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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: B2PLYP=FULL/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 B2PLYP=FULL/cc-pVTZ
 hartrees
Energy at 0K-132.706552
Energy at 298.15K-132.709149
HF Energy-132.522453
Nuclear repulsion energy58.571942
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=FULL/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 3080 2944 2.79 165.13 0.00 0.00
2 A1 2309 2207 3.41 51.78 0.22 0.36
3 A1 1426 1363 1.75 5.44 0.51 0.67
4 A1 932 891 1.27 4.43 0.10 0.18
5 E 3154 3014 0.92 58.87 0.75 0.86
5 E 3154 3014 0.92 58.87 0.75 0.86
6 E 1494 1428 10.06 7.26 0.75 0.86
6 E 1494 1428 10.06 7.26 0.75 0.86
7 E 1070 1023 1.75 0.01 0.75 0.86
7 E 1070 1023 1.75 0.01 0.75 0.86
8 E 377 360 0.39 2.27 0.75 0.86
8 E 377 360 0.39 2.27 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9967.2 cm-1
Scaled (by 0.9558) Zero Point Vibrational Energy (zpe) 9526.7 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 B2PLYP=FULL/cc-pVTZ
ABC
5.35358 0.30839 0.30839

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/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 0.278
N3 0.000 0.000 1.434
H4 0.000 1.021 -1.549
H5 0.884 -0.510 -1.549
H6 -0.884 -0.510 -1.549

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.45492.61091.08651.08651.0865
C21.45491.15602.09332.09332.0933
N32.61091.15603.15343.15343.1534
H41.08652.09333.15341.76761.7676
H51.08652.09333.15341.76761.7676
H61.08652.09333.15341.76761.7676

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 110.066
C2 C1 H5 110.066 C2 C1 H6 110.066
H4 C1 H5 108.870 H4 C1 H6 108.870
H5 C1 H6 108.870
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability