A world beyond hydrogen bonds?

• Verfasst von: Gleiter, Rolf [VerfasserIn]
• Verfasst von: Werz, Daniel B. [VerfasserIn]
• Verfasst von: Rausch, Bernhard J. [VerfasserIn]
• Titel: A world beyond hydrogen bonds?
• Titelzusatz: Chalcogen-chalcogen interactions yielding tubular structures
• Verf.angabe: Rolf Gleiter, Daniel B. Werz, and Bernhard J. Rausch
• E-Jahr: 2003
• Jahr: 21 May 2003
• Umfang: 8 S.
• Fussnoten: Gesehen am 21.10.2020
• Titel Quelle: Enthalten in: Chemistry - a European journal
• Ort Quelle: Weinheim : Wiley-VCH, 1995
• Jahr Quelle: 2003
• Band/Heft Quelle: 9(2003), 12, Seite 2676-2683
• ISSN Quelle: 1521-3765
• DOI: doi:10.1002/chem.200204684
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: alkynes
• Sach-SW: chalcogens
• Sach-SW: host-guest systems
• Sach-SW: noncovalent interactions
• Sach-SW: self-assembly
• K10plus-PPN: 1736141570

Abstract

It is shown that tubular structures arise in the solid state through close chalcogen-chalcogen (X⋅⋅⋅X) contacts. As examples a variety of cyclic systems containing sulfur and selenium centers is presented. Common to all of them are close contacts between the chalcogen centers of neighboring stacks giving rise to a zigzag or ladder-type arrangement. In the case of cyclic systems of ring size 24-33 the resulting tubes are able to include hydrocarbons as guest molecules. For 2,7-ditelluraocta-3,5-diyne (17) the close contacts between the tellurium centers of the acyclic C2 symmetric building blocks generate a helical arrangement in which n-hexane was included. The favored X⋅⋅⋅X contacts can be traced back to np(X)-σ*(XC) interactions.