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All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: mPW1PW91/aug-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 mPW1PW91/aug-cc-pVDZ
 hartrees
Energy at 0K-170.802330
Energy at 298.15K-170.804715
Nuclear repulsion energy89.986264
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 mPW1PW91/aug-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' 3295 3158 0.80      
2 A' 3216 3082 0.79      
3 A' 3189 3056 0.35      
4 A' 2358 2260 10.65      
5 A' 1698 1627 1.01      
6 A' 1437 1377 8.66      
7 A' 1312 1257 0.35      
8 A' 1106 1060 2.94      
9 A' 893 856 1.31      
10 A' 577 553 0.05      
11 A' 235 226 3.06      
12 A" 1003 962 0.03      
13 A" 998 957 57.10      
14 A" 712 682 11.08      
15 A" 346 332 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 11187.8 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 10721.3 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 mPW1PW91/aug-cc-pVDZ
ABC
1.68988 0.16488 0.15022

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.577 -0.534 0.000
N2 -1.072 -1.585 0.000
C3 0.000 0.773 0.000
H4 -0.707 1.603 0.000
C5 1.321 0.983 0.000
H6 2.031 0.159 0.000
H7 1.718 1.996 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 H7
C11.16121.42942.14152.42992.69833.4163
N21.16122.59043.20883.50993.55904.5395
C31.42942.59041.09011.33712.12172.1088
H42.14153.20881.09012.12003.09522.4564
C52.42993.50991.33712.12001.08821.0881
H62.69833.55902.12173.09521.08821.8639
H73.41634.53952.10882.45641.08811.8639

picture of acrylonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 115.769 C1 C3 C5 122.845
N2 C1 C3 178.581 C3 C5 H6 121.701
C3 C5 H7 120.459 H4 C3 C5 121.386
H6 C5 H7 117.840
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.263      
2 N -0.263      
3 C 1.156      
4 H -0.445      
5 C 0.468      
6 H -0.346      
7 H -0.307      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.056 3.503 0.000 4.061
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.470 -2.842 0.000
y -2.842 -25.818 0.000
z 0.000 0.000 -24.926
Traceless
 xyz
x 2.902 -2.842 0.000
y -2.842 -2.120 0.000
z 0.000 0.000 -0.782
Polar
3z2-r2-1.564
x2-y23.348
xy-2.842
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.381 2.041 0.000
y 2.041 7.364 0.000
z 0.000 0.000 4.231


<r2> (average value of r2) Å2
<r2> 78.587
(<r2>)1/2 8.865