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All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: PBEPBE/aug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/aug-cc-pVTZ
 hartrees
Energy at 0K-170.676689
Energy at 298.15K-170.678998
Nuclear repulsion energy89.837478
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 PBEPBE/aug-cc-pVTZ
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' 3179 3159 0.95      
2 A' 3095 3075 0.73      
3 A' 3086 3066 0.27      
4 A' 2242 2228 5.14      
5 A' 1623 1612 1.79      
6 A' 1399 1390 6.75      
7 A' 1274 1266 0.13      
8 A' 1075 1068 2.30      
9 A' 867 862 0.96      
10 A' 563 559 0.03      
11 A' 227 226 2.72      
12 A" 971 965 15.92      
13 A" 946 940 37.68      
14 A" 690 686 10.30      
15 A" 336 334 0.15      

Unscaled Zero Point Vibrational Energy (zpe) 10787.2 cm-1
Scaled (by 0.9935) Zero Point Vibrational Energy (zpe) 10717.1 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 PBEPBE/aug-cc-pVTZ
ABC
1.69682 0.16416 0.14968

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.577 -0.534 0.000
N2 -1.075 -1.588 0.000
C3 0.000 0.769 0.000
H4 -0.709 1.600 0.000
C5 1.323 0.989 0.000
H6 2.039 0.167 0.000
H7 1.716 2.004 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 H7
C11.16621.42502.13802.43432.70773.4201
N21.16622.59103.20913.51983.57434.5490
C31.42502.59101.09241.34112.12602.1140
H42.13803.20911.09242.12253.09952.4586
C52.43433.51981.34112.12251.08961.0892
H62.70773.57432.12603.09951.08961.8656
H73.42014.54902.11402.45861.08921.8656

picture of acrylonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 115.637 C1 C3 C5 123.269
N2 C1 C3 178.573 C3 C5 H6 121.666
C3 C5 H7 120.530 H4 C3 C5 121.094
H6 C5 H7 117.805
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.388      
2 N -0.513      
3 C -0.048      
4 H 0.341      
5 C -0.764      
6 H 0.241      
7 H 0.356      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.969 3.397 0.000 3.926
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.762 -2.811 0.000
y -2.811 -25.976 0.000
z 0.000 0.000 -24.966
Traceless
 xyz
x 2.709 -2.811 0.000
y -2.811 -2.112 0.000
z 0.000 0.000 -0.597
Polar
3z2-r2-1.193
x2-y23.214
xy-2.811
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.626 2.149 0.000
y 2.149 7.765 0.000
z 0.000 0.000 4.378


<r2> (average value of r2) Å2
<r2> 78.919
(<r2>)1/2 8.884