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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: CCSD=FULL/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at CCSD=FULL/daug-cc-pVDZ
 hartrees
Energy at 0K-132.413054
Energy at 298.15K-132.415627
HF Energy-131.941569
Nuclear repulsion energy57.827250
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 CCSD=FULL/daug-cc-pVDZ
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 3071 3071 4.70      
2 A1 2332 2332 1.60      
3 A1 1403 1403 0.22      
4 A1 930 930 2.24      
5 E 3160 3160 2.07      
5 E 3160 3160 2.07      
6 E 1472 1472 8.70      
6 E 1472 1472 8.70      
7 E 1057 1057 0.68      
7 E 1057 1057 0.68      
8 E 367 367 0.68      
8 E 367 367 0.68      

Unscaled Zero Point Vibrational Energy (zpe) 9923.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9923.7 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 CCSD=FULL/daug-cc-pVDZ
ABC
5.21076 0.30039 0.30039

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/daug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.194
C2 0.000 0.000 0.283
N3 0.000 0.000 1.452
H4 0.000 1.034 -1.566
H5 0.896 -0.517 -1.566
H6 -0.896 -0.517 -1.566

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.47712.64671.09921.09921.0992
C21.47711.16962.11862.11862.1186
N32.64671.16963.19083.19083.1908
H41.09922.11863.19081.79171.7917
H51.09922.11863.19081.79171.7917
H61.09922.11863.19081.79171.7917

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 109.766
C2 C1 H5 109.766 C2 C1 H6 109.766
H4 C1 H5 109.175 H4 C1 H6 109.175
H5 C1 H6 109.175
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability