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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: B97D3/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B97D3/6-31G**
 hartrees
Energy at 0K-132.670471
Energy at 298.15K-132.673027
HF Energy-132.670471
Nuclear repulsion energy58.047288
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 B97D3/6-31G**
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 3008 3008 4.93 146.40 0.00 0.00
2 A1 2302 2302 6.94 52.27 0.30 0.46
3 A1 1388 1388 2.27 14.94 0.59 0.74
4 A1 917 917 0.84 3.65 0.19 0.32
5 E 3089 3089 3.03 72.05 0.75 0.86
5 E 3089 3089 3.03 72.05 0.75 0.86
6 E 1456 1456 9.30 17.17 0.75 0.86
6 E 1456 1456 9.29 17.17 0.75 0.86
7 E 1038 1038 3.12 0.08 0.75 0.86
7 E 1038 1038 3.12 0.08 0.75 0.86
8 E 371 371 0.28 3.73 0.75 0.86
8 E 371 371 0.28 3.73 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9760.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9760.7 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 B97D3/6-31G**
ABC
5.26174 0.30331 0.30331

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.184
C2 0.000 0.000 0.278
N3 0.000 0.000 1.448
H4 0.000 1.029 -1.565
H5 0.891 -0.515 -1.565
H6 -0.891 -0.515 -1.565

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.46232.63201.09741.09741.0974
C21.46231.16972.11072.11072.1107
N32.63201.16973.18343.18343.1834
H41.09742.11073.18341.78301.7830
H51.09742.11073.18341.78301.7830
H61.09742.11073.18341.78301.7830

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 110.280
C2 C1 H5 110.280 C2 C1 H6 110.280
H4 C1 H5 108.651 H4 C1 H6 108.651
H5 C1 H6 108.651
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.397      
2 C 0.330      
3 N -0.454      
4 H 0.174      
5 H 0.174      
6 H 0.174      


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 -3.795 3.795
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.183 0.000 0.000
y 0.000 -17.183 0.000
z 0.000 0.000 -20.145
Traceless
 xyz
x 1.481 0.000 0.000
y 0.000 1.481 0.000
z 0.000 0.000 -2.962
Polar
3z2-r2-5.924
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 2.655 0.000 0.000
y 0.000 2.655 0.000
z 0.000 0.000 5.289


<r2> (average value of r2) Å2
<r2> 45.422
(<r2>)1/2 6.740