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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: CCSD(T)/6-311G**

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)/6-311G**
 hartrees
Energy at 0K-132.444969
Energy at 298.15K-132.447533
HF Energy-131.956976
Nuclear repulsion energy58.022396
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)/6-311G**
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 3065 2957        
2 A1 2296 2215        
3 A1 1422 1372        
4 A1 922 889        
5 E 3150 3039        
5 E 3150 3039        
6 E 1493 1440        
6 E 1493 1440        
7 E 1067 1029        
7 E 1067 1029        
8 E 364 351        
8 E 364 351        

Unscaled Zero Point Vibrational Energy (zpe) 9925.4 cm-1
Scaled (by 0.9647) Zero Point Vibrational Energy (zpe) 9575.1 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 CCSD(T)/6-311G**
ABC
5.25499 0.30238 0.30238

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-311G**

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.190
C2 0.000 0.000 0.282
N3 0.000 0.000 1.448
H4 0.000 1.030 -1.561
H5 0.892 -0.515 -1.561
H6 -0.892 -0.515 -1.561

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.47202.63811.09461.09461.0946
C21.47201.16622.11082.11082.1108
N32.63811.16623.18013.18013.1801
H41.09462.11083.18011.78411.7841
H51.09462.11083.18011.78411.7841
H61.09462.11083.18011.78411.7841

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 109.781
C2 C1 H5 109.781 C2 C1 H6 109.781
H4 C1 H5 109.159 H4 C1 H6 109.159
H5 C1 H6 109.159
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability