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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: TPSSh/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at TPSSh/cc-pVQZ
 hartrees
Energy at 0K-132.817923
Energy at 298.15K-132.820510
HF Energy-132.817923
Nuclear repulsion energy58.575305
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 TPSSh/cc-pVQZ
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 3043 3043 3.40 184.99 0.00 0.01
2 A1 2338 2338 8.11 66.42 0.20 0.33
3 A1 1413 1413 1.42 6.53 0.40 0.57
4 A1 925 925 1.10 4.74 0.07 0.14
5 E 3115 3115 1.53 60.08 0.75 0.86
5 E 3115 3115 1.53 60.08 0.75 0.86
6 E 1484 1484 9.74 6.12 0.75 0.86
6 E 1484 1484 9.75 6.12 0.75 0.86
7 E 1060 1060 1.25 0.05 0.75 0.86
7 E 1060 1060 1.25 0.05 0.75 0.86
8 E 376 376 0.34 1.95 0.75 0.86
8 E 376 376 0.34 1.95 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9894.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9894.8 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 TPSSh/cc-pVQZ
ABC
5.31531 0.30861 0.30861

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/cc-pVQZ

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 0.280
N3 0.000 0.000 1.433
H4 0.000 1.024 -1.550
H5 0.887 -0.512 -1.550
H6 -0.887 -0.512 -1.550

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.45632.60931.09011.09011.0901
C21.45631.15302.09682.09682.0968
N32.60931.15303.15353.15353.1535
H41.09012.09683.15351.77401.7740
H51.09012.09683.15351.77401.7740
H61.09012.09683.15351.77401.7740

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 110.025
C2 C1 H5 110.025 C2 C1 H6 110.025
H4 C1 H5 108.912 H4 C1 H6 108.912
H5 C1 H6 108.912
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.479      
2 C 0.049      
3 N -0.197      
4 H 0.209      
5 H 0.209      
6 H 0.209      


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 -3.971 3.971
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.389 0.000 0.000
y 0.000 3.389 0.000
z 0.000 0.000 5.835


<r2> (average value of r2) Å2
<r2> 45.095
(<r2>)1/2 6.715