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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: TPSSh/cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-132.808044
Energy at 298.15K-132.810634
HF Energy-132.808044
Nuclear repulsion energy58.536472
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-pVTZ
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 3045 2948 3.30 172.78 0.00 0.00
2 A1 2341 2266 8.36 61.71 0.22 0.37
3 A1 1413 1368 1.54 7.10 0.48 0.65
4 A1 924 895 1.16 4.29 0.09 0.17
5 E 3117 3018 1.79 62.53 0.75 0.86
5 E 3117 3018 1.79 62.55 0.75 0.86
6 E 1484 1437 9.59 7.60 0.75 0.86
6 E 1484 1437 9.59 7.60 0.75 0.86
7 E 1060 1026 1.37 0.02 0.75 0.86
7 E 1060 1026 1.37 0.02 0.75 0.86
8 E 376 364 0.25 2.34 0.75 0.86
8 E 376 364 0.25 2.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9897.7 cm-1
Scaled (by 0.9683) Zero Point Vibrational Energy (zpe) 9583.9 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-pVTZ
ABC
5.30822 0.30827 0.30827

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

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 1.434
H4 0.000 1.025 -1.551
H5 0.888 -0.512 -1.551
H6 -0.888 -0.512 -1.551

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.45642.61071.09091.09091.0909
C21.45641.15432.09762.09762.0976
N32.61071.15433.15553.15553.1555
H41.09092.09763.15551.77511.7751
H51.09092.09763.15551.77511.7751
H61.09092.09763.15551.77511.7751

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 110.034
C2 C1 H5 110.034 C2 C1 H6 110.034
H4 C1 H5 108.902 H4 C1 H6 108.902
H5 C1 H6 108.902
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.197      
2 C -0.083      
3 N -0.066      
4 H 0.115      
5 H 0.115      
6 H 0.115      


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 -3.920 3.920
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 3.170 0.000 0.000
y 0.000 3.170 0.000
z 0.000 0.000 5.631


<r2> (average value of r2) Å2
<r2> 45.077
(<r2>)1/2 6.714