MeSi(CH
| Autor: | Jihed, Ayari, Christian R, Göb, Iris M, Oppel, Michael, Lutter, Wolf, Hiller, Klaus, Jurkschat |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Angewandte Chemie (International Ed. in English) |
| ISSN: | 1521-3773 |
| Popis: | The syntheses of the novel silicon‐bridged tris(tetraorganotin) compounds MeSi(CH2SnPh2R)3 (2, R=Ph; 5, R=Me3SiCH2) and their halogen‐substituted derivatives MeSi(CH2SnPh(3−n)In)3 (3, n=1; 4, n=2) and MeSi(CH2SnI2R)3 (6, R=Me3SiCH2) are reported. The reaction of compound 4 with di‐t‐butyltin oxide (t‐Bu2SnO)3 gives the oktokaideka‐nuclear (18‐nuclear) molecular diorganotin oxide [MeSi(CH2SnPhO)3]6 (7) while the reaction of 6 with sodium hydroxide, NaOH, provides the trikonta‐nuclear (30‐nuclear) molecular diorganotin oxide [MeSi(CH2SnRO)3]10 (8, R=Me3SiCH2). Both 7 and 8 show belt‐like ladder‐type macrocyclic structures and are by far the biggest molecular diorganotin oxides reported to date. The compounds have been characterized by elemental analyses, electrospray mass spectrometry (ESI‐MS), NMR spectroscopy, 1H DOSY NMR spectroscopy (7), IR spectroscopy (7, 8), and single‐crystal X‐ray diffraction analysis (2, 7, 8). The first representatives of a new generation of large molecular diorganotin oxides showing Reuleaux triangle‐shaped (7) and heart‐formed (8) structures are reported. Based on simple syntheses of a great variety of precursor molecules, the concept holds enormous potential for future work in supramolecular chemistry involving main‐group elements and beyond. |
| Databáze: | OpenAIRE |
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