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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-132.699419
Energy at 298.15K-132.701988
HF Energy-132.699419
Nuclear repulsion energy58.277358
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 2997 2997 6.97 151.84 0.00 0.00
2 A1 2293 2293 6.84 58.54 0.27 0.43
3 A1 1395 1395 3.81 11.33 0.62 0.77
4 A1 914 914 0.99 3.59 0.15 0.26
5 E 3069 3069 5.48 72.33 0.75 0.86
5 E 3069 3069 5.48 72.33 0.75 0.86
6 E 1464 1464 11.23 12.05 0.75 0.86
6 E 1464 1464 11.23 12.05 0.75 0.86
7 E 1048 1048 3.03 0.02 0.75 0.86
7 E 1048 1048 3.03 0.02 0.75 0.86
8 E 374 374 0.11 3.53 0.75 0.86
8 E 374 374 0.11 3.53 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9754.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9754.5 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
5.28285 0.30572 0.30572

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 -1.179
C2 0.000 0.000 0.279
N3 0.000 0.000 1.441
H4 0.000 1.027 -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
C11.45862.62031.09611.09611.0961
C21.45861.16182.10792.10792.1079
N32.62031.16183.17323.17323.1732
H41.09612.10793.17321.77941.7794
H51.09612.10793.17321.77941.7794
H61.09612.10793.17321.77941.7794

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 110.397
C2 C1 H5 110.397 C2 C1 H6 110.397
H4 C1 H5 108.530 H4 C1 H6 108.530
H5 C1 H6 108.530
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 -0.630      
2 C 0.112      
3 N -0.247      
4 H 0.255      
5 H 0.255      
6 H 0.255      


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 -3.824 3.824
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.452 0.000 0.000
y 0.000 -17.452 0.000
z 0.000 0.000 -20.509
Traceless
 xyz
x 1.528 0.000 0.000
y 0.000 1.528 0.000
z 0.000 0.000 -3.057
Polar
3z2-r2-6.114
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 2.823 0.000 0.000
y 0.000 2.823 0.000
z 0.000 0.000 5.438


<r2> (average value of r2) Å2
<r2> 45.364
(<r2>)1/2 6.735