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All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: B3PW91/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 B3PW91/cc-pVTZ
 hartrees
Energy at 0K-170.820039
Energy at 298.15K-170.822433
Nuclear repulsion energy90.454609
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 B3PW91/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' 3257 3132 0.90      
2 A' 3178 3056 0.75      
3 A' 3161 3040 0.38      
4 A' 2344 2254 7.88      
5 A' 1684 1620 1.06      
6 A' 1443 1387 8.28      
7 A' 1317 1266 0.25      
8 A' 1109 1066 2.78      
9 A' 887 853 1.17      
10 A' 581 559 0.04      
11 A' 237 228 2.86      
12 A" 1010 972 10.91      
13 A" 992 954 46.09      
14 A" 715 687 11.57      
15 A" 351 338 0.27      

Unscaled Zero Point Vibrational Energy (zpe) 11132.9 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 10705.4 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 B3PW91/cc-pVTZ
ABC
1.71254 0.16638 0.15165

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.575 -0.534 0.000
N2 -1.065 -1.578 0.000
C3 0.000 0.769 0.000
H4 -0.704 1.593 0.000
C5 1.313 0.982 0.000
H6 2.022 0.164 0.000
H7 1.707 1.989 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 H7
C11.15341.42362.13092.42082.68843.4017
N21.15342.57683.19143.49373.54404.5175
C31.42362.57681.08431.33032.11022.0985
H42.13093.19141.08432.10793.07782.4434
C52.42083.49371.33032.10791.08211.0819
H62.68843.54402.11023.07781.08211.8525
H73.40174.51752.09852.44341.08191.8525

picture of acrylonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 115.697 C1 C3 C5 123.022
N2 C1 C3 178.655 C3 C5 H6 121.687
C3 C5 H7 120.565 H4 C3 C5 121.281
H6 C5 H7 117.747
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.019      
2 N -0.094      
3 C -0.097      
4 H 0.148      
5 C -0.201      
6 H 0.133      
7 H 0.131      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.992 3.421 0.000 3.959
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.276 -2.743 0.000
y -2.743 -25.510 0.000
z 0.000 0.000 -24.596
Traceless
 xyz
x 2.777 -2.743 0.000
y -2.743 -2.074 0.000
z 0.000 0.000 -0.703
Polar
3z2-r2-1.406
x2-y23.234
xy-2.743
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 77.816
(<r2>)1/2 8.821