The creation, analysis, and use of organic guest-containing layered double hydroxides

Abstract

Interest in creating inorganic-organic host-guest supramolecular structures using layered inorganic solids as host materials is on the rise. This
article provides an overview of layered double hydroxides (LDHs) including organic guests, including their synthesis, characterisation, and
applications. Stacks of mixed metal hydroxide layers, each with a positive charge, make up an LDH, and the presence of anions between the
layers is necessary to maintain the charge neutrality of the structure as a whole. Porphyrin and phthalocyanine derivatives, sulfonates,
phosphonates, aromatic and aliphatic carboxylates, and a host of other organic guests are all within the realm of possibility. We highlight
potential uses of organo-LDHs in photochemistry, electrochemistry, sorption, and catalysis. The ability to systematically construct new
inorganic-organic supramolecular structures is shown to be achievable using LDHs.