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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: B2PLYP=FULLultrafine/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B2PLYP=FULLultrafine/6-31G
 hartrees
Energy at 0K-132.530579
Energy at 298.15K 
HF Energy-132.424366
Nuclear repulsion energy57.808446
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 B2PLYP=FULLultrafine/6-31G
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 3082 3082 4.22 133.98 0.00 0.00
2 A1 2247 2247 1.33 34.01 0.29 0.45
3 A1 1488 1488 7.39 14.61 0.63 0.77
4 A1 930 930 2.79 4.47 0.20 0.33
5 E 3164 3164 3.41 67.74 0.75 0.86
5 E 3164 3164 3.41 67.74 0.75 0.86
6 E 1539 1539 14.08 20.99 0.75 0.86
6 E 1539 1539 14.08 20.99 0.75 0.86
7 E 1114 1114 2.70 0.17 0.75 0.86
7 E 1114 1114 2.70 0.17 0.75 0.86
8 E 351 351 0.01 4.89 0.75 0.86
8 E 351 351 0.01 4.89 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10041.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10041.5 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 B2PLYP=FULLultrafine/6-31G
ABC
5.31331 0.30034 0.30034

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G

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 0.276
N3 0.000 0.000 1.457
H4 0.000 1.024 -1.572
H5 0.887 -0.512 -1.572
H6 -0.887 -0.512 -1.572

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.46492.64601.09371.09371.0937
C21.46491.18122.11292.11292.1129
N32.64601.18123.19763.19763.1976
H41.09372.11293.19761.77431.7743
H51.09372.11293.19761.77431.7743
H61.09372.11293.19761.77431.7743

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 110.504
C2 C1 H5 110.504 C2 C1 H6 110.504
H4 C1 H5 108.419 H4 C1 H6 108.419
H5 C1 H6 108.419
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability