Year: 2025
Type: article
Abstract: The first example of a mixed halogen(I) complex (2), containing three distinct iodine(I) moieties ([N―I―N]+, O―I―N, and [O―I―O]−) within the same structure, was synthesized with 4‐styrylpyridine (4‐stypy) and 3,4,5,6‐tetrafluorophthalate as the stabilizing Lewis bases. This complex was observed to be in equilibrium with its respective bis(OIN) complex (1a), with isolated samples of 2 also being found to convert to 1a in solution. Upon UV irradiation of 2, a single‐crystal‐to‐single‐crystal [2 + 2] cycloaddition reaction was observed, converting the discrete salt 2 to the 1D polymer 5. Complex 5 retained all the iodine(I) moieties from prior to photoconversion and represents the first example of nondestructive photoconversion of a halogen(I) complex. To facilitate comparisons to 2 and 5, several additional closely related iodine(I) complexes were synthesized, with the iodine(I) complexes characterized by NMR (1H, 1H‐15N HMBC) and SCXRD, as well as by Raman and IR spectroscopy for 2, 5, and their close structural analogue 1a.
Source: Angewandte Chemie
Authors: Jas S. Ward, Aaron Mailman
Institution: University of Jyväskylä
Language: English
Subfield: Physical and Theoretical Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $5,790
OpenAlex ID: W4409080397