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All results from a given calculation for CH3CN (Acetonitrile)

using model chemistry: B1B95/daug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at B1B95/daug-cc-pVDZ
 hartrees
Energy at 0K-132.707964
Energy at 298.15K-132.710552
HF Energy-132.707964
Nuclear repulsion energy58.500358
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 B1B95/daug-cc-pVDZ
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 3080 3080 2.55 200.19 0.00 0.01
2 A1 2391 2391 11.99 78.35 0.14 0.25
3 A1 1375 1375 2.10 5.39 0.47 0.64
4 A1 952 952 1.31 6.01 0.05 0.10
5 E 3172 3172 0.47 57.38 0.75 0.86
5 E 3172 3172 0.47 57.40 0.75 0.86
6 E 1443 1443 10.94 5.28 0.75 0.86
6 E 1443 1443 10.94 5.28 0.75 0.86
7 E 1037 1037 2.03 0.08 0.75 0.86
7 E 1037 1037 2.03 0.08 0.75 0.86
8 E 376 376 0.46 1.34 0.75 0.86
8 E 376 376 0.46 1.34 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9926.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9926.5 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 B1B95/daug-cc-pVDZ
ABC
5.27747 0.30838 0.30838

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/daug-cc-pVDZ

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.176
C2 0.000 0.000 0.277
N3 0.000 0.000 1.434
H4 0.000 1.028 -1.549
H5 0.890 -0.514 -1.549
H6 -0.890 -0.514 -1.549

Atom - Atom Distances (Å)
  C1 C2 N3 H4 H5 H6
C11.45362.61051.09341.09341.0934
C21.45361.15692.09592.09592.0959
N32.61051.15693.15553.15553.1555
H41.09342.09593.15551.78031.7803
H51.09342.09593.15551.78031.7803
H61.09342.09593.15551.78031.7803

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 109.941
C2 C1 H5 109.941 C2 C1 H6 109.941
H4 C1 H5 108.997 H4 C1 H6 108.997
H5 C1 H6 108.997
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.774      
2 C -0.111      
3 N -0.189      
4 H -0.158      
5 H -0.158      
6 H -0.158      


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 -4.032 4.032
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.611 0.000 0.000
y 0.000 -17.611 0.000
z 0.000 0.000 -20.777
Traceless
 xyz
x 1.583 0.000 0.000
y 0.000 1.583 0.000
z 0.000 0.000 -3.166
Polar
3z2-r2-6.332
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 3.624 0.000 0.000
y 0.000 3.624 0.000
z 0.000 0.000 5.976


<r2> (average value of r2) Å2
<r2> 45.190
(<r2>)1/2 6.722