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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: B97D3/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B97D3/6-311G**
 hartrees
Energy at 0K-132.703673
Energy at 298.15K-132.706242
HF Energy-132.703673
Nuclear repulsion energy58.289725
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 B97D3/6-311G**
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 2996 2953 5.60 163.26 0.00 0.00
2 A1 2293 2260 7.22 58.89 0.27 0.43
3 A1 1380 1360 2.99 10.23 0.61 0.76
4 A1 914 901 0.76 3.67 0.14 0.25
5 E 3069 3025 3.68 71.57 0.75 0.86
5 E 3069 3025 3.68 71.57 0.75 0.86
6 E 1447 1427 10.60 11.21 0.75 0.86
6 E 1447 1427 10.60 11.21 0.75 0.86
7 E 1037 1023 2.68 0.00 0.75 0.86
7 E 1037 1023 2.68 0.00 0.75 0.86
8 E 374 368 0.09 3.44 0.75 0.86
8 E 374 368 0.09 3.44 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9719.3 cm-1
Scaled (by 0.9857) 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 B97D3/6-311G**
ABC
5.27265 0.30595 0.30595

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.180
C2 0.000 0.000 0.279
N3 0.000 0.000 1.440
H4 0.000 1.028 -1.559
H5 0.891 -0.514 -1.559
H6 -0.891 -0.514 -1.559

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.45822.62001.09601.09601.0960
C21.45821.16182.10552.10552.1055
N32.62001.16183.17043.17043.1704
H41.09602.10553.17041.78111.7811
H51.09602.10553.17041.78111.7811
H61.09602.10553.17041.78111.7811

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 110.233
C2 C1 H5 110.233 C2 C1 H6 110.233
H4 C1 H5 108.698 H4 C1 H6 108.698
H5 C1 H6 108.698
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.251      
2 C 0.021      
3 N -0.246      
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 -3.840 3.840
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.434 0.000 0.000
y 0.000 -17.434 0.000
z 0.000 0.000 -20.462
Traceless
 xyz
x 1.514 0.000 0.000
y 0.000 1.514 0.000
z 0.000 0.000 -3.028
Polar
3z2-r2-6.055
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 2.859 0.000 0.000
y 0.000 2.859 0.000
z 0.000 0.000 5.494


<r2> (average value of r2) Å2
<r2> 45.317
(<r2>)1/2 6.732