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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: B2PLYP=FULLultrafine/TZVP

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/TZVP
 hartrees
Energy at 0K-132.685438
Energy at 298.15K 
HF Energy-132.520046
Nuclear repulsion energy58.501129
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/TZVP
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 3083 3083 3.57 167.70 0.00 0.00
2 A1 2314 2314 3.05 52.33 0.22 0.37
3 A1 1433 1433 2.43 6.41 0.61 0.76
4 A1 931 931 1.72 3.83 0.11 0.20
5 E 3162 3162 1.30 61.53 0.75 0.86
5 E 3162 3162 1.30 61.53 0.75 0.86
6 E 1495 1495 11.67 9.63 0.75 0.86
6 E 1495 1495 11.67 9.63 0.75 0.86
7 E 1075 1075 1.34 0.04 0.75 0.86
7 E 1075 1075 1.34 0.04 0.75 0.86
8 E 372 372 0.25 4.53 0.75 0.86
8 E 372 372 0.25 4.53 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9983.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9983.1 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/TZVP
ABC
5.33536 0.30769 0.30769

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/TZVP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.178
C2 0.000 0.000 0.279
N3 0.000 0.000 1.436
H4 0.000 1.022 -1.551
H5 0.885 -0.511 -1.551
H6 -0.885 -0.511 -1.551

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.45662.61381.08831.08831.0883
C21.45661.15722.09602.09602.0960
N32.61381.15723.15713.15713.1571
H41.08832.09603.15711.77061.7706
H51.08832.09603.15711.77061.7706
H61.08832.09603.15711.77061.7706

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 110.056
C2 C1 H5 110.056 C2 C1 H6 110.056
H4 C1 H5 108.880 H4 C1 H6 108.880
H5 C1 H6 108.880
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability