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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: wB97X-D/CEP-121G

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/CEP-121G
 hartrees
Energy at 0K-22.959584
Energy at 298.15K-22.962186
HF Energy-22.959584
Nuclear repulsion energy30.911065
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/CEP-121G
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 3045 3045 10.38 150.68 0.00 0.00
2 A1 2288 2288 10.06 52.58 0.23 0.37
3 A1 1455 1455 10.61 8.35 0.71 0.83
4 A1 929 929 4.41 8.51 0.15 0.26
5 E 3154 3154 5.89 58.78 0.75 0.86
5 E 3154 3154 5.92 58.81 0.75 0.86
6 E 1511 1511 18.52 14.93 0.75 0.86
6 E 1511 1511 18.51 14.98 0.75 0.86
7 E 1090 1090 2.10 0.18 0.75 0.86
7 E 1090 1090 2.10 0.18 0.75 0.86
8 E 374 374 0.05 6.12 0.75 0.86
8 E 374 374 0.06 6.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9987.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9987.5 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 wB97X-D/CEP-121G
ABC
5.28649 0.29950 0.29950

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-121G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.194
C2 0.000 0.000 0.280
N3 0.000 0.000 1.457
H4 0.000 1.027 -1.571
H5 0.889 -0.513 -1.571
H6 -0.889 -0.513 -1.571

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.47412.65081.09391.09391.0939
C21.47411.17662.11672.11672.1167
N32.65081.17663.19703.19703.1970
H41.09392.11673.19701.77881.7788
H51.09392.11673.19701.77881.7788
H61.09392.11673.19701.77881.7788

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 110.148
C2 C1 H5 110.148 C2 C1 H6 110.148
H4 C1 H5 108.786 H4 C1 H6 108.786
H5 C1 H6 108.786
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.586      
2 C -0.238      
3 N 0.179      
4 H 0.215      
5 H 0.215      
6 H 0.215      


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 -4.065 4.065
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.482 0.000 0.000
y 0.000 -17.482 0.000
z 0.000 0.000 -21.021
Traceless
 xyz
x 1.770 0.000 0.000
y 0.000 1.770 0.000
z 0.000 0.000 -3.539
Polar
3z2-r2-7.079
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 2.782 0.000 0.000
y 0.000 2.784 0.000
z 0.000 0.000 5.362


<r2> (average value of r2) Å2
<r2> 38.850
(<r2>)1/2 6.233