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All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: mPW1PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/3-21G*
 hartrees
Energy at 0K-169.841430
Energy at 298.15K-169.843981
Nuclear repulsion energy90.181177
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 mPW1PW91/3-21G*
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' 3293 3127 1.54      
2 A' 3212 3050 0.74      
3 A' 3199 3038 0.12      
4 A' 2362 2243 4.20      
5 A' 1702 1617 0.96      
6 A' 1501 1425 8.75      
7 A' 1366 1297 0.02      
8 A' 1156 1098 5.86      
9 A' 900 855 0.82      
10 A' 631 600 0.09      
11 A' 269 255 1.27      
12 A" 1039 987 4.00      
13 A" 1019 967 79.30      
14 A" 776 737 14.27      
15 A" 406 385 0.45      

Unscaled Zero Point Vibrational Energy (zpe) 11415.9 cm-1
Scaled (by 0.9496) Zero Point Vibrational Energy (zpe) 10840.5 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 mPW1PW91/3-21G*
ABC
1.68544 0.16593 0.15106

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G*

Point Group is Cs

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.307      
2 N -0.492      
3 C -0.212      
4 H 0.277      
5 C -0.373      
6 H 0.250      
7 H 0.243      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.906 3.204 0.000 3.728
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.844 -2.610 0.000
y -2.610 -25.143 0.000
z 0.000 0.000 -24.710
Traceless
 xyz
x 3.082 -2.610 0.000
y -2.610 -1.866 0.000
z 0.000 0.000 -1.217
Polar
3z2-r2-2.433
x2-y23.299
xy-2.610
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.852 1.876 0.000
y 1.876 5.754 0.000
z 0.000 0.000 1.657


<r2> (average value of r2) Å2
<r2> 77.919
(<r2>)1/2 8.827