Metal phosphonate hybrid materials: from densely layered to hierarchically nanoporous structures

Abstract

Inorganic–organic metal phosphonate hybrid materials with great diversity in structure and properties exhibit application potential in various fields.

Modification and Potential Applications of Organic–Inorganic Non-Siliceous Hybrid Materials

“…Under pH conditions close to the isoelectric point, the adsorption of lysozyme on aluminum phosphonate hybrid materials was dominated by host-guest hydrophobicity-hydrophobicity interactions [21]. Interestingly, unlike inorganic framework adsorbents used for the adsorption of proteins [22], the porous phosphonate hybrid adsorbents had an organic-inorganic framework, which contains plenty of hydrophobic alkyl groups inside the framework [21].…”

“…This indicated that, in addition to hydrophobic interactions, suitable polarization of the crystalline mesoporous phosphonates is responsible for the effective separation of benzene and nitrobenzene. Since the separation efficiency mainly depends on the host-guest interactions between stationary and mobile phases, such as hydrophobicity-hydrophobicity interaction, polarity, and intermolecular forces, phosphonate hybrid materials, constructed by long alkyl chains [21], multidimensional linkages [26,27], or phosphonic linkers with polar pendant groups [28,29], can also be used in chromatography techniques, and this is worth exploring. Three non-, micro-and mesoporous Cd-MOF isomers were used to prepare mesoMOF, and the resultant Reprinted with permission from Ref.…”

Photoluminescent lead(II) coordination polymers stabilised by bifunctional organoarsonate ligands

“…The coordination chemistry of metal phosphonates has received significant attention over the last decades due to a number of industrial foreseeable applications of the compounds [17, 18]; phosphonates have been used to prepare zero-dimensional molecular species and coordination polymers [19–25]. To date, diverse bi-functional organophosphonic acid ligands containing various functional auxiliary groups (crown ether, amine, hydroxyl, and/or carboxylate, etc) have been used to control the formation and properties of CP [26–33].…”

Acid–Base Bifunctional Hf Nanohybrids Enable High Selectivity in the Catalytic Conversion of Ethyl Levulinate to γ-Valerolactone

“…catalysts, thus greatly increasing specific surface areas [42,43], and the catalyst functionalities can be simply tuned by changing the organic ligand or preparation method [44]. In the presented study, a novel and stable inorganic-organic metal phosphonate catalyst (PPOA-Hf) was prepared from phenylphosphonic acid (PPOA) and hafnium (Hf, in the same group as Zr on the periodic table) chloride using a simple assembly method.…”

“…Organic phosphonates as ligands combined with metal ions can react quickly under liquid-phase conditions to afford corresponding inorganic-organic metal phosphonates with enhanced chemical and thermal stability [35][36][37][38][39][40][41]. Through the coordination of metal ions with organic phosphoric acid, additional micro-and mesopores are introduced into the resulting catalysts, thus greatly increasing specific surface areas [42,43], and the catalyst functionalities can be simply tuned by changing the organic ligand or preparation method [44]. In the presented study, a novel and stable inorganic-organic metal phosphonate catalyst (PPOA-Hf) was prepared from phenylphosphonic acid (PPOA) and hafnium (Hf, in the same group as Zr on the periodic table) chloride using a simple assembly method.…”