• Top library match: 1-Chloro-2-iodobenzene #113

• All listed library similarities are 0.000, S-O the nearest hit is not a meaningful spectral match.
• There are no supporting group assignments or characteristic supporting peaks linking the sample specifically to 1-Chloro-2-iodobenzene.
• The observed peaks do not show a distinctive set of bands that would securely confirm aryl chloride, aryl iodide, alcohol, nitrile, ester, or polymer assignments among the competing candidates.
• The fingerprint-region evidence is too sparse to distinguish between substituted aromatic, oxygenated organic, or other small-molecule organic possibilities.
• Any halogen assignment remains speculative because characteristic support for C-Cl or C-I is not established from the present peak list.
• The current data do not show enough characteristic bands to separate a discrete small molecule from possible mixed or impure organic material.

Recommended next steps: Recollect the FTIR spectrum over the full range with improved signal quality, especially below 1000 cm-1, where substituted aromatic and carbon-halogen bands are often more informative. Check whether additional bands are present near the aromatic C-H stretching region around 3000 cm-1 and the out-of-plane aromatic substitution region around 900-650 cm-1 to test the substituted benzene possibility. If available, confirm composition with GC-MS or LC-MS for a small-molecule sample, or complementary Raman spectroscopy if aromatic substitution pattern information is needed. If the sample is suspected to be halogenated, elemental screening such as XRF or MS isotope-pattern analysis would help verify the presence of Cl or I before accepting the library hit.