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All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: CCD/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 CCD/6-31G*
 hartrees
Energy at 0K-170.315075
Energy at 298.15K-170.317419
HF Energy-169.764964
Nuclear repulsion energy89.669791
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 CCD/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' 3297 3121 3.58      
2 A' 3234 3061 1.13      
3 A' 3205 3034 0.49      
4 A' 2373 2247 0.22      
5 A' 1728 1636 3.05      
6 A' 1482 1402 3.82      
7 A' 1351 1279 0.29      
8 A' 1137 1076 3.74      
9 A' 895 847 1.26      
10 A' 574 544 0.03      
11 A' 236 223 3.24      
12 A" 1006 952 30.72      
13 A" 974 922 30.62      
14 A" 699 661 10.13      
15 A" 339 321 0.70      

Unscaled Zero Point Vibrational Energy (zpe) 11264.8 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 10662.2 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 CCD/6-31G*
ABC
1.65004 0.16415 0.14930

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.582 -0.538 0.000
N2 -1.075 -1.592 0.000
C3 0.000 0.786 0.000
H4 -0.706 1.614 0.000
C5 1.325 0.983 0.000
H6 2.032 0.156 0.000
H7 1.738 1.989 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 H7
C11.16441.44592.15572.43912.70373.4296
N21.16442.61013.22793.52073.56514.5538
C31.44592.61011.08821.34002.12702.1134
H42.15573.22791.08822.12703.10142.4721
C52.43913.52071.34002.12701.08731.0869
H62.70373.56512.12703.10141.08731.8558
H73.42964.55382.11342.47211.08691.8558

picture of acrylonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 115.855 C1 C3 C5 122.169
N2 C1 C3 178.626 C3 C5 H6 122.047
C3 C5 H7 120.756 H4 C3 C5 121.976
H6 C5 H7 117.197
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability