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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: wB97X-D/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 wB97X-D/STO-3G
 hartrees
Energy at 0K-131.045141
Energy at 298.15K-131.047625
HF Energy-131.045141
Nuclear repulsion energy57.151189
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 wB97X-D/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 3341 3341 1.45 50.15 0.00 0.00
2 A1 2454 2454 8.33 15.23 0.24 0.39
3 A1 1558 1558 0.76 10.28 0.68 0.81
4 A1 962 962 1.88 3.56 0.25 0.41
5 E 3505 3505 3.89 31.77 0.75 0.86
5 E 3505 3505 3.89 31.77 0.75 0.86
6 E 1650 1650 8.79 16.60 0.75 0.86
6 E 1650 1650 8.80 16.59 0.75 0.86
7 E 1150 1150 3.62 0.21 0.75 0.86
7 E 1150 1150 3.62 0.21 0.75 0.86
8 E 377 377 0.31 2.00 0.75 0.86
8 E 377 377 0.31 2.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10839.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10839.1 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 wB97X-D/STO-3G
ABC
5.19834 0.29273 0.29273

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/STO-3G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.209
C2 0.000 0.000 0.283
N3 0.000 0.000 1.473
H4 0.000 1.036 -1.586
H5 0.897 -0.518 -1.586
H6 -0.897 -0.518 -1.586

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.49252.68251.10211.10211.1021
C21.49251.19012.13702.13702.1370
N32.68251.19013.22993.22993.2299
H41.10212.13703.22991.79381.7938
H51.10212.13703.22991.79381.7938
H61.10212.13703.22991.79381.7938

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 109.992
C2 C1 H5 109.992 C2 C1 H6 109.992
H4 C1 H5 108.945 H4 C1 H6 108.945
H5 C1 H6 108.945
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.227      
2 C 0.066      
3 N -0.184      
4 H 0.115      
5 H 0.115      
6 H 0.115      


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 -3.026 3.026
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.134 0.000 0.000
y 0.000 -16.134 0.000
z 0.000 0.000 -19.102
Traceless
 xyz
x 1.484 0.000 0.000
y 0.000 1.484 0.000
z 0.000 0.000 -2.968
Polar
3z2-r2-5.936
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 1.211 0.000 0.000
y 0.000 1.211 -0.000
z 0.000 -0.000 3.017


<r2> (average value of r2) Å2
<r2> 45.908
(<r2>)1/2 6.776