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All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: B1B95/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B1B95/6-31G(2df,p)
 hartrees
Energy at 0K-170.766451
Energy at 298.15K-170.768846
Nuclear repulsion energy90.380211
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 B1B95/6-31G(2df,p)
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' 3283 3145 1.11      
2 A' 3204 3068 0.91      
3 A' 3184 3049 0.18      
4 A' 2366 2266 7.02      
5 A' 1698 1626 0.47      
6 A' 1439 1378 6.78      
7 A' 1312 1256 0.31      
8 A' 1103 1056 3.21      
9 A' 889 851 1.15      
10 A' 579 554 0.12      
11 A' 237 227 3.12      
12 A" 1014 971 15.76      
13 A" 990 948 29.58      
14 A" 722 691 9.96      
15 A" 362 347 0.68      

Unscaled Zero Point Vibrational Energy (zpe) 11190.0 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 10716.7 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 B1B95/6-31G(2df,p)
ABC
1.70368 0.16630 0.15151

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.576 -0.531 0.000
N2 -1.066 -1.579 0.000
C3 0.000 0.771 0.000
H4 -0.703 1.596 0.000
C5 1.314 0.980 0.000
H6 2.020 0.159 0.000
H7 1.714 1.986 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 H7
C11.15641.42372.13142.42012.68693.4029
N21.15642.57993.19593.49443.54204.5203
C31.42372.57991.08441.33082.11092.1009
H42.13143.19591.08442.10943.07932.4480
C52.42013.49441.33082.10941.08251.0825
H62.68693.54202.11093.07931.08251.8520
H73.40294.52032.10092.44801.08251.8520

picture of acrylonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 115.722 C1 C3 C5 122.909
N2 C1 C3 178.824 C3 C5 H6 121.682
C3 C5 H7 120.702 H4 C3 C5 121.369
H6 C5 H7 117.616
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.283      
2 N -0.328      
3 C -0.139      
4 H 0.158      
5 C -0.287      
6 H 0.159      
7 H 0.154      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.930 3.337 0.000 3.855
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.906 -2.677 0.000
y -2.677 -25.010 0.000
z 0.000 0.000 -23.998
Traceless
 xyz
x 2.598 -2.677 0.000
y -2.677 -2.058 0.000
z 0.000 0.000 -0.539
Polar
3z2-r2-1.079
x2-y23.104
xy-2.677
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.435 1.915 0.000
y 1.915 6.457 0.000
z 0.000 0.000 2.710


<r2> (average value of r2) Å2
<r2> 77.566
(<r2>)1/2 8.807