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All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: PBE1PBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBE1PBE/6-31G*
 hartrees
Energy at 0K-170.620360
Energy at 298.15K-170.622740
HF Energy-170.620360
Nuclear repulsion energy90.074265
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 PBE1PBE/6-31G*
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' 3304 3140 1.54      
2 A' 3225 3065 0.86      
3 A' 3208 3049 0.42      
4 A' 2382 2263 8.95      
5 A' 1717 1632 0.41      
6 A' 1461 1389 7.13      
7 A' 1331 1265 0.27      
8 A' 1120 1065 4.11      
9 A' 900 856 0.86      
10 A' 581 553 0.04      
11 A' 237 226 2.67      
12 A" 1013 963 23.48      
13 A" 988 939 37.06      
14 A" 718 682 13.04      
15 A" 357 340 0.47      

Unscaled Zero Point Vibrational Energy (zpe) 11272.6 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 10712.4 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 PBE1PBE/6-31G*
ABC
1.68450 0.16539 0.15060

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.579 -0.530 0.000
N2 -1.071 -1.583 0.000
C3 0.000 0.775 0.000
H4 -0.701 1.606 0.000
C5 1.320 0.979 0.000
H6 2.026 0.154 0.000
H7 1.724 1.986 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 H7
C11.16181.42772.13962.42572.69303.4111
N21.16182.58933.21013.50393.55014.5329
C31.42772.58931.08731.33572.11862.1069
H42.13963.21011.08732.11603.08902.4544
C52.42573.50391.33572.11601.08551.0852
H62.69303.55012.11863.08901.08551.8569
H73.41114.53292.10692.45441.08521.8569

picture of acrylonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 115.928 C1 C3 C5 122.720
N2 C1 C3 178.902 C3 C5 H6 121.752
C3 C5 H7 120.634 H4 C3 C5 121.352
H6 C5 H7 117.614
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.316      
2 N -0.462      
3 C -0.150      
4 H 0.225      
5 C -0.340      
6 H 0.211      
7 H 0.201      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.988 3.383 0.000 3.924
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.854 -2.686 0.000
y -2.686 -25.062 0.000
z 0.000 0.000 -24.298
Traceless
 xyz
x 2.826 -2.686 0.000
y -2.686 -1.986 0.000
z 0.000 0.000 -0.840
Polar
3z2-r2-1.681
x2-y23.208
xy-2.686
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.275 2.004 0.000
y 2.004 6.279 0.000
z 0.000 0.000 2.170


<r2> (average value of r2) Å2
<r2> 78.005
(<r2>)1/2 8.832