return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: B3LYP/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3LYP/aug-cc-pVDZ
 hartrees
Energy at 0K-170.853432
Energy at 298.15K-170.855800
Nuclear repulsion energy89.760735
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/aug-cc-pVDZ
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' 3265 3168 1.13      
2 A' 3185 3090 0.82      
3 A' 3164 3070 0.44      
4 A' 2324 2255 9.51      
5 A' 1674 1624 1.35      
6 A' 1435 1392 7.29      
7 A' 1310 1272 0.39      
8 A' 1103 1070 2.39      
9 A' 882 856 1.74      
10 A' 573 556 0.07      
11 A' 235 228 3.09      
12 A" 998 968 2.27      
13 A" 991 962 53.85      
14 A" 707 687 10.63      
15 A" 342 332 0.25      

Unscaled Zero Point Vibrational Energy (zpe) 11093.7 cm-1
Scaled (by 0.9704) Zero Point Vibrational Energy (zpe) 10765.3 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/aug-cc-pVDZ
ABC
1.68805 0.16381 0.14932

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.579 -0.537 0.000
N2 -1.073 -1.590 0.000
C3 0.000 0.774 0.000
H4 -0.708 1.605 0.000
C5 1.324 0.989 0.000
H6 2.038 0.167 0.000
H7 1.718 2.005 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 H7
C11.16351.43322.14542.43952.71083.4259
N21.16352.59653.21583.52153.57394.5514
C31.43322.59651.09151.34102.12672.1131
H42.14543.21581.09152.12263.09972.4584
C52.43953.52151.34102.12261.08941.0891
H62.71083.57392.12673.09971.08941.8652
H73.42594.55142.11312.45841.08911.8652

picture of acrylonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 115.717 C1 C3 C5 123.094
N2 C1 C3 178.718 C3 C5 H6 121.756
C3 C5 H7 120.462 H4 C3 C5 121.189
H6 C5 H7 117.782
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability