Halogen bonding modulates hydrogel formation from Fmoc amino acids. Issue 14 (2nd March 2017)

• Record Type: Journal Article
• Authors: Pizzi, A.; Lascialfari, L.; Demitri, N.; Bertolani, A.; Maiolo, D.; Carretti, E.; Metrangolo, P.
• Is Part Of: CrystEngComm. Volume 19:Issue 14(2017)
• Page Start: 1870
• Page End: 1874
• Publication Date: 2017-03-02
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/c7ce00031f
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : Iodine⋯pi halogen bonding is crucial to the self-assembly of brominated and iodinated Fmoc-phenylalanines. Abstract : The single crystal X-ray structures of a series of p -halogenated Fmoc phenylalanines highlight the role of halogen bonding in their supramolecular organization in the solid state. The amino acids showing the occurrence of halogen bonding resulted in gels with the strongest mechanical properties. All gelation parameters could be ranked according to halogen atom polarizability, i.e., halogen bond strength.