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All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-170.759180
Energy at 298.15K-170.761549
Nuclear repulsion energy89.968989
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 B3PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3287 3145 2.05      
2 A' 3207 3068 1.16      
3 A' 3193 3054 0.78      
4 A' 2358 2256 9.16      
5 A' 1704 1630 0.49      
6 A' 1459 1396 6.58      
7 A' 1328 1271 0.20      
8 A' 1117 1069 3.79      
9 A' 895 856 0.80      
10 A' 578 553 0.04      
11 A' 237 227 2.66      
12 A" 1008 965 23.83      
13 A" 981 939 35.68      
14 A" 714 683 12.58      
15 A" 355 340 0.50      

Unscaled Zero Point Vibrational Energy (zpe) 11210.6 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 10725.2 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 B3PW91/6-31G*
ABC
1.68629 0.16486 0.15017

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.579 -0.532 0.000
N2 -1.072 -1.586 0.000
C3 0.000 0.774 0.000
H4 -0.702 1.605 0.000
C5 1.321 0.982 0.000
H6 2.030 0.160 0.000
H7 1.723 1.991 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 H7
C11.16351.42852.14012.42952.69963.4147
N21.16352.59193.21183.51013.55984.5387
C31.42852.59191.08781.33752.12142.1088
H42.14013.21181.08782.11743.09142.4555
C52.42953.51011.33752.11741.08581.0856
H62.69963.55982.12143.09141.08581.8566
H73.41474.53872.10882.45551.08561.8566

picture of acrylonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 115.869 C1 C3 C5 122.848
N2 C1 C3 178.846 C3 C5 H6 121.844
C3 C5 H7 120.627 H4 C3 C5 121.282
H6 C5 H7 117.529
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.328     0.403
2 N -0.475     -0.439
3 C -0.142     -0.231
4 H 0.219     0.186
5 C -0.335     -0.280
6 H 0.207     0.186
7 H 0.197     0.175


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.982 3.380 0.000 3.919
CHELPG        
AIM        
ESP 1.992 3.385 0.000 3.927


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.830 -2.698 0.000
y -2.698 -25.044 0.000
z 0.000 0.000 -24.224
Traceless
 xyz
x 2.804 -2.698 0.000
y -2.698 -2.017 0.000
z 0.000 0.000 -0.787
Polar
3z2-r2-1.574
x2-y23.214
xy-2.698
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> 78.159
(<r2>)1/2 8.841