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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: LSDA/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at LSDA/Def2TZVPP
 hartrees
Energy at 0K-132.053200
Energy at 298.15K-132.055771
HF Energy-132.053200
Nuclear repulsion energy58.788579
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 LSDA/Def2TZVPP
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 2987 2987 0.19      
2 A1 2333 2333 14.95      
3 A1 1336 1336 9.18      
4 A1 961 961 0.27      
5 E 3068 3068 0.61      
5 E 3068 3068 0.61      
6 E 1391 1391 13.84      
6 E 1391 1391 13.84      
7 E 1000 1000 4.46      
7 E 1000 1000 4.46      
8 E 381 381 0.15      
8 E 381 381 0.15      

Unscaled Zero Point Vibrational Energy (zpe) 9649.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9649.1 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 LSDA/Def2TZVPP
ABC
5.26435 0.31299 0.31299

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/Def2TZVPP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.162
C2 0.000 0.000 0.271
N3 0.000 0.000 1.426
H4 0.000 1.029 -1.547
H5 0.891 -0.515 -1.547
H6 -0.891 -0.515 -1.547

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.43312.58751.09871.09871.0987
C21.43311.15442.08902.08902.0890
N32.58751.15443.14543.14543.1454
H41.09872.08903.14541.78251.7825
H51.09872.08903.14541.78251.7825
H61.09872.08903.14541.78251.7825

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 110.504
C2 C1 H5 110.504 C2 C1 H6 110.504
H4 C1 H5 108.419 H4 C1 H6 108.419
H5 C1 H6 108.419
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.250      
2 C -0.289      
3 N 0.067      
4 H 0.158      
5 H 0.158      
6 H 0.158      


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 -4.077 4.077
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.670 0.000 0.000
y 0.000 -17.670 0.000
z 0.000 0.000 -20.740
Traceless
 xyz
x 1.535 0.000 0.000
y 0.000 1.535 0.000
z 0.000 0.000 -3.070
Polar
3z2-r2-6.140
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 3.352 0.000 0.000
y 0.000 3.352 0.000
z 0.000 0.000 5.957


<r2> (average value of r2) Å2
<r2> 44.797
(<r2>)1/2 6.693