A Family of Cagelike Mn-Silsesquioxane/Bathophenanthroline Complexes: Synthesis, Structure, and Catalytic and Antifungal Activity
Аlexey N. Bilyachenko, Evgenii I. Gutsul, Victor N. Khrustalev, Olga Chusova, Павел В. Дороватовский, Vusala A. Aliyeva, Ana B. Paninho, Ana V. M. Nunes, Kamran T. Mahmudov⧫, Elena S. Shubina, Armando J. L. Pombeiro
Abstract
This study reports a novel family of cage manganesesilsesquioxanes prepared via complexation with bathophenanthroline (4,7-diphenyl-1,10-phenanthroline). The resulting Mn 4 -, Mn 6 Li 2 -, and Mn 4 Na-compounds exhibit several unprecedented cage metallasilsesquioxane structural features, including intriguing self-assembly of silsesquioxane ligands. Complexes were tested in vitro for fungicidal activity against seven classes of phytopathogenic fungi. The representative Mn 4 Na-complex acts as a catalyst in the cycloaddition of CO 2 to epoxides under solvent-free conditions to form cyclic carbonates in good yields.