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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: MP3=FULL/aug-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 MP3=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-132.559980
Energy at 298.15K-132.562615
HF Energy-131.976033
Nuclear repulsion energy58.886097
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/aug-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 3120 3120 1.84      
2 A1 2459 2459 7.10      
3 A1 1435 1435 1.22      
4 A1 958 958 1.91      
5 E 3188 3188 0.39      
5 E 3188 3188 0.39      
6 E 1511 1511 10.26      
6 E 1511 1511 10.26      
7 E 1084 1084 1.54      
7 E 1084 1084 1.54      
8 E 390 390 0.89      
8 E 390 390 0.89      

Unscaled Zero Point Vibrational Energy (zpe) 10158.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10158.9 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 MP3=FULL/aug-cc-pVTZ
ABC
5.36870 0.31159 0.31159

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.172
C2 0.000 0.000 0.281
N3 0.000 0.000 1.425
H4 0.000 1.019 -1.542
H5 0.883 -0.510 -1.542
H6 -0.883 -0.510 -1.542

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.45272.59691.08421.08421.0842
C21.45271.14422.08822.08822.0882
N32.59691.14423.13703.13703.1370
H41.08422.08823.13701.76511.7651
H51.08422.08823.13701.76511.7651
H61.08422.08823.13701.76511.7651

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 109.955
C2 C1 H5 109.955 C2 C1 H6 109.955
H4 C1 H5 108.983 H4 C1 H6 108.983
H5 C1 H6 108.983
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability