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All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: G4

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at G4
 hartrees
Energy at 0K-170.746075
Energy at 298.15K-170.748691
HF Energy-170.842973
Nuclear repulsion energy90.188306
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 B3LYP/6-31G(2df,p)
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' 3260 3146 1.53      
2 A' 3181 3070 1.03      
3 A' 3167 3056 0.35      
4 A' 2344 2262 7.06      
5 A' 1681 1622 0.55      
6 A' 1447 1396 6.23      
7 A' 1320 1274 0.33      
8 A' 1108 1069 2.82      
9 A' 883 852 1.43      
10 A' 581 561 0.12      
11 A' 240 232 3.26      
12 A" 1015 979 17.11      
13 A" 989 955 26.15      
14 A" 722 697 9.40      
15 A" 363 350 0.79      

Unscaled Zero Point Vibrational Energy (zpe) 11150.7 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 10760.4 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 B3LYP/6-31G(2df,p)
ABC
1.70719 0.16529 0.15070

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.577 -0.535 0.000
N2 -1.068 -1.584 0.000
C3 0.000 0.770 0.000
H4 -0.706 1.595 0.000
C5 1.317 0.986 0.000
H6 2.029 0.170 0.000
H7 1.713 1.995 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 H7
C11.15811.42612.13352.42862.70003.4119
N21.15812.58413.19913.50553.55904.5317
C31.42612.58411.08601.33432.11622.1059
H42.13353.19911.08602.11203.08422.4513
C52.42863.50551.33432.11201.08381.0837
H62.70003.55902.11623.08421.08381.8523
H73.41194.53172.10592.45131.08371.8523

picture of acrylonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 115.400 C1 C3 C5 122.775
N2 C1 C3 177.943 C3 C5 H6 121.912
C3 C5 H7 120.836 H4 C3 C5 121.825
H6 C5 H7 117.252
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.265      
2 N -0.315      
3 C -0.111      
4 H 0.145      
5 C -0.273      
6 H 0.146      
7 H 0.143      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.928 3.348 0.000 3.863
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 78.011
(<r2>)1/2 8.832