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All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-169.821742
Energy at 298.15K-169.824285
Nuclear repulsion energy90.025779
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 B3PW91/3-21G
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' 3274 3147 1.71      
2 A' 3192 3068 0.94      
3 A' 3179 3056 0.13      
4 A' 2338 2247 3.82      
5 A' 1688 1622 1.02      
6 A' 1492 1435 8.32      
7 A' 1358 1306 0.01      
8 A' 1149 1104 5.60      
9 A' 894 859 0.76      
10 A' 627 602 0.09      
11 A' 268 257 1.23      
12 A" 1029 989 7.10      
13 A" 1008 969 74.60      
14 A" 770 740 13.86      
15 A" 403 388 0.45      

Unscaled Zero Point Vibrational Energy (zpe) 11334.3 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 10894.5 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 B3PW91/3-21G
ABC
1.68312 0.16529 0.15051

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.584 -0.524 0.000
N2 -1.068 -1.587 0.000
C3 0.000 0.771 0.000
H4 -0.697 1.606 0.000
C5 1.321 0.979 0.000
H6 2.029 0.157 0.000
H7 1.724 1.987 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 H7
C11.16721.42102.13322.42722.70043.4108
N21.16722.58823.21403.50613.55404.5348
C31.42102.58821.08741.33742.11972.1095
H42.13323.21401.08742.11263.08662.4503
C52.42723.50611.33742.11261.08511.0849
H62.70043.55402.11973.08661.08511.8550
H73.41084.53482.10952.45031.08491.8550

picture of acrylonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 115.883 C1 C3 C5 123.245
N2 C1 C3 179.781 C3 C5 H6 121.745
C3 C5 H7 120.768 H4 C3 C5 120.872
H6 C5 H7 117.487
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.305      
2 N -0.487      
3 C -0.208      
4 H 0.273      
5 C -0.367      
6 H 0.246      
7 H 0.239      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.889 3.187 0.000 3.705
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.849 -2.602 0.000
y -2.602 -25.121 0.000
z 0.000 0.000 -24.682
Traceless
 xyz
x 3.053 -2.602 0.000
y -2.602 -1.855 0.000
z 0.000 0.000 -1.197
Polar
3z2-r2-2.394
x2-y23.272
xy-2.602
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> 78.139
(<r2>)1/2 8.840