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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: BLYP/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 BLYP/daug-cc-pVTZ
 hartrees
Energy at 0K-132.761331
Energy at 298.15K-132.763866
HF Energy-132.761331
Nuclear repulsion energy58.242076
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/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 2974 2974 4.10 207.50 0.01 0.01
2 A1 2264 2264 8.49 87.88 0.15 0.26
3 A1 1376 1376 1.57 8.66 0.36 0.52
4 A1 898 898 0.62 5.02 0.04 0.08
5 E 3033 3033 1.39 63.70 0.75 0.86
5 E 3033 3033 1.39 63.72 0.75 0.86
6 E 1439 1439 9.75 5.65 0.75 0.86
6 E 1439 1439 9.75 5.70 0.75 0.86
7 E 1035 1035 1.51 0.08 0.75 0.86
7 E 1035 1035 1.51 0.08 0.75 0.86
8 E 363 363 0.35 1.21 0.75 0.86
8 E 363 363 0.35 1.21 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9625.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9625.1 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/daug-cc-pVTZ
ABC
5.27541 0.30515 0.30515

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

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 1.442
H4 0.000 1.028 -1.561
H5 0.890 -0.514 -1.561
H6 -0.890 -0.514 -1.561

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.46212.62321.09601.09601.0960
C21.46211.16112.10952.10952.1095
N32.62321.16113.17423.17423.1742
H41.09602.10953.17421.78061.7806
H51.09602.10953.17421.78061.7806
H61.09602.10953.17421.78061.7806

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 110.279
C2 C1 H5 110.279 C2 C1 H6 110.279
H4 C1 H5 108.652 H4 C1 H6 108.652
H5 C1 H6 108.652
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.069      
2 C -0.057      
3 N -0.719      
4 H 0.282      
5 H 0.282      
6 H 0.282      


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 -3.992 3.992
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.888 0.000 0.000
y 0.000 -17.888 0.000
z 0.000 0.000 -21.182
Traceless
 xyz
x 1.647 0.000 0.000
y 0.000 1.647 0.000
z 0.000 0.000 -3.294
Polar
3z2-r2-6.588
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 3.790 0.000 0.000
y 0.000 3.790 0.000
z 0.000 0.000 6.296


<r2> (average value of r2) Å2
<r2> 45.741
(<r2>)1/2 6.763