Main group metal lone-pair⋯π(arene) interactions: a new bonding mode for supramolecular associations. Issue 37 (15th August 2016)

• Record Type: Journal Article
• Authors: Caracelli, Ignez; Zukerman-Schpector, Julio; Haiduc, Ionel; Tiekink, Edward R. T.
• Is Part Of: CrystEngComm. Volume 18:Issue 37(2016)
• Page Start: 6960
• Page End: 6978
• Publication Date: 2016-08-15
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/c6ce01460g
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : Main group element(lone-pair)⋯π(arene) interactions provide points of contact, independently of other supramolecular synthons, in their crystal structures. Abstract : Crystal structures of the heavier main group elements in low oxidation states have been evaluated for the presence of supramolecular element(lp)⋯π(arene) interactions that are structure-directing. It is revealed that when present, these interactions lead to zero-dimensional, binuclear aggregates but higher-nuclearity species are sometimes observed, with one-dimensional supramolecular chains of varying topology being prominent. By contrast, two-dimensional aggregation based on element(lp)⋯π(arene) interactions are rare. In summary, interactions of main group metal lone-pairs with aromatic rings are revealed as synthons capable of assembling molecules into supramolecular aggregates.