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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: wB97X-D/TZVP

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/TZVP
 hartrees
Energy at 0K-132.751504
Energy at 298.15K-132.754116
HF Energy-132.751504
Nuclear repulsion energy58.717479
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/TZVP
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 3079 2940 2.56 167.74 0.00 0.00
2 A1 2412 2304 10.83 61.17 0.23 0.38
3 A1 1421 1357 4.34 6.42 0.64 0.78
4 A1 938 896 1.82 3.47 0.10 0.19
5 E 3163 3021 0.64 61.10 0.75 0.86
5 E 3163 3021 0.64 61.09 0.75 0.86
6 E 1483 1416 13.24 9.53 0.75 0.86
6 E 1483 1416 13.22 9.54 0.75 0.86
7 E 1068 1020 2.30 0.01 0.75 0.86
7 E 1068 1020 2.30 0.01 0.75 0.86
8 E 385 368 0.26 4.97 0.75 0.86
8 E 385 368 0.26 4.96 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 10025.1 cm-1
Scaled (by 0.955) Zero Point Vibrational Energy (zpe) 9573.9 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/TZVP
ABC
5.31479 0.31014 0.31014

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.174
C2 0.000 0.000 0.281
N3 0.000 0.000 1.428
H4 0.000 1.024 -1.546
H5 0.887 -0.512 -1.546
H6 -0.887 -0.512 -1.546

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.45502.60251.08971.08971.0897
C21.45501.14752.09452.09452.0945
N32.60251.14753.14593.14593.1459
H41.08972.09453.14591.77401.7740
H51.08972.09453.14591.77401.7740
H61.08972.09453.14591.77401.7740

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 109.963
C2 C1 H5 109.963 C2 C1 H6 109.963
H4 C1 H5 108.975 H4 C1 H6 108.975
H5 C1 H6 108.975
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.409      
2 C 0.046      
3 N -0.141      
4 H 0.168      
5 H 0.168      
6 H 0.168      


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 -4.021 4.021
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.502 0.000 0.000
y 0.000 -17.502 0.000
z 0.000 0.000 -20.845
Traceless
 xyz
x 1.672 0.000 0.000
y 0.000 1.672 0.000
z 0.000 0.000 -3.343
Polar
3z2-r2-6.687
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 2.985 0.000 0.000
y 0.000 2.985 -0.000
z 0.000 -0.000 5.507


<r2> (average value of r2) Å2
<r2> 44.973
(<r2>)1/2 6.706