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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: HSEh1PBE/STO-3G

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/STO-3G
 hartrees
Energy at 0K-130.941407
Energy at 298.15K-130.943903
HF Energy-130.941407
Nuclear repulsion energy57.239554
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/STO-3G
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 3347 2956 1.99 52.68 0.00 0.00
2 A1 2454 2167 6.22 17.05 0.24 0.39
3 A1 1553 1371 1.46 11.56 0.66 0.80
4 A1 973 859 1.09 3.08 0.25 0.40
5 E 3512 3101 4.06 32.54 0.75 0.86
5 E 3512 3101 4.06 32.54 0.75 0.86
6 E 1647 1454 9.35 16.39 0.75 0.86
6 E 1647 1454 9.35 16.39 0.75 0.86
7 E 1146 1012 4.26 0.16 0.75 0.86
7 E 1146 1012 4.26 0.16 0.75 0.86
8 E 383 338 0.23 1.90 0.75 0.86
8 E 383 338 0.23 1.90 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10850.1 cm-1
Scaled (by 0.8831) Zero Point Vibrational Energy (zpe) 9581.7 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 HSEh1PBE/STO-3G
ABC
5.21392 0.29398 0.29398

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/STO-3G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.205
C2 0.000 0.000 0.280
N3 0.000 0.000 1.471
H4 0.000 1.034 -1.584
H5 0.896 -0.517 -1.584
H6 -0.896 -0.517 -1.584

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.48552.67641.10131.10131.1013
C21.48551.19092.13192.13192.1319
N32.67641.19093.22553.22553.2255
H41.10132.13193.22551.79111.7911
H51.10132.13193.22551.79111.7911
H61.10132.13193.22551.79111.7911

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 110.118
C2 C1 H5 110.118 C2 C1 H6 110.118
H4 C1 H5 108.816 H4 C1 H6 108.816
H5 C1 H6 108.816
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.241      
2 C 0.067      
3 N -0.184      
4 H 0.119      
5 H 0.119      
6 H 0.119      


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 -3.035 3.035
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.115 0.000 0.000
y 0.000 -16.115 0.000
z 0.000 0.000 -19.000
Traceless
 xyz
x 1.443 0.000 0.000
y 0.000 1.443 0.000
z 0.000 0.000 -2.885
Polar
3z2-r2-5.770
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 1.203 0.000 0.000
y 0.000 1.203 0.000
z 0.000 0.000 3.031


<r2> (average value of r2) Å2
<r2> 45.739
(<r2>)1/2 6.763