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All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: QCISD/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/6-31G(2df,p)
 hartrees
Energy at 0K-170.432959
Energy at 298.15K-170.435346
HF Energy-169.782937
Nuclear repulsion energy89.957531
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 QCISD/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' 3305 3132 1.02      
2 A' 3246 3075 0.93      
3 A' 3209 3040 0.08      
4 A' 2346 2222 2.47      
5 A' 1698 1609 0.75      
6 A' 1463 1386 5.89      
7 A' 1336 1266 0.61      
8 A' 1119 1060 2.69      
9 A' 882 835 1.33      
10 A' 574 543 0.14      
11 A' 237 224 3.63      
12 A" 1021 968 25.30      
13 A" 1000 947 22.00      
14 A" 714 676 9.89      
15 A" 356 337 0.84      

Unscaled Zero Point Vibrational Energy (zpe) 11252.3 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 10660.4 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 QCISD/6-31G(2df,p)
ABC
1.66234 0.16512 0.15020

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.582 -0.535 0.000
N2 -1.070 -1.586 0.000
C3 0.000 0.783 0.000
H4 -0.703 1.608 0.000
C5 1.322 0.979 0.000
H6 2.022 0.152 0.000
H7 1.733 1.980 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 H7
C11.15881.44082.14572.43232.69313.4189
N21.15882.59953.21453.50683.54684.5363
C31.44082.59951.08331.33632.11802.1067
H42.14573.21451.08332.12013.08902.4646
C52.43233.50681.33632.12011.08311.0830
H62.69313.54682.11803.08901.08311.8510
H73.41894.53632.10672.46461.08301.8510

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 122.252
N2 C1 C3 178.947 C3 C5 H6 121.841
C3 C5 H7 120.748 H4 C3 C5 122.031
H6 C5 H7 117.412
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability