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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: PBE1PBE/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 PBE1PBE/Def2TZVPP
 hartrees
Energy at 0K-132.642360
Energy at 298.15K-132.644975
HF Energy-132.642360
Nuclear repulsion energy58.754358
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 PBE1PBE/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 3070 3070 1.69 176.41 0.00 0.00
2 A1 2393 2393 11.57 65.08 0.22 0.36
3 A1 1402 1402 3.36 5.47 0.51 0.68
4 A1 950 950 1.04 4.44 0.08 0.14
5 E 3151 3151 0.22 58.14 0.75 0.86
5 E 3151 3151 0.22 58.14 0.75 0.86
6 E 1466 1466 11.56 6.89 0.75 0.86
6 E 1466 1466 11.56 6.89 0.75 0.86
7 E 1054 1054 2.52 0.02 0.75 0.86
7 E 1054 1054 2.52 0.02 0.75 0.86
8 E 390 390 0.39 2.61 0.75 0.86
8 E 390 390 0.39 2.61 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9967.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9967.2 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 PBE1PBE/Def2TZVPP
ABC
5.31774 0.31090 0.31090

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/Def2TZVPP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.171
C2 0.000 0.000 0.279
N3 0.000 0.000 1.428
H4 0.000 1.024 -1.546
H5 0.887 -0.512 -1.546
H6 -0.887 -0.512 -1.546

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.44982.59881.09021.09021.0902
C21.44981.14902.09192.09192.0919
N32.59881.14903.14453.14453.1445
H41.09022.09193.14451.77351.7735
H51.09022.09193.14451.77351.7735
H61.09022.09193.14451.77351.7735

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 110.082
C2 C1 H5 110.082 C2 C1 H6 110.082
H4 C1 H5 108.854 H4 C1 H6 108.854
H5 C1 H6 108.854
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.110      
2 C -0.258      
3 N -0.006      
4 H 0.125      
5 H 0.125      
6 H 0.125      


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 -4.019 4.019
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.543 0.000 0.000
y 0.000 -17.543 0.000
z 0.000 0.000 -20.659
Traceless
 xyz
x 1.558 0.000 0.000
y 0.000 1.558 0.000
z 0.000 0.000 -3.116
Polar
3z2-r2-6.232
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 3.239 0.000 0.000
y 0.000 3.239 0.000
z 0.000 0.000 5.684


<r2> (average value of r2) Å2
<r2> 44.880
(<r2>)1/2 6.699