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

using model chemistry: CISD/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 CISD/3-21G
 hartrees
Energy at 0K-6965.080542
Energy at 298.15K 
HF Energy-6964.861311
Nuclear repulsion energy186.551037
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 CISD/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' 3275 3083 7.18      
2 A' 3257 3066 3.57      
3 A' 3186 2999 1.87      
4 A' 1700 1600 24.40      
5 A' 1508 1419 15.27      
6 A' 1345 1266 58.84      
7 A' 1091 1027 3.71      
8 A' 551 519 7.16      
9 A' 323 304 0.08      
10 A" 1044 983 50.71      
11 A" 1024 964 25.63      
12 A" 591 557 19.88      

Unscaled Zero Point Vibrational Energy (zpe) 9447.7 cm-1
Scaled (by 0.9413) Zero Point Vibrational Energy (zpe) 8893.1 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 CISD/3-21G
ABC
1.79118 0.10313 0.09752

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.466 -1.506 0.000
C2 -0.445 -2.474 0.000
I3 0.000 0.592 0.000
H4 1.529 -1.705 0.000
H5 -1.511 -2.277 0.000
H6 -0.139 -3.516 0.000

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6
C11.32882.14941.08182.12112.0987
C21.32883.09812.11851.08351.0861
I32.14943.09812.75963.24224.1104
H41.08182.11852.75963.09282.4620
H52.12111.08353.24223.09281.8483
H62.09871.08614.11042.46201.8483

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 122.786 C1 C2 H6 120.370
C2 C1 I3 124.222 C2 C1 H4 122.669
I3 C1 H4 113.109 H5 C2 H6 116.844
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability