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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: B2PLYP=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 B2PLYP=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-132.712674
Energy at 298.15K-132.715270
HF Energy-132.524110
Nuclear repulsion energy58.586992
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/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 3079 2954 2.74 190.84 0.00 0.01
2 A1 2306 2213 4.52 68.87 0.15 0.26
3 A1 1423 1365 1.31 4.92 0.40 0.57
4 A1 933 895 1.25 5.72 0.06 0.11
5 E 3152 3024 0.63 55.03 0.75 0.86
5 E 3152 3024 0.63 55.03 0.75 0.86
6 E 1493 1432 10.33 5.04 0.75 0.86
6 E 1493 1432 10.33 5.04 0.75 0.86
7 E 1071 1027 1.58 0.09 0.75 0.86
7 E 1071 1027 1.58 0.09 0.75 0.86
8 E 376 361 0.63 1.35 0.75 0.86
8 E 376 361 0.63 1.35 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9961.2 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 9556.8 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/aug-cc-pVTZ
ABC
5.35118 0.30861 0.30861

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/aug-cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.176
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
C11.45432.60991.08681.08681.0868
C21.45431.15562.09312.09312.0931
N32.60991.15563.15273.15273.1527
H41.08682.09313.15271.76801.7680
H51.08682.09313.15271.76801.7680
H61.08682.09313.15271.76801.7680

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 110.072
C2 C1 H5 110.072 C2 C1 H6 110.072
H4 C1 H5 108.864 H4 C1 H6 108.864
H5 C1 H6 108.864
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability