A Flexible Synthetic Strategy for the Preparation of Heteroleptic Metallacycles of Porphyrins
| العنوان: | A Flexible Synthetic Strategy for the Preparation of Heteroleptic Metallacycles of Porphyrins |
|---|---|
| المؤلفون: | Elisabetta Iengo, Enzo Alessio, Federica Battistin, Alessio Vidal, Gabriele Balducci |
| المساهمون: | Vidal, A., Battistin, F., Balducci, G., Iengo, E., Alessio, E. |
| المصدر: | Inorganic Chemistry |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Metal-mediated self-assembly, Molecular model, Chemistry, Supramolecular chemistry, chemistry.chemical_element, Metallacycle, Porphyrin, Metallacycles, Ruthenium, Article, Inorganic Chemistry, Crystallography, chemistry.chemical_compound, Yield (chemistry), Physical and Theoretical Chemistry, Coordination site |
| الوصف: | We present a stepwise synthetic strategy for the preparation of the unprecedented heteroleptic 2+2 neutral metallacycle [{t,c,c-RuCl2(CO)2}2(4′cisDPyP)(3′cisDPyP)] (5), in which two different 5,10-meso-dipyridylporphyrins, 4′cisDPyP [i.e., 5,10-bis(4′-pyridyl)-15,20-diphenylporphyrin] and 3′cisDPyP [i.e., 5,10-bis(3′-pyridyl)-15,20-diphenylporphyrin], are joined through equal 90°-angular Ru(II) connectors. The synthesis of 5 was accomplished through the preparation of a reactive ditopic intermediate in which one of the two pyridylporphyrins is linked to two neutral ruthenium fragments, each having one residual readily available coordination site (a dmso-O). Thus, compound 5 was obtained under mild conditions through two complementary routes: either by treatment of [{t,c,c-RuCl2(CO)2(dmso-O)}2(4′cisDPyP)] (3) with 1 equiv of 3′cisDPyP or, alternatively, by treatment of [{t,c,c-RuCl2(CO)2(dmso-O)}2(3′cisDPyP)] (4) with 1 equiv of 4′cisDPyP. Heteroleptic metallacycle 5 was isolated in pure form in acceptable yield and fully characterized. Spectroscopic data and a molecular model show that 5 has an L-shaped geometry, with the two porphyrins almost orthogonal to one another. The modular approach that we established is highly flexible and opens the way to several possible exciting developments. The unprecedented heteroleptic 2+2 neutral metallacycle [{t,c,c-RuCl2(CO)2}2(4′cisDPyP)(3′cisDPyP)] (5), which features two different 5,10-meso-dipyridylporphyrins and has an L-shaped geometry, was isolated in pure form through a flexible stepwise synthetic approach. |
| وصف الملف: | STAMPA |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::195d4e97658e9f7310d845ef2c010bed http://hdl.handle.net/11368/2993591 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....195d4e97658e9f7310d845ef2c010bed |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |