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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: B3LYP/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-132.765813
Energy at 298.15K-132.768400
HF Energy-132.765813
Nuclear repulsion energy58.281136
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/6-31+G**
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 3058 2948 3.66 168.41 0.00 0.01
2 A1 2365 2280 11.29 71.40 0.21 0.35
3 A1 1415 1364 2.64 10.06 0.66 0.79
4 A1 929 895 1.74 3.92 0.12 0.21
5 E 3135 3023 1.03 70.41 0.75 0.86
5 E 3135 3023 1.03 70.41 0.75 0.86
6 E 1479 1426 12.30 10.36 0.75 0.86
6 E 1479 1426 12.30 10.36 0.75 0.86
7 E 1061 1023 2.08 0.00 0.75 0.86
7 E 1061 1023 2.08 0.00 0.75 0.86
8 E 379 365 0.17 4.71 0.75 0.86
8 E 379 365 0.17 4.71 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9936.0 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 9580.3 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/6-31+G**
ABC
5.28730 0.30548 0.30548

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.182
C2 0.000 0.000 0.280
N3 0.000 0.000 1.441
H4 0.000 1.027 -1.558
H5 0.889 -0.513 -1.558
H6 -0.889 -0.513 -1.558

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.46172.62271.09381.09381.0938
C21.46171.16102.10562.10562.1056
N32.62271.16103.17023.17023.1702
H41.09382.10563.17021.77861.7786
H51.09382.10563.17021.77861.7786
H61.09382.10563.17021.77861.7786

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 110.136
C2 C1 H5 110.136 C2 C1 H6 110.136
H4 C1 H5 108.798 H4 C1 H6 108.798
H5 C1 H6 108.798
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.471      
2 C 0.370      
3 N -0.491      
4 H 0.197      
5 H 0.197      
6 H 0.197      


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 -4.080 4.080
CHELPG        
AIM        
ESP 0.001 0.000 4.072 4.072


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.795 0.000 0.000
y 0.000 -17.795 0.000
z 0.000 0.000 -21.108
Traceless
 xyz
x 1.657 0.000 0.000
y 0.000 1.657 0.000
z 0.000 0.000 -3.313
Polar
3z2-r2-6.627
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 3.033 0.000 0.000
y 0.000 3.033 0.000
z 0.000 0.000 5.779


<r2> (average value of r2) Å2
<r2> 45.636
(<r2>)1/2 6.755