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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: wB97X-D/6-31G

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/6-31G
 hartrees
Energy at 0K-132.664000
Energy at 298.15K-132.666610
HF Energy-132.664000
Nuclear repulsion energy58.192210
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/6-31G
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 3084 3084 3.27 137.48 0.00 0.00
2 A1 2364 2364 8.40 42.42 0.31 0.47
3 A1 1481 1481 13.03 13.88 0.64 0.78
4 A1 951 951 3.28 3.89 0.19 0.33
5 E 3176 3176 1.96 69.37 0.75 0.86
5 E 3176 3176 1.96 69.38 0.75 0.86
6 E 1526 1526 17.66 20.58 0.75 0.86
6 E 1526 1526 17.65 20.59 0.75 0.86
7 E 1112 1112 4.35 0.05 0.75 0.86
7 E 1112 1112 4.35 0.05 0.75 0.86
8 E 379 379 0.00 5.44 0.75 0.86
8 E 379 379 0.00 5.44 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10132.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10132.1 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/6-31G
ABC
5.31118 0.30469 0.30469

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.181
C2 0.000 0.000 0.277
N3 0.000 0.000 1.445
H4 0.000 1.025 -1.562
H5 0.887 -0.512 -1.562
H6 -0.887 -0.512 -1.562

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.45812.62591.09321.09321.0932
C21.45811.16772.10532.10532.1053
N32.62591.16773.17673.17673.1767
H41.09322.10533.17671.77461.7746
H51.09322.10533.17671.77461.7746
H61.09322.10533.17671.77461.7746

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 110.402
C2 C1 H5 110.402 C2 C1 H6 110.402
H4 C1 H5 108.525 H4 C1 H6 108.525
H5 C1 H6 108.525
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.523      
2 C 0.132      
3 N -0.280      
4 H 0.224      
5 H 0.224      
6 H 0.224      


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 -3.952 3.952
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.312 0.000 0.000
y 0.000 -17.312 0.000
z 0.000 0.000 -20.787
Traceless
 xyz
x 1.738 0.000 0.000
y 0.000 1.738 0.000
z 0.000 0.000 -3.475
Polar
3z2-r2-6.950
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 2.472 0.000 0.000
y 0.000 2.472 0.000
z 0.000 0.000 4.990


<r2> (average value of r2) Å2
<r2> 45.449
(<r2>)1/2 6.742