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All results from a given calculation for C3H3N (acrylonitrile)

using model chemistry: QCISD/6-311G*

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/6-311G*
 hartrees
Energy at 0K-170.380017
Energy at 298.15K-170.382367
HF Energy-169.799880
Nuclear repulsion energy89.644081
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/6-311G*
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' 3261 3122 4.03      
2 A' 3201 3065 1.42      
3 A' 3164 3030 1.17      
4 A' 2322 2223 1.36      
5 A' 1690 1618 1.44      
6 A' 1459 1397 6.91      
7 A' 1332 1275 0.42      
8 A' 1122 1074 3.77      
9 A' 879 842 1.36      
10 A' 574 549 0.00      
11 A' 236 226 2.70      
12 A" 991 948 36.97      
13 A" 957 917 29.91      
14 A" 695 665 12.05      
15 A" 346 331 0.12      

Unscaled Zero Point Vibrational Energy (zpe) 11114.0 cm-1
Scaled (by 0.9574) Zero Point Vibrational Energy (zpe) 10640.5 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/6-311G*
ABC
1.64595 0.16400 0.14914

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.588 -0.533 0.000
N2 -1.074 -1.590 0.000
C3 0.000 0.787 0.000
H4 -0.697 1.622 0.000
C5 1.329 0.977 0.000
H6 2.027 0.144 0.000
H7 1.743 1.981 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 H4 C5 H6 H7
C11.16271.44512.15782.44002.70083.4287
N21.16272.60783.23363.51543.55194.5480
C31.44512.60781.08761.34212.12612.1130
H42.15783.23361.08762.12563.09872.4662
C52.44003.51541.34212.12561.08691.0865
H62.70083.55192.12613.09871.08691.8592
H73.42874.54802.11302.46621.08651.8592

picture of acrylonitrile state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 H4 116.143 C1 C3 C5 122.154
N2 C1 C3 179.324 C3 C5 H6 121.814
C3 C5 H7 120.571 H4 C3 C5 121.703
H6 C5 H7 117.615
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability