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All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CBS-Q
 hartrees
Energy at 0K-170.537703
Energy at 298.15K-170.532619
Nuclear repulsion energy90.747906
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 CBS-Q
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' 3433 3433 3.78      
2 A' 3381 3381 1.41      
3 A' 3339 3339 2.24      
4 A' 2613 2613 29.39      
5 A' 1846 1846 0.16      
6 A' 1564 1564 8.77      
7 A' 1427 1427 1.56      
8 A' 1195 1195 4.28      
9 A' 931 931 3.29      
10 A' 629 629 0.33      
11 A' 262 262 4.21      
12 A" 1117 1117 27.98      
13 A" 1102 1102 31.33      
14 A" 777 777 15.52      
15 A" 393 393 1.09      

Unscaled Zero Point Vibrational Energy (zpe) 12004.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12004.2 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 CBS-Q
See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.582 -0.541 0.000
N2 -1.054 -1.574 0.000
C3 0.000 0.781 0.000
H4 -0.699 1.600 0.000
C5 1.308 0.975 0.000
H6 2.005 0.155 0.000
H7 1.716 1.971 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 H7
C11.13561.44462.14432.42232.67923.4046
N21.13562.58013.19373.47453.51384.4989
C31.44462.58011.07641.32182.10112.0884
H42.14433.19371.07642.10143.06632.4432
C52.42233.47451.32182.10141.07701.0769
H62.67923.51382.10113.06631.07701.8394
H73.40464.49892.08842.44321.07691.8394

picture of acrylonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 115.779 C1 C3 C5 122.170
N2 C1 C3 179.189 C3 C5 H6 121.974
C3 C5 H7 120.719 H4 C3 C5 122.051
H6 C5 H7 117.307
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability