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All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: PBEPBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-170.624459
Energy at 298.15K-170.626751
Nuclear repulsion energy89.215384
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 PBEPBE/cc-pVDZ
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' 3200 3181 1.01      
2 A' 3107 3089 0.66      
3 A' 3093 3075 0.19      
4 A' 2252 2239 3.37      
5 A' 1632 1622 1.03      
6 A' 1375 1367 5.83      
7 A' 1259 1251 0.05      
8 A' 1066 1060 3.54      
9 A' 872 867 0.87      
10 A' 557 554 0.05      
11 A' 226 225 1.73      
12 A" 963 958 20.33      
13 A" 927 922 24.62      
14 A" 686 682 8.42      
15 A" 339 337 0.09      

Unscaled Zero Point Vibrational Energy (zpe) 10776.7 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 10714.2 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 PBEPBE/cc-pVDZ
ABC
1.66419 0.16229 0.14787

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.582 -0.532 0.000
N2 -1.081 -1.599 0.000
C3 0.000 0.775 0.000
H4 -0.712 1.616 0.000
C5 1.332 0.991 0.000
H6 2.050 0.158 0.000
H7 1.730 2.016 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 H7
C11.17761.43092.15212.44652.72103.4409
N21.17762.60843.23573.54043.59064.5795
C31.43092.60841.10221.34982.14082.1293
H42.15213.23571.10222.13813.12342.4754
C52.44653.54041.34982.13811.09951.0992
H62.72103.59062.14083.12341.09951.8849
H73.44094.57952.12932.47541.09921.8849

picture of acrylonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 115.731 C1 C3 C5 123.216
N2 C1 C3 178.901 C3 C5 H6 121.527
C3 C5 H7 120.450 H4 C3 C5 121.053
H6 C5 H7 118.023
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.036      
2 N -0.110      
3 C -0.057      
4 H 0.051      
5 C 0.046      
6 H 0.052      
7 H 0.054      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.807 3.128 0.000 3.613
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.224 -2.449 0.000
y -2.449 -25.006 0.000
z 0.000 0.000 -24.408
Traceless
 xyz
x 2.483 -2.449 0.000
y -2.449 -1.690 0.000
z 0.000 0.000 -0.793
Polar
3z2-r2-1.586
x2-y22.782
xy-2.449
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.673 2.067 0.000
y 2.067 6.731 0.000
z 0.000 0.000 2.500


<r2> (average value of r2) Å2
<r2> 79.278
(<r2>)1/2 8.904