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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: HSEh1PBE/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 HSEh1PBE/Def2TZVPP
 hartrees
Energy at 0K-132.654422
Energy at 298.15K-132.657037
HF Energy-132.654422
Nuclear repulsion energy58.769764
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 HSEh1PBE/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 3069 3069 1.81 177.12 0.00 0.00
2 A1 2392 2392 11.72 65.67 0.22 0.36
3 A1 1403 1403 3.28 5.57 0.51 0.67
4 A1 949 949 1.04 4.43 0.08 0.14
5 E 3150 3150 0.26 58.53 0.75 0.86
5 E 3150 3150 0.26 58.53 0.75 0.86
6 E 1466 1466 11.48 6.89 0.75 0.86
6 E 1466 1466 11.48 6.89 0.75 0.86
7 E 1055 1055 2.50 0.02 0.75 0.86
7 E 1055 1055 2.50 0.02 0.75 0.86
8 E 391 391 0.41 2.63 0.75 0.86
8 E 391 391 0.41 2.63 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9968.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9968.0 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 HSEh1PBE/Def2TZVPP
ABC
5.32202 0.31105 0.31105

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/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 1.427
H4 0.000 1.024 -1.546
H5 0.886 -0.512 -1.546
H6 -0.886 -0.512 -1.546

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.44942.59811.09001.09001.0900
C21.44941.14862.09172.09172.0917
N32.59811.14863.14413.14413.1441
H41.09002.09173.14411.77281.7728
H51.09002.09173.14411.77281.7728
H61.09002.09173.14411.77281.7728

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 110.107
C2 C1 H5 110.107 C2 C1 H6 110.107
H4 C1 H5 108.828 H4 C1 H6 108.828
H5 C1 H6 108.828
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.098      
2 C -0.244      
3 N -0.018      
4 H 0.120      
5 H 0.120      
6 H 0.120      


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 -4.022 4.022
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.551 0.000 0.000
y 0.000 -17.551 0.000
z 0.000 0.000 -20.683
Traceless
 xyz
x 1.566 0.000 0.000
y 0.000 1.566 0.000
z 0.000 0.000 -3.132
Polar
3z2-r2-6.264
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 3.241 0.000 0.000
y 0.000 3.241 0.000
z 0.000 0.000 5.690


<r2> (average value of r2) Å2
<r2> 44.873
(<r2>)1/2 6.699