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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: HSEh1PBE/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at HSEh1PBE/6-311G*
 hartrees
Energy at 0K-132.632669
Energy at 298.15K-132.635296
HF Energy-132.632669
Nuclear repulsion energy58.677423
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 HSEh1PBE/6-311G*
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 3075 2951 3.32 144.23 0.00 0.00
2 A1 2398 2301 10.23 55.84 0.27 0.43
3 A1 1422 1365 5.93 9.05 0.66 0.80
4 A1 953 914 1.66 3.43 0.15 0.26
5 E 3155 3027 1.76 66.89 0.75 0.86
5 E 3155 3027 1.76 66.89 0.75 0.86
6 E 1488 1428 13.27 11.33 0.75 0.86
6 E 1488 1428 13.27 11.33 0.75 0.86
7 E 1068 1025 3.83 0.01 0.75 0.86
7 E 1068 1025 3.83 0.01 0.75 0.86
8 E 394 378 0.21 3.73 0.75 0.86
8 E 394 378 0.21 3.73 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10029.3 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 9624.1 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 HSEh1PBE/6-311G*
ABC
5.32324 0.31006 0.31006

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.171
C2 0.000 0.000 0.279
N3 0.000 0.000 1.430
H4 0.000 1.023 -1.551
H5 0.886 -0.512 -1.551
H6 -0.886 -0.512 -1.551

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.45022.60141.09161.09161.0916
C21.45021.15122.09672.09672.0967
N32.60141.15123.15183.15183.1518
H41.09162.09673.15181.77261.7726
H51.09162.09673.15181.77261.7726
H61.09162.09673.15181.77261.7726

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 110.355
C2 C1 H5 110.355 C2 C1 H6 110.355
H4 C1 H5 108.573 H4 C1 H6 108.573
H5 C1 H6 108.573
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.690      
2 C 0.129      
3 N -0.271      
4 H 0.277      
5 H 0.277      
6 H 0.277      


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 -3.898 3.898
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.455 0.000 0.000
y 0.000 -17.455 0.000
z 0.000 0.000 -20.547
Traceless
 xyz
x 1.546 0.000 0.000
y 0.000 1.546 0.000
z 0.000 0.000 -3.092
Polar
3z2-r2-6.184
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 2.760 0.000 0.000
y 0.000 2.760 0.000
z 0.000 0.000 5.223


<r2> (average value of r2) Å2
<r2> 44.919
(<r2>)1/2 6.702