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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: B97D3/aug-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/aug-cc-pVTZ
 hartrees
Energy at 0K-132.718442
Energy at 298.15K-132.720999
HF Energy-132.718442
Nuclear repulsion energy58.404416
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/aug-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 2953 4.79 205.91 0.01 0.01
2 A1 2287 2252 9.00 86.00 0.15 0.27
3 A1 1378 1357 1.66 7.73 0.38 0.55
4 A1 912 898 0.54 5.40 0.05 0.09
5 E 3069 3022 1.74 62.76 0.75 0.86
5 E 3069 3022 1.74 62.73 0.75 0.86
6 E 1444 1422 9.82 5.50 0.75 0.86
6 E 1444 1422 9.82 5.46 0.75 0.86
7 E 1036 1020 1.56 0.09 0.75 0.86
7 E 1036 1020 1.56 0.09 0.75 0.86
8 E 367 361 0.33 1.27 0.75 0.86
8 E 367 361 0.33 1.28 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9703.6 cm-1
Scaled (by 0.9847) Zero Point Vibrational Energy (zpe) 9555.1 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 B97D3/aug-cc-pVTZ
ABC
5.28957 0.30710 0.30710

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/aug-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 1.437
H4 0.000 1.027 -1.555
H5 0.889 -0.513 -1.555
H6 -0.889 -0.513 -1.555

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.45642.61521.09391.09391.0939
C21.45641.15882.10172.10172.1017
N32.61521.15883.16393.16393.1639
H41.09392.10173.16391.77831.7783
H51.09392.10173.16391.77831.7783
H61.09392.10173.16391.77831.7783

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 110.187
C2 C1 H5 110.187 C2 C1 H6 110.187
H4 C1 H5 108.746 H4 C1 H6 108.746
H5 C1 H6 108.746
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.247      
2 C 0.131      
3 N -0.399      
4 H 0.172      
5 H 0.172      
6 H 0.172      


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 -3.988 3.988
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.633 0.000 0.000
y 0.000 -17.633 0.000
z 0.000 0.000 -20.856
Traceless
 xyz
x 1.612 0.000 0.000
y 0.000 1.612 0.000
z 0.000 0.000 -3.223
Polar
3z2-r2-6.447
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 3.713 0.000 0.000
y 0.000 3.713 0.000
z 0.000 0.000 6.219


<r2> (average value of r2) Å2
<r2> 45.354
(<r2>)1/2 6.735