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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: B97D3/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 B97D3/cc-pVTZ
 hartrees
Energy at 0K-132.716538
Energy at 298.15K-132.719093
HF Energy-132.716538
Nuclear repulsion energy58.393348
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 B97D3/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 2998 2956 4.59 178.65 0.00 0.01
2 A1 2290 2258 7.86 65.77 0.23 0.38
3 A1 1379 1360 2.06 8.42 0.48 0.65
4 A1 912 899 0.57 4.20 0.09 0.16
5 E 3069 3026 2.35 65.35 0.75 0.86
5 E 3069 3026 2.35 65.32 0.75 0.86
6 E 1445 1425 9.42 7.88 0.75 0.86
6 E 1445 1425 9.42 7.88 0.75 0.86
7 E 1036 1021 1.88 0.01 0.75 0.86
7 E 1036 1021 1.88 0.01 0.75 0.86
8 E 366 361 0.19 2.20 0.75 0.86
8 E 366 361 0.19 2.20 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9705.4 cm-1
Scaled (by 0.986) Zero Point Vibrational Energy (zpe) 9569.5 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 B97D3/cc-pVTZ
ABC
5.28969 0.30698 0.30698

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/cc-pVTZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.178
C2 0.000 0.000 0.279
N3 0.000 0.000 1.438
H4 0.000 1.027 -1.556
H5 0.889 -0.513 -1.556
H6 -0.889 -0.513 -1.556

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.45662.61561.09401.09401.0940
C21.45661.15912.10222.10222.1022
N32.61561.15913.16473.16473.1647
H41.09402.10223.16471.77821.7782
H51.09402.10223.16471.77821.7782
H61.09402.10223.16471.77821.7782

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 110.206
C2 C1 H5 110.206 C2 C1 H6 110.206
H4 C1 H5 108.727 H4 C1 H6 108.727
H5 C1 H6 108.727
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.223      
2 C -0.099      
3 N -0.039      
4 H 0.120      
5 H 0.120      
6 H 0.120      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -3.886 3.886
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.498 0.000 0.000
y 0.000 -17.498 0.000
z 0.000 0.000 -20.521
Traceless
 xyz
x 1.511 0.000 0.000
y 0.000 1.511 0.000
z 0.000 0.000 -3.023
Polar
3z2-r2-6.046
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.223 0.000 0.000
y 0.000 3.223 0.000
z 0.000 0.000 5.767


<r2> (average value of r2) Å2
<r2> 45.242
(<r2>)1/2 6.726