Expandable Layered Hybrid Materials Based on Individual 1D Metalorganic Nanoribbons

Abstract

Different metalorganic lamellar hybrid materials based on associated nanoribbons were synthesized by the use of alkyl–benzyl monocarboxylate spacers, containing alkyl tails with variable lengths, which acted like structural growing inhibitors. These molecular agents were perpendicularly located and coordinated to aluminium nodes in the interlayer space, controlling the separation between individual structure sub-units. The hybrid materials were studied by X-ray diffraction (XRD), chemical and thermogravimetrical analysis (TGA), nuclear magnetic resonance (NMR) and infrared spectroscopy (IR), and field emission scanning electron microscopy (FESEM)/transmission electron microscopy (TEM), showing their physicochemical properties. The specific capacity of the metalorganic materials to be exfoliated through post-synthesis treatments, using several solvents due to the presence of 1D structure sub-units and a marked hydrophobic nature, was also evidenced.

Deciphering the photobehaviour of ensemble and single crystals of Zr-based ITQ MOF composites

“…Recently, we have reported on studies of a 2D-MOFs based on Al clusters (Al-ITQ-HB) [16][17][18] and their composites when adsorbing Nile Red (NR) molecules. [19][20][21] This MOF, which presents high photocatalytic activity in water [22], shows promising properties as chemical support, favouring the interactions between neighbouring organic molecules located on its surface, giving rise to long-photoinduced energy transfer (ET) processes (0.3 -2 ns).…”

Synthesis, characterization & catalysis of ITQ 2D metal–organic frameworks and spectroscopic & photodynamic properties of their composites with organic dyes

“…The sub-domains are then organized and assembled along different dimensionalities and morphologies. 13,20…”

“…The sub-domains are then organized and assembled along different dimensionalities and morphologies. 13,20 These metal-organic structures are formed by inorganic chains composed of the association of metal octahedra, being the most frequent AlO 4 (OH) 2 . These are coordinated with monotopic organic spacers, generating 1D organic-inorganic structural units whose long-range associations form further families of MOF-type materials, depending on the nature of the metallic nodes used and the characteristics of the organic spacers involved in the solvothermal synthesis process.…”