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Infinite Polyiodide Chains in the Pyrroloperylene–Iodine Complex: Insights into the Starch–Iodine and Perylene–Iodine Complexes
Author(s) -
Madhu Sheri,
Evans Hayden A.,
DoanNguyen Vicky V. T.,
Labram John G.,
Wu Guang,
Chabinyc Michael L.,
Seshadri Ram,
Wudl Fred
Publication year - 2016
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201601585
Subject(s) - iodine , chemistry , raman spectroscopy , starch , crystal structure , perylene , crystallography , polymer , molecule , organic chemistry , physics , optics
Abstract We report the preparation and X‐ray crystallographic characterization of the first crystalline homoatomic polymer chain, which is part of a semiconducting pyrroloperylene–iodine complex. The crystal structure contains infinite polyiodide I ∞ δ− . Interestingly, the structure of iodine within the insoluble, blue starch–iodine complex has long remained elusive, but has been speculated as having infinite chains of iodine. Close similarities in the low‐wavenumber Raman spectra of the title compound and starch–iodine point to such infinite polyiodide chains in the latter as well.