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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: BLYP/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 BLYP/TZVP
 hartrees
Energy at 0K-132.757613
Energy at 298.15K-132.760165
HF Energy-132.757613
Nuclear repulsion energy58.182762
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 BLYP/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 2976 2968 4.11 181.38 0.00 0.01
2 A1 2273 2267 7.34 67.46 0.23 0.38
3 A1 1381 1377 3.36 9.96 0.56 0.72
4 A1 901 898 0.83 3.44 0.10 0.18
5 E 3038 3030 2.01 69.08 0.75 0.86
5 E 3038 3030 2.01 69.08 0.75 0.86
6 E 1442 1438 11.05 10.45 0.75 0.86
6 E 1442 1438 11.05 10.45 0.75 0.86
7 E 1037 1034 1.82 0.03 0.75 0.86
7 E 1037 1034 1.82 0.03 0.75 0.86
8 E 367 366 0.07 4.36 0.75 0.86
8 E 367 366 0.07 4.36 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9648.3 cm-1
Scaled (by 0.9975) 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 BLYP/TZVP
ABC
5.26284 0.30465 0.30465

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.182
C2 0.000 0.000 0.280
N3 0.000 0.000 1.443
H4 0.000 1.029 -1.563
H5 0.891 -0.515 -1.563
H6 -0.891 -0.515 -1.563

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.46232.62521.09761.09761.0976
C21.46231.16292.11142.11142.1114
N32.62521.16293.17783.17783.1778
H41.09762.11143.17781.78281.7828
H51.09762.11143.17781.78281.7828
H61.09762.11143.17781.78281.7828

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 110.323
C2 C1 H5 110.323 C2 C1 H6 110.323
H4 C1 H5 108.606 H4 C1 H6 108.606
H5 C1 H6 108.606
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.420      
2 C 0.036      
3 N -0.108      
4 H 0.164      
5 H 0.164      
6 H 0.164      


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 -3.942 3.942
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.843 0.000 0.000
y 0.000 -17.843 0.000
z 0.000 0.000 -21.148
Traceless
 xyz
x 1.652 0.000 0.000
y 0.000 1.652 0.000
z 0.000 0.000 -3.305
Polar
3z2-r2-6.609
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 3.128 0.000 0.000
y 0.000 3.128 0.000
z 0.000 0.000 5.853


<r2> (average value of r2) Å2
<r2> 45.776
(<r2>)1/2 6.766