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All results from a given calculation for C2H3I (Vinyl iodide)

using model chemistry: CID/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CID/3-21G
 hartrees
Energy at 0K-6965.078480
Energy at 298.15K 
HF Energy-6964.861394
Nuclear repulsion energy186.671373
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 CID/3-21G
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' 3281 3056 7.26      
2 A' 3263 3040 3.14      
3 A' 3192 2973 1.82      
4 A' 1708 1591 25.23      
5 A' 1512 1409 14.74      
6 A' 1349 1257 55.65      
7 A' 1094 1019 3.77      
8 A' 554 516 6.46      
9 A' 324 302 0.07      
10 A" 1047 976 46.20      
11 A" 1027 957 30.77      
12 A" 593 552 19.80      

Unscaled Zero Point Vibrational Energy (zpe) 9471.2 cm-1
Scaled (by 0.9316) Zero Point Vibrational Energy (zpe) 8823.4 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 CID/3-21G
ABC
1.79485 0.10326 0.09764

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.465 -1.505 0.000
C2 -0.445 -2.472 0.000
I3 0.000 0.592 0.000
H4 1.528 -1.705 0.000
H5 -1.510 -2.276 0.000
H6 -0.139 -3.514 0.000

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6
C11.32762.14791.08152.11982.0978
C21.32763.09612.11651.08321.0858
I32.14793.09612.75843.24084.1083
H41.08152.11652.75843.09092.4600
H52.11981.08323.24083.09091.8475
H62.09781.08584.10832.46001.8475

picture of Vinyl iodide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 122.795 C1 C2 H6 120.403
C2 C1 I3 124.258 C2 C1 H4 122.602
I3 C1 H4 113.140 H5 C2 H6 116.802
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability