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All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: B3LYP/CEP-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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-28.600592
Energy at 298.15K-28.602907
Nuclear repulsion energy45.316702
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-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' 3263 3151 8.41      
2 A' 3198 3088 3.24      
3 A' 3167 3058 3.15      
4 A' 2327 2247 15.31      
5 A' 1681 1623 0.94      
6 A' 1428 1379 6.41      
7 A' 1298 1254 0.61      
8 A' 1091 1054 5.81      
9 A' 878 848 1.46      
10 A' 560 540 0.09      
11 A' 228 220 1.59      
12 A" 1002 967 58.21      
13 A" 981 947 33.52      
14 A" 700 676 12.64      
15 A" 348 336 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 11074.1 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 10694.3 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-31G*
ABC
1.58781 0.16077 0.14599

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.656 -0.536 0.000
N2 -1.201 -1.585 0.000
C3 0.000 0.763 0.000
H4 -0.655 1.640 0.000
C5 1.360 0.878 0.000
H6 2.010 -0.001 0.000
H7 1.831 1.867 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 H7
C11.18171.45572.17592.46272.71923.4580
N21.18172.63733.27043.55313.58034.5939
C31.45572.63731.09381.36512.15062.1375
H42.17593.27041.09382.15393.12932.4955
C52.46273.55311.36512.15391.09321.0950
H62.71923.58032.15063.12931.09321.8766
H73.45804.59392.13752.49551.09501.8766

picture of acrylonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 116.466 C1 C3 C5 121.601
N2 C1 C3 179.321 C3 C5 H6 121.654
C3 C5 H7 120.260 H4 C3 C5 121.933
H6 C5 H7 118.087
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.663      
2 N 0.378      
3 C -0.003      
4 H 0.306      
5 C -0.501      
6 H 0.274      
7 H 0.210      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.246 3.397 0.000 4.073
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.386 -3.081 0.000
y -3.081 -25.021 0.000
z 0.000 0.000 -24.814
Traceless
 xyz
x 2.532 -3.081 0.000
y -3.081 -1.421 0.000
z 0.000 0.000 -1.111
Polar
3z2-r2-2.221
x2-y22.636
xy-3.081
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.029 2.142 0.000
y 2.142 6.229 -0.001
z 0.000 -0.001 2.688


<r2> (average value of r2) Å2
<r2> 64.484
(<r2>)1/2 8.030