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

using model chemistry: MP2/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/CEP-31G
 hartrees
Energy at 0K-24.042728
Energy at 298.15K 
HF Energy-23.854606
Nuclear repulsion energy30.431157
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 MP2/CEP-31G
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' 3263 3153 22.78 89.64 0.50 0.67
2 A' 3213 3104 17.26 138.29 0.33 0.50
3 A' 3146 3040 9.83 125.42 0.22 0.36
4 A' 1601 1547 25.12 7.80 0.56 0.71
5 A' 1421 1373 17.29 11.27 0.49 0.66
6 A' 1287 1244 43.68 17.25 0.62 0.77
7 A' 1019 985 8.66 5.56 0.40 0.58
8 A' 529 511 8.47 7.90 0.55 0.71
9 A' 300 290 0.28 13.69 0.65 0.79
10 A" 978 945 90.45 0.04 0.75 0.86
11 A" 873 843 29.10 8.57 0.75 0.86
12 A" 527 509 22.30 3.33 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9077.6 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 8771.6 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 MP2/CEP-31G
ABC
1.68476 0.10170 0.09591

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.483 -1.491 0.000
C2 -0.465 -2.507 0.000
I3 0.000 0.595 0.000
H4 1.566 -1.688 0.000
H5 -1.547 -2.311 0.000
H6 -0.127 -3.557 0.000

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6
C11.38922.14171.10102.18922.1534
C21.38923.13652.19041.09951.1032
I32.14173.13652.76853.29214.1537
H41.10102.19042.76853.17522.5218
H52.18921.09953.29213.17521.8894
H62.15341.10324.15372.52181.8894

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 122.780 C1 C2 H6 119.088
C2 C1 I3 123.925 C2 C1 H4 122.774
I3 C1 H4 113.301 H5 C2 H6 118.131
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability