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All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: mPW1PW91/STO-3G

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/STO-3G
 hartrees
Energy at 0K-168.640666
Energy at 298.15K-168.642864
Nuclear repulsion energy88.626671
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/STO-3G
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' 3603 3167 3.76      
2 A' 3488 3065 7.29      
3 A' 3443 3026 45.73      
4 A' 2404 2113 14.18      
5 A' 1819 1599 1.24      
6 A' 1551 1363 4.86      
7 A' 1399 1230 0.99      
8 A' 1164 1023 2.83      
9 A' 913 803 0.16      
10 A' 590 519 0.24      
11 A' 239 210 1.42      
12 A" 1087 955 11.52      
13 A" 1027 902 18.40      
14 A" 742 652 6.36      
15 A" 343 302 0.38      

Unscaled Zero Point Vibrational Energy (zpe) 11905.6 cm-1
Scaled (by 0.8789) Zero Point Vibrational Energy (zpe) 10463.8 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/STO-3G
ABC
1.64935 0.15969 0.14560

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

Point Group is Cs

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.064      
2 N -0.174      
3 C -0.082      
4 H 0.114      
5 C -0.132      
6 H 0.106      
7 H 0.103      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.537 2.670 0.000 3.081
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x 1.351 -2.284 0.000
y -2.284 -1.426 0.000
z 0.000 0.000 0.075
Traceless
 xyz
x 2.027 -2.284 0.000
y -2.284 -2.139 0.000
z 0.000 0.000 0.112
Polar
3z2-r20.224
x2-y22.777
xy-2.284
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.835 1.456 0.000
y 1.456 3.941 0.000
z 0.000 0.000 0.767


<r2> (average value of r2) Å2
<r2> 79.162
(<r2>)1/2 8.897