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All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: HF/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/aug-cc-pVTZ
 hartrees
Energy at 0K-169.830190
Energy at 298.15K-169.832782
Nuclear repulsion energy91.167446
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 HF/aug-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 A' 3394 3090 1.89      
2 A' 3346 3046 1.09      
3 A' 3303 3007 1.38      
4 A' 2578 2347 30.21      
5 A' 1820 1657 0.15      
6 A' 1560 1420 10.49      
7 A' 1424 1296 1.90      
8 A' 1193 1086 2.94      
9 A' 923 840 3.62      
10 A' 632 575 0.32      
11 A' 264 241 4.46      
12 A" 1131 1030 22.39      
13 A" 1096 998 41.02      
14 A" 779 710 16.16      
15 A" 393 358 0.49      

Unscaled Zero Point Vibrational Energy (zpe) 11918.1 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 10850.2 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 HF/aug-cc-pVTZ
ABC
1.71510 0.16871 0.15360

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.577 -0.542 0.000
N2 -1.049 -1.567 0.000
C3 0.000 0.777 0.000
H4 -0.698 1.590 0.000
C5 1.301 0.974 0.000
H6 1.997 0.158 0.000
H7 1.702 1.969 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 H7
C11.12791.44002.13612.41422.66793.3910
N21.12792.56783.17673.46123.50044.4796
C31.44002.56781.07201.31612.09082.0776
H42.13613.17671.07202.09233.05242.4296
C52.41423.46121.31612.09231.07261.0723
H62.66793.50042.09083.05241.07261.8349
H73.39104.47962.07762.42961.07231.8349

picture of acrylonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 115.724 C1 C3 C5 122.250
N2 C1 C3 178.917 C3 C5 H6 121.831
C3 C5 H7 120.542 H4 C3 C5 122.026
H6 C5 H7 117.627
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.387      
2 N -0.588      
3 C 0.036      
4 H 0.411      
5 C -1.095      
6 H 0.344      
7 H 0.505      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.222 3.712 0.000 4.326
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.446 -2.892 0.000
y -2.892 -26.285 0.000
z 0.000 0.000 -25.189
Traceless
 xyz
x 3.291 -2.892 0.000
y -2.892 -2.468 0.000
z 0.000 0.000 -0.823
Polar
3z2-r2-1.647
x2-y23.839
xy-2.892
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.145 1.778 0.000
y 1.778 6.708 0.000
z 0.000 0.000 4.156


<r2> (average value of r2) Å2
<r2> 77.317
(<r2>)1/2 8.793