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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: B3PW91/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B3PW91/daug-cc-pVDZ
 hartrees
Energy at 0K-132.716174
Energy at 298.15K-132.718753
HF Energy-132.716174
Nuclear repulsion energy58.337817
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 B3PW91/daug-cc-pVDZ
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 3057 3057 2.91 197.46 0.00 0.01
2 A1 2366 2366 11.51 80.22 0.15 0.26
3 A1 1372 1372 2.34 5.95 0.42 0.60
4 A1 945 945 1.12 5.76 0.05 0.09
5 E 3146 3146 0.63 57.93 0.75 0.86
5 E 3146 3146 0.63 57.96 0.75 0.86
6 E 1438 1438 11.08 5.26 0.75 0.86
6 E 1438 1438 11.08 5.25 0.75 0.86
7 E 1035 1035 2.06 0.08 0.75 0.86
7 E 1035 1035 2.06 0.08 0.75 0.86
8 E 373 373 0.40 1.34 0.75 0.86
8 E 373 373 0.40 1.34 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9861.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9861.7 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 B3PW91/daug-cc-pVDZ
ABC
5.24869 0.30674 0.30674

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/daug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.179
C2 0.000 0.000 0.278
N3 0.000 0.000 1.438
H4 0.000 1.031 -1.554
H5 0.893 -0.515 -1.554
H6 -0.893 -0.515 -1.554

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.45672.61721.09681.09681.0968
C21.45671.16052.10192.10192.1019
N32.61721.16053.16493.16493.1649
H41.09682.10193.16491.78521.7852
H51.09682.10193.16491.78521.7852
H61.09682.10193.16491.78521.7852

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 110.001
C2 C1 H5 110.001 C2 C1 H6 110.001
H4 C1 H5 108.936 H4 C1 H6 108.936
H5 C1 H6 108.936
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.599      
2 C -0.095      
3 N -0.187      
4 H -0.106      
5 H -0.106      
6 H -0.106      


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 -4.049 4.049
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.608 0.000 0.000
y 0.000 -17.608 0.000
z 0.000 0.000 -20.788
Traceless
 xyz
x 1.590 0.000 0.000
y 0.000 1.590 0.000
z 0.000 0.000 -3.180
Polar
3z2-r2-6.360
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 3.650 0.000 0.000
y 0.000 3.650 0.000
z 0.000 0.000 6.033


<r2> (average value of r2) Å2
<r2> 45.375
(<r2>)1/2 6.736