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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: HSEh1PBE/daug-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 HSEh1PBE/daug-cc-pVTZ
 hartrees
Energy at 0K-132.651765
Energy at 298.15K-132.654368
HF Energy-132.651765
Nuclear repulsion energy58.771354
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/daug-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 3067 3067 1.87 194.38 0.00 0.01
2 A1 2388 2388 12.68 80.67 0.15 0.25
3 A1 1401 1401 2.90 5.65 0.40 0.57
4 A1 947 947 0.97 5.41 0.04 0.08
5 E 3146 3146 0.19 55.98 0.75 0.86
5 E 3146 3146 0.19 56.08 0.75 0.86
6 E 1466 1466 11.49 5.13 0.75 0.86
6 E 1466 1466 11.49 5.08 0.75 0.86
7 E 1054 1054 2.37 0.11 0.75 0.86
7 E 1054 1054 2.37 0.11 0.75 0.86
8 E 386 386 0.53 1.30 0.75 0.86
8 E 386 386 0.53 1.30 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9954.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9954.2 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/daug-cc-pVTZ
ABC
5.32204 0.31105 0.31105

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/daug-cc-pVTZ

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 1.427
H4 0.000 1.024 -1.545
H5 0.886 -0.512 -1.545
H6 -0.886 -0.512 -1.545

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.44962.59821.08981.08981.0898
C21.44961.14862.09142.09142.0914
N32.59821.14863.14373.14373.1437
H41.08982.09143.14371.77281.7728
H51.08982.09143.14371.77281.7728
H61.08982.09143.14371.77281.7728

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 110.082
C2 C1 H5 110.082 C2 C1 H6 110.082
H4 C1 H5 108.853 H4 C1 H6 108.853
H5 C1 H6 108.853
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.066      
2 C -0.170      
3 N -0.781      
4 H 0.339      
5 H 0.339      
6 H 0.339      


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 -4.048 4.048
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.583 0.000 0.000
y 0.000 -17.583 0.000
z 0.000 0.000 -20.772
Traceless
 xyz
x 1.595 0.000 0.000
y 0.000 1.595 0.000
z 0.000 0.000 -3.189
Polar
3z2-r2-6.379
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 3.601 0.000 0.000
y 0.000 3.601 0.000
z 0.000 0.000 5.924


<r2> (average value of r2) Å2
<r2> 44.903
(<r2>)1/2 6.701