Supramolecular D⋯A-layered structures based on germanium complexes with 2,3-dihydroxynaphthalene and <i>N</i>,<i>N</i>′-bidentate ligands
Pavel G. Shangin, I. V. Krylova, Andrey V. Lalov, Anna Ya. Kozmenkova, Evgeniya A. Saverina, Petr A. Buikin, Аlexander А. Korlyukov, Alyona A. Starikova, Elena N. Nikolaevskaya, Mikhail P. Egorov, Mikhail A. Syroeshkin
Abstract
). All this together makes it possible to form a system with a narrow HOMO/LUMO gap (∼2 eV). The crystal structure of 3 consists of alternating monomolecular easily oxidizing and easily reducing layers formed due to intermolecular interactions, in particular π-stacking. In addition, in contrast to 1 that starts to decompose noticeably at the temperatures from 200 °C, 2 and 3 have an extremely high thermal stability. They remain stable with no signs of decomposition and melting up to 400 °С. We believe that this approach to the formation of the supramolecular structure may present prospects for obtaining new functional materials.