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

using model chemistry: MP2=FULL/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 MP2=FULL/3-21G*
 hartrees
Energy at 0K-6965.243381
Energy at 298.15K 
HF Energy-6964.927431
Nuclear repulsion energy186.627317
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=FULL/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' 3274 3104 2.15 69.28 0.58 0.74
2 A' 3243 3074 4.08 99.56 0.28 0.44
3 A' 3177 3012 0.44 124.92 0.20 0.34
4 A' 1641 1556 21.35 6.44 0.75 0.85
5 A' 1481 1404 19.31 11.52 0.47 0.64
6 A' 1325 1256 56.11 9.13 0.30 0.46
7 A' 1073 1017 6.47 4.46 0.67 0.80
8 A' 551 523 10.53 7.44 0.21 0.35
9 A' 315 299 0.13 6.89 0.41 0.58
10 A" 1012 959 52.60 0.36 0.75 0.86
11 A" 968 918 18.38 0.04 0.75 0.86
12 A" 568 538 17.91 10.87 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9313.9 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 8829.6 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=FULL/3-21G*
ABC
1.73644 0.10372 0.09787

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.477 -1.506 0.000
C2 -0.455 -2.465 0.000
I3 0.000 0.590 0.000
H4 1.544 -1.695 0.000
H5 -1.518 -2.252 0.000
H6 -0.158 -3.511 0.000

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6
C11.33742.14981.08372.12952.1034
C21.33743.08942.14231.08411.0871
I32.14983.08942.75763.22224.1046
H41.08372.14232.75763.11202.4893
H52.12951.08413.22223.11201.8533
H62.10341.08714.10462.48931.8533

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 122.802 C1 C2 H6 119.999
C2 C1 I3 123.031 C2 C1 H4 124.128
I3 C1 H4 112.840 H5 C2 H6 117.200
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability