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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: CCSD(T)=FULL/Def2TZVPP

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(T)=FULL/Def2TZVPP
 hartrees
Energy at 0K-132.589802
Energy at 298.15K-132.592368
HF Energy-131.977428
Nuclear repulsion energy58.379120
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(T)=FULL/Def2TZVPP
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 3069 3069        
2 A1 2311 2311        
3 A1 1421 1421        
4 A1 926 926        
5 E 3152 3152        
5 E 3152 3152        
6 E 1489 1489        
6 E 1489 1489        
7 E 1065 1065        
7 E 1064 1064        
8 E 366 366        
8 E 366 366        

Unscaled Zero Point Vibrational Energy (zpe) 9934.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9934.0 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(T)=FULL/Def2TZVPP
ABC
5.32820 0.30598 0.30598

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/Def2TZVPP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.184
C2 0.000 0.000 0.280
N3 0.000 0.000 1.439
H4 0.000 1.023 -1.552
H5 0.886 -0.511 -1.552
H6 -0.886 -0.511 -1.552

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.46382.62271.08721.08721.0872
C21.46381.15892.09822.09822.0982
N32.62271.15893.16093.16093.1609
H41.08722.09823.16091.77181.7718
H51.08722.09823.16091.77181.7718
H61.08722.09823.16091.77181.7718

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 109.791
C2 C1 H5 109.791 C2 C1 H6 109.791
H4 C1 H5 109.149 H4 C1 H6 109.149
H5 C1 H6 109.149
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability