In 2022,Tarrio, Juan Jose; Rodriguez, Rafael; Fernandez, Berta; Quinoa, Emilio; Freire, Felix published an article in Angewandte Chemie, International Edition. The title of the article was 《Dissymmetric Chiral Poly(diphenylacetylene)s: Secondary Structure Elucidation and Dynamic Luminescence》.Synthetic Route of C7H5IO2 The author mentioned the following in the article:
The secondary structure of a dissym. and chiral poly(diphenylacetylene) (PDPA) is elucidated by combining the data from NMR experiments (regioregular head to tail structure), Raman and IR studies (E configuration of the polyene double bonds), and high-resolution AFM images (helical pitch, packing angle and orientation of the external helix). As a result, an E-transoidal polyene backbone describing 3 coaxial helixes is obtained. Theor. electronic CD (ECD) studies of the structure show a good correspondence between exptl. and theor. data and allow one to decipher that the first Cotton band is generated by the poly(diphenylacetylene) core and not only by the polyene backbone. The dynamic behavior of poly-(S)-2 is also demonstrated by a helix inversion effect produced by conformational changes at the pendant groups when annealed in solvents with different donor abilities. This phenomenon is accompanied by an inversion of the circular polarized luminescence of the PDPA (CPL switch). In the experimental materials used by the author, we found 4-Iodobenzoic acid(cas: 619-58-9Synthetic Route of C7H5IO2)
4-Iodobenzoic acid(cas: 619-58-9) belongs to organic iodides. Generally organic iodides can be divided into two classes of alkyl iodides and aryl iodides. Typical reactions of alkyl iodides include nucleophilic substitution, elimination, reduction, and the formation of organometallics.Synthetic Route of C7H5IO2Halogenation of aromatic hydrocarbons is a very important reaction via an electrophilic aromatic substitution.
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com