Coordination networks incorporating halogen-bond donor sites and azobenzene groups. Issue 13 (1st March 2016)

• Record Type: Journal Article
• Authors: Fernandez-Palacio, Francisco; Saccone, Marco; Priimagi, Arri; Terraneo, Giancarlo; Pilati, Tullio; Metrangolo, Pierangelo; Resnati, Giuseppe
• Is Part Of: CrystEngComm. Volume 18:Issue 13(2016)
• Page Start: 2251
• Page End: 2257
• Publication Date: 2016-03-01
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/c6ce00059b
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : A coordination network decorated with halogen-bond donor sites for specific guest binding. Abstract : Two Zn coordination networks, {[Zn(1 )(Py)2 ]2 (2-propanol)} n (3 ) and {[Zn(1 )2 (Bipy)2 ](DMF)2 } n (4 ), incorporating halogen-bond (XB) donor sites and azobenzene groups have been synthesized and fully characterized. Obtaining3 and4 confirms that it is possible to use a ligand wherein its coordination bond acceptor sites and XB donor sites are on the same molecular scaffold ( i.e., an aromatic ring) without interfering with each other. We demonstrate that XBs play a fundamental role in the architectures and properties of the obtained coordination networks. In3, XBs promote the formation of 2D supramolecular layers, which, by overlapping each other, allow the incorporation of 2-propanol as a guest molecule. In4, XBs support the connection of the layers and are essential to firmly pin DMF solvent molecules through I⋯O contacts, thus increasing the stability of the solvated systems.