441 1433 10.15 5.70 0.75 0.86
6 E 1441 1433 10.15 5.70 0.75 0.86
7 E 1032 1026 1.55 0.09 0.75 0.86
7 E 1032 1026 1.55 0.09 0.75 0.86
8 E 364 362 0.31 1.67 0.75 0.86
8 E 364 362 0.31 1.67 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9620.0 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 9567.1 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/6-311+G(3df,2p)
ABC
5.27691 0.30519 0.30519

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-311+G(3df,2p)

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.181
C2 0.000 0.000 0.280
N3 0.000 0.000 1.442
H4 0.000 1.028 -1.562
H5 0.890 -0.514 -1.562
H6 -0.890 -0.514 -1.562

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.46172.62291.09611.09611.0961
C21.46171.16122.10972.10972.1097
N32.62291.16123.17453.17453.1745
H41.09612.10973.17451.78041.7804
H51.09612.10973.17451.78041.7804
H61.09612.10973.17451.78041.7804

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 110.317
C2 C1 H5 110.317 C2 C1 H6 110.317
H4 C1 H5 108.613 H4 C1 H6 108.613
H5 C1 H6 108.613
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.288      
2 C 0.590      
3 N -0.832      
4 H 0.177      
5 H 0.177      
6 H 0.177      


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 -4.008 4.008
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.898 0.000 0.000
y 0.000 -17.898 0.000
z 0.000 0.000 -21.164
Traceless
 xyz
x 1.633 0.000 0.000
y 0.000 1.633 0.000
z 0.000 0.000 -3.266
Polar
3z2-r2-6.531
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 3.657 0.000 0.000
y 0.000 3.657 0.000
z 0.000 0.000 6.239


<r2> (average value of r2) Å2
<r2> 45.739
(<r2>)1/2 6.763