The role of halogen bonding (XB) in metal-containing crystal structures has been recently reviewed and the focus was on the wide variety of metal-ligand moieties that exhibit propensity to form XB thus inducing designed structural, conductive and magnetic properties [1,2]. Halogen bonding (XB) is any D•••X-Y interaction wherein X is an electrophilic halogen atom (Lewis acid, halogen bonding donor), D is an electron density donor (Lewis base, halogen bonding acceptor) and Y is C, N, halogen, etc. [3]. If a metal bears ligands suitable to behave as donor site the interaction with XB acceptor, a network in a supramolecular architecture originates. Despite the virtually unlimited opportunities this type of flexible metal-ligand adducts opens to crystal engineering, few such systems have been reported in the literature.
Metal-organic-supramolecular polymers based on halogen bonding: unprecedented polymers with tunable properties
BERTANI, ROBERTA;SGARBOSSA, PAOLO;
2010
Abstract
The role of halogen bonding (XB) in metal-containing crystal structures has been recently reviewed and the focus was on the wide variety of metal-ligand moieties that exhibit propensity to form XB thus inducing designed structural, conductive and magnetic properties [1,2]. Halogen bonding (XB) is any D•••X-Y interaction wherein X is an electrophilic halogen atom (Lewis acid, halogen bonding donor), D is an electron density donor (Lewis base, halogen bonding acceptor) and Y is C, N, halogen, etc. [3]. If a metal bears ligands suitable to behave as donor site the interaction with XB acceptor, a network in a supramolecular architecture originates. Despite the virtually unlimited opportunities this type of flexible metal-ligand adducts opens to crystal engineering, few such systems have been reported in the literature.Pubblicazioni consigliate
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