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Structure and Reactivity of 1,8-Bis(naphthalenediyl)dipnictanes

MPG-Autoren
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Auer,  Alexander A.
Research Group Auer, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Zitation

Dzialkowski, K., Gehlhaar, A., Wölper, C., Auer, A. A., & Schulz, S. (2019). Structure and Reactivity of 1,8-Bis(naphthalenediyl)dipnictanes. Organometallics, 38(15), 2927-2942. doi:10.1021/acs.organomet.9b00269.


Zitierlink: https://hdl.handle.net/21.11116/0000-0004-96F7-C
Zusammenfassung
Syntheses and solid-state structures of diarsane Naph2As2 (Naph = 1,8-naphthalenediyl, 1) and (Naph)5Sb4Cl2 3 are reported and the σ-donor capacity of Naph2E2 (E = As 1, Sb 2) was studied in reactions with (coe)Cr(CO)5 (coe = Z-cyclooctene), yielding [Naph2As2][Cr(CO)5]2 (4) and [Naph2E2][Cr(CO)5] (E = As 5, Sb 6). In contrast, reactions of 1 and 3 with Me2SAuCl proceed with oxidation and formation of elemental gold as well as Naph2(AsCl)2 (7) and [NaphSbCl2]2 8. All complexes were characterized by elemental analyses, heteronuclear (1H, 13C) NMR and FT-IR spectroscopy, as well as single crystal X-ray diffraction. Intermolecular E···π interactions (E = As, Sb), which were observed in 7 and 8, were quantified by use of density functional theory and local coupled cluster electronic structure theory calculations. These allow to assess the nature and relative importance of covalent and noncovalent interactions and illustrate how dispersion interactions change with the electronic structure of the compounds.