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All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: PBEPBE/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 PBEPBE/cc-pVTZ
 hartrees
Energy at 0K-170.674401
Energy at 298.15K-170.676710
Nuclear repulsion energy89.842526
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 PBEPBE/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' 3183 3161 1.36      
2 A' 3096 3075 0.84      
3 A' 3088 3067 0.38      
4 A' 2247 2232 3.91      
5 A' 1624 1613 1.50      
6 A' 1399 1389 7.03      
7 A' 1276 1267 0.07      
8 A' 1076 1069 2.40      
9 A' 868 862 0.85      
10 A' 563 559 0.02      
11 A' 227 226 2.35      
12 A" 973 966 17.83      
13 A" 943 936 36.02      
14 A" 690 686 9.90      
15 A" 336 334 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 10794.7 cm-1
Scaled (by 0.9931) Zero Point Vibrational Energy (zpe) 10720.2 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 PBEPBE/cc-pVTZ
ABC
1.69829 0.16416 0.14969

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.577 -0.533 0.000
N2 -1.075 -1.588 0.000
C3 0.000 0.769 0.000
H4 -0.708 1.601 0.000
C5 1.323 0.989 0.000
H6 2.038 0.167 0.000
H7 1.715 2.005 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 H7
C11.16651.42422.13812.43442.70743.4199
N21.16652.59053.20993.52003.57404.5490
C31.42422.59051.09241.34112.12542.1141
H42.13813.20991.09242.12123.09812.4567
C52.43443.52001.34112.12121.08951.0891
H62.70743.57402.12543.09811.08951.8659
H73.41994.54902.11412.45671.08911.8659

picture of acrylonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 115.706 C1 C3 C5 123.331
N2 C1 C3 178.618 C3 C5 H6 121.608
C3 C5 H7 120.548 H4 C3 C5 120.963
H6 C5 H7 117.844
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.054      
2 N -0.066      
3 C -0.078      
4 H 0.140      
5 C -0.199      
6 H 0.129      
7 H 0.129      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.912 3.321 0.000 3.832
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.533 -2.686 0.000
y -2.686 -25.581 0.000
z 0.000 0.000 -24.742
Traceless
 xyz
x 2.629 -2.686 0.000
y -2.686 -1.944 0.000
z 0.000 0.000 -0.685
Polar
3z2-r2-1.369
x2-y23.048
xy-2.686
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.090 2.111 0.000
y 2.111 7.165 0.000
z 0.000 0.000 3.354


<r2> (average value of r2) Å2
<r2> 78.737
(<r2>)1/2 8.873