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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: B97D3/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B97D3/6-31G
 hartrees
Energy at 0K-132.630541
Energy at 298.15K-132.633095
HF Energy-132.630541
Nuclear repulsion energy57.772505
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 B97D3/6-31G
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 3004 3004 6.12 150.45 0.00 0.00
2 A1 2249 2249 6.69 47.53 0.31 0.47
3 A1 1438 1438 8.38 18.63 0.60 0.75
4 A1 919 919 1.31 3.86 0.19 0.32
5 E 3087 3087 5.32 74.70 0.75 0.86
5 E 3087 3087 5.32 74.71 0.75 0.86
6 E 1493 1493 13.96 20.99 0.75 0.86
6 E 1493 1493 13.95 20.99 0.75 0.86
7 E 1078 1078 3.64 0.08 0.75 0.86
7 E 1078 1078 3.64 0.08 0.75 0.86
8 E 362 362 0.02 4.65 0.75 0.86
8 E 362 362 0.02 4.65 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9824.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9824.6 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 B97D3/6-31G
ABC
5.27099 0.30052 0.30052

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.187
C2 0.000 0.000 0.275
N3 0.000 0.000 1.457
H4 0.000 1.028 -1.575
H5 0.891 -0.514 -1.575
H6 -0.891 -0.514 -1.575

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.46222.64401.09901.09901.0990
C21.46221.18182.11622.11622.1162
N32.64401.18183.20103.20103.2010
H41.09902.11623.20101.78141.7814
H51.09902.11623.20101.78141.7814
H61.09902.11623.20101.78141.7814

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 110.635
C2 C1 H5 110.635 C2 C1 H6 110.635
H4 C1 H5 108.283 H4 C1 H6 108.283
H5 C1 H6 108.283
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.479      
2 C 0.157      
3 N -0.294      
4 H 0.205      
5 H 0.205      
6 H 0.205      


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 -3.841 3.841
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.301 0.000 0.000
y 0.000 -17.301 0.000
z 0.000 0.000 -20.625
Traceless
 xyz
x 1.662 0.000 0.000
y 0.000 1.662 0.000
z 0.000 0.000 -3.324
Polar
3z2-r2-6.649
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 2.515 0.000 0.000
y 0.000 2.515 0.000
z 0.000 0.000 5.247


<r2> (average value of r2) Å2
<r2> 45.874
(<r2>)1/2 6.773