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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: B2PLYP=FULL/STO-3G

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/STO-3G
 hartrees
Energy at 0K-130.875739
Energy at 298.15K-130.878196
HF Energy-130.798255
Nuclear repulsion energy56.770848
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/STO-3G
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 3349 3349 0.48 47.79 0.00 0.00
2 A1 2311 2311 14.72 10.79 0.23 0.37
3 A1 1569 1569 0.07 9.54 0.69 0.82
4 A1 947 947 1.28 4.28 0.26 0.41
5 E 3515 3515 1.85 31.20 0.75 0.86
5 E 3515 3515 1.85 31.20 0.75 0.86
6 E 1667 1667 6.93 16.64 0.75 0.86
6 E 1667 1667 6.93 16.64 0.75 0.86
7 E 1157 1157 2.38 0.28 0.75 0.86
7 E 1157 1157 2.38 0.28 0.75 0.86
8 E 364 364 0.33 1.88 0.75 0.86
8 E 364 364 0.33 1.88 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10791.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10791.6 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/STO-3G
ABC
5.19712 0.28852 0.28852

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/STO-3G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.218
C2 0.000 0.000 0.282
N3 0.000 0.000 1.486
H4 0.000 1.036 -1.596
H5 0.897 -0.518 -1.596
H6 -0.897 -0.518 -1.596

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.49962.70351.10261.10261.1026
C21.49961.20392.14432.14432.1443
N32.70351.20393.25083.25083.2508
H41.10262.14433.25081.79401.7940
H51.10262.14433.25081.79401.7940
H61.10262.14433.25081.79401.7940

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 110.048
C2 C1 H5 110.048 C2 C1 H6 110.048
H4 C1 H5 108.889 H4 C1 H6 108.889
H5 C1 H6 108.889
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability