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All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: HF/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/CEP-31G*
 hartrees
Energy at 0K-27.846578
Energy at 298.15K-27.849118
Nuclear repulsion energy45.853437
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 HF/CEP-31G*
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' 3461 3108 12.00      
2 A' 3420 3071 3.10      
3 A' 3363 3020 7.86      
4 A' 2598 2333 40.37      
5 A' 1839 1651 0.04      
6 A' 1550 1392 7.21      
7 A' 1411 1267 1.86      
8 A' 1178 1058 5.35      
9 A' 929 834 4.02      
10 A' 615 553 0.01      
11 A' 257 231 3.17      
12 A" 1117 1003 58.48      
13 A" 1094 982 16.96      
14 A" 772 694 15.59      
15 A" 394 354 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 11999.6 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 10775.6 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 HF/CEP-31G*
ABC
1.61265 0.16411 0.14895

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.654 -0.544 0.000
N2 -1.178 -1.571 0.000
C3 0.000 0.765 0.000
H4 -0.652 1.624 0.000
C5 1.341 0.873 0.000
H6 1.982 0.004 0.000
H7 1.810 1.848 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 H7
C11.15281.46332.16832.44702.69263.4332
N21.15282.61613.23813.50973.53094.5397
C31.46332.61611.07831.34572.12382.1084
H42.16833.23811.07832.13013.09282.4712
C52.44703.50971.34572.13011.08001.0813
H62.69263.53092.12383.09281.08001.8519
H73.43324.53972.10842.47121.08131.8519

picture of acrylonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 116.281 C1 C3 C5 121.120
N2 C1 C3 179.489 C3 C5 H6 121.835
C3 C5 H7 120.231 H4 C3 C5 122.599
H6 C5 H7 117.934
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.623      
2 N 0.337      
3 C -0.011      
4 H 0.287      
5 C -0.420      
6 H 0.241      
7 H 0.189      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.454 3.611 0.000 4.366
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.606 -3.272 0.000
y -3.272 -25.900 0.000
z 0.000 0.000 -25.169
Traceless
 xyz
x 2.928 -3.272 0.000
y -3.272 -2.013 0.000
z 0.000 0.000 -0.916
Polar
3z2-r2-1.832
x2-y23.294
xy-3.272
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.913 1.863 0.000
y 1.863 5.688 0.000
z 0.000 0.000 2.655


<r2> (average value of r2) Å2
<r2> 63.773
(<r2>)1/2 7.986