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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: HSEh1PBE/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-132.618260
Energy at 298.15K-132.620847
HF Energy-132.618260
Nuclear repulsion energy58.397295
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/aug-cc-pVDZ
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 3072 2956 2.42 197.49 0.00 0.01
2 A1 2384 2294 12.75 77.95 0.17 0.29
3 A1 1375 1323 2.52 5.46 0.43 0.60
4 A1 953 917 1.17 5.70 0.05 0.10
5 E 3164 3045 0.36 58.16 0.75 0.86
5 E 3164 3045 0.36 58.16 0.75 0.86
6 E 1438 1384 11.21 5.23 0.75 0.86
6 E 1438 1384 11.21 5.23 0.75 0.86
7 E 1034 995 2.17 0.12 0.75 0.86
7 E 1034 995 2.17 0.12 0.75 0.86
8 E 378 363 0.42 1.56 0.75 0.86
8 E 378 363 0.42 1.56 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9905.8 cm-1
Scaled (by 0.9622) Zero Point Vibrational Energy (zpe) 9531.3 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/aug-cc-pVDZ
ABC
5.24652 0.30749 0.30749

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/aug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.177
C2 0.000 0.000 0.277
N3 0.000 0.000 1.437
H4 0.000 1.031 -1.552
H5 0.893 -0.515 -1.552
H6 -0.893 -0.515 -1.552

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.45482.61381.09691.09691.0969
C21.45481.15902.10012.10012.1001
N32.61381.15903.16153.16153.1615
H41.09692.10013.16151.78551.7855
H51.09692.10013.16151.78551.7855
H61.09692.10013.16151.78551.7855

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 109.980
C2 C1 H5 109.980 C2 C1 H6 109.980
H4 C1 H5 108.957 H4 C1 H6 108.957
H5 C1 H6 108.957
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.479      
2 C -0.103      
3 N -0.300      
4 H -0.025      
5 H -0.025      
6 H -0.025      


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 -4.058 4.058
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.646 0.000 0.000
y 0.000 -17.646 0.000
z 0.000 0.000 -20.850
Traceless
 xyz
x 1.602 0.000 0.000
y 0.000 1.602 0.000
z 0.000 0.000 -3.204
Polar
3z2-r2-6.409
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 3.577 0.000 0.000
y 0.000 3.577 0.000
z 0.000 0.000 6.013


<r2> (average value of r2) Å2
<r2> 45.328
(<r2>)1/2 6.733