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

using model chemistry: QCISD/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 QCISD/3-21G*
 hartrees
Energy at 0K-6965.253767
Energy at 298.15K 
HF Energy-6964.926930
Nuclear repulsion energy185.999491
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/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' 3212 3087 5.00      
2 A' 3192 3068 3.85      
3 A' 3123 3001 1.42      
4 A' 1640 1576 19.13      
5 A' 1465 1408 16.01      
6 A' 1311 1260 52.71      
7 A' 1062 1021 4.64      
8 A' 543 522 7.45      
9 A' 311 299 0.09      
10 A" 988 950 49.73      
11 A" 957 919 14.01      
12 A" 553 532 16.52      

Unscaled Zero Point Vibrational Energy (zpe) 9178.5 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 8821.5 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/3-21G*
ABC
1.73040 0.10299 0.09721

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.477 -1.512 0.000
C2 -0.455 -2.473 0.000
I3 0.000 0.592 0.000
H4 1.548 -1.701 0.000
H5 -1.522 -2.261 0.000
H6 -0.161 -3.524 0.000

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6
C11.33922.15801.08702.13502.1107
C21.33923.09952.14621.08821.0910
I32.15803.09952.76723.23384.1196
H41.08702.14622.76723.12032.4980
H52.13501.08823.23383.12031.8572
H62.11071.09104.11962.49801.8572

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 122.848 C1 C2 H6 120.234
C2 C1 I3 123.100 C2 C1 H4 124.084
I3 C1 H4 112.816 H5 C2 H6 116.918
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability