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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: MP3=FULL/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 MP3=FULL/cc-pVDZ
 hartrees
Energy at 0K-132.381263
Energy at 298.15K-132.383860
HF Energy-131.936740
Nuclear repulsion energy58.042009
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 MP3=FULL/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 3120 2933 3.92      
2 A1 2437 2291 2.96      
3 A1 1422 1337 0.61      
4 A1 954 897 2.61      
5 E 3216 3024 0.94      
5 E 3216 3024 0.94      
6 E 1484 1395 10.05      
6 E 1484 1395 10.05      
7 E 1067 1003 1.50      
7 E 1067 1003 1.50      
8 E 377 354 0.28      
8 E 377 354 0.28      

Unscaled Zero Point Vibrational Energy (zpe) 10108.2 cm-1
Scaled (by 0.9403) Zero Point Vibrational Energy (zpe) 9504.7 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 MP3=FULL/cc-pVDZ
ABC
5.21755 0.30283 0.30283

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.189
C2 0.000 0.000 0.283
N3 0.000 0.000 1.446
H4 0.000 1.034 -1.563
H5 0.895 -0.517 -1.563
H6 -0.895 -0.517 -1.563

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.47222.63451.09941.09941.0994
C21.47221.16242.11622.11622.1162
N32.63451.16243.18153.18153.1815
H41.09942.11623.18151.79051.7905
H51.09942.11623.18151.79051.7905
H61.09942.11623.18151.79051.7905

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 109.904
C2 C1 H5 109.904 C2 C1 H6 109.904
H4 C1 H5 109.035 H4 C1 H6 109.035
H5 C1 H6 109.035
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability