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All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: B3LYP/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-28.564810
Energy at 298.15K-28.567187
Nuclear repulsion energy45.392347
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 B3LYP/CEP-121G
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' 3236 3154 10.73      
2 A' 3160 3079 3.70      
3 A' 3124 3044 2.13      
4 A' 2218 2162 9.67      
5 A' 1643 1601 2.13      
6 A' 1448 1411 7.18      
7 A' 1321 1287 0.16      
8 A' 1112 1084 6.06      
9 A' 865 842 1.81      
10 A' 569 555 0.37      
11 A' 233 227 1.39      
12 A" 1011 985 0.64      
13 A" 1003 978 81.39      
14 A" 716 697 9.44      
15 A" 345 336 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 11001.5 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 10721.0 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 B3LYP/CEP-121G
ABC
1.64949 0.15985 0.14573

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.646 -0.546 0.000
N2 -1.192 -1.599 0.000
C3 0.000 0.751 0.000
H4 -0.667 1.612 0.000
C5 1.349 0.904 0.000
H6 2.024 0.051 0.000
H7 1.790 1.897 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 H7
C11.18601.44922.15802.46582.73583.4504
N21.18602.63513.25333.56643.61484.5955
C31.44922.63511.08851.35732.14152.1259
H42.15803.25331.08852.13593.11032.4737
C52.46583.56641.35732.13591.08761.0872
H62.73583.61482.14153.11031.08761.8605
H73.45044.59552.12592.47371.08721.8605

picture of acrylonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 115.776 C1 C3 C5 122.921
N2 C1 C3 179.031 C3 C5 H6 121.927
C3 C5 H7 120.442 H4 C3 C5 121.303
H6 C5 H7 117.631
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.498      
2 N 0.243      
3 C 0.083      
4 H 0.192      
5 C -0.348      
6 H 0.179      
7 H 0.150      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.194 3.420 0.000 4.063
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.943 -3.300 0.000
y -3.300 -26.091 0.000
z 0.000 0.000 -25.040
Traceless
 xyz
x 2.622 -3.300 0.000
y -3.300 -2.099 0.000
z 0.000 0.000 -0.523
Polar
3z2-r2-1.046
x2-y23.148
xy-3.300
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.122 2.182 -0.000
y 2.182 6.576 0.000
z -0.000 0.000 2.710


<r2> (average value of r2) Å2
<r2> 64.917
(<r2>)1/2 8.057