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Bioinspired Metal‐Organic Frameworks in Mixed Matrix Membranes for Efficient Static/Dynamic Removal of Mercury from Water (Advanced Functional Materials, In press))

The mercury removal efficiency of a novel metal‐organic framework (MOF) derived from the amino acid S‐methyl‐L‐cysteine is presented and the process is characterized by single‐crystal X‐ray crystallography. A feasibility study is further presented on the performance of this MOF—and also that of another MOF derived from the amino acid L‐methionine—when used as the sorbent in mixed matrix [...]

Cyclic metal(oid) clusters control platinum-catalysed hydrosilylation reactions: from soluble to zeolite and MOF catalysts (Chem. Sci., 2020, Advance Article)

Chem. Sci., 2020, 11, 8113-8124 Abstract: The Pt-catalysed addition of silanes to functional groups such as alkenes, alkynes, carbonyls and alcohols, i.e. the hydrosilylation reaction, is a fundamental transformation in industrial and academic chemistry, often claimed as the most important application of Pt catalysts in solution. However, the exact nature of the Pt active species and its […]

Hydrolase–like catalysis and structural resolution of natural products by a metal–organic framework (Nature Communications, Article number: 3080 (2020)).)

Nature Communications, Article number: 3080 (2020) Abstract: The exact chemical structure of non–crystallising natural products is still one of the main challenges in Natural Sciences. Despite tremendous advances in total synthesis, the absolute structural determination of a myriad of natural products with very sensitive chemical functionalities remains undone. Here, we show that a metal–organic framework [...]

Isolating Reactive Metal-based Species in Metal-organic Frameworks – Viable Strategies and Opportunities (Chem. Sci., 2020, 11, 4031-4050)

Chem. Sci., 2020, 11, 4031-4050 Abstract: Structural insight into reactive species can be achieved via strategies such as matrix isolation in frozen glasses, whereby species are kinetically trapped, or by confinement within the cavities of host molecules. More recently, Metal-organic Frameworks (MOFs) have been used as molecular scaffolds to isolate reactive metal-based species within their [...]

Bio-metal-organic frameworks for molecular recognition and sorbent extraction of hydrophilic vitamins followed by their determination using HPLC-UV (Microchimica Acta volume 187, Article number: 201 (2020))

A bio-metal-organic framework (bio-MOF) derived from the amino acid L-serine has been prepared in bulk form and evaluated as sorbent for the molecular recognition and extraction of B-vitamins. The functional pores of bio-MOF exhibit high amounts of hydroxyl groups jointly directing other supramolecular host-guest interactions thus providing the recognition of B-vitamins in fruit juices and energy [...]

Glassy PEEK-WC vs rubbery Pebax®1657 polymers: effect on the gas transport in CuNi-MOF based mixed matrix membranes (Appl. Sci. 2020, 10(4), 1310)

Mixed matrix membranes (MMMs) are seen as promising candidates to overcome the fundamental limit of polymeric membranes, known as the so-called Robeson upper bound, which defines the best compromise between permeability and selectivity of neat polymeric membranes. To overcome this limit, the permeability of the filler particles in the MMM must be carefully matched with [...]

MOFs as chemical nano-reactors: synthesis and stabilization of catalytically active metal species in confined spaces (Acc. Chem. Res. 2020, 53, 2, 520-531)

Acc. Chem. Res. 2020, 53, 2, 520-531 Since the advent of the first metal-organic frameworks (MOFs), we have witnessed an explosion of captivating architectures with exciting physicochemical properties and applications in a wide range of fields. This, in part, can be understood under the light of their rich host-guest chemistry and the possibility to use [...]

Self-assembly of catalytically-active supramolecular coordination compounds within metal-organic frameworks (J. Am. Chem. Soc. 2019, 141, 26, 10350-10360)

Supramolecular Coordination Compounds (SCCs) represent the power of Coordination Chemistry methodologies to self-assemble discrete architectures with targeted properties. SCCs are generally synthesised in solution, with isolated fully-coordinated metal atoms as structural nodes, thus severely limited as metal-based catalysts. Metal-Organic Frameworks (MOFs) show unique features to act as chemical nanoreactors for the in-situ synthesis and stabilization [...]

Magnetic order in a CuII-DyIII oxamato-based two-dimensional coordination polymer (C. R. Chimie 22 (2019) 466-475)

We report the synthesis, crystal structure and magnetic characterization of a novel two-dimensional copper(II)-dysprosium(III) coordination polymer of formula [LiI(OH2)4]2[DyIIICuII2(Me2pma)4Cl(H2O)] . 4H2O (1) [Me2pma = N-2,6-dimethylphenyloxamate]. Compound 1 was obtained by using the mononuclear anionic complex, [CuII(Me2pma)2]2-, as a bis(bidentate) metalloligand toward solvated dysprosium(III) cations and shows a square [DyIIICuII2] layered structure of (44.62) net topology. [...]

Efficient Gas Separation and Transport Mechanism in Rare Hemilabile Metal-Organic Framework (Chem. Mater. 2019, 31, 15, 5856-5866)

Understanding/visualizing the established interactions between gases and adsorbents is mandatory to implement better performance materials in adsorption/separation processes. Here we report the unique behavior of a rare example of a hemilabile chiral three-dimensional metal-organic framework (MOF) with an unprecedented qtz-e-type topology, with formula CuII2(S,S)-hismox·5H2O (1) (hismox = bis[(S)-histidine]oxalyl diamide). 1 exhibits a continuous and reversible [...]

Multivariate Metal-Organic Frameworks for the Simultaneous Capture of Organic and Inorganic Contaminants from Water (J. Am. Chem. Soc. 2019, 141, 34, 13601-13609)

We report a new water-stable multivariate (MTV) Metal-Organic Framework (MOF) prepared by combining two different oxamide-based metalloligands derived from the natural amino acids L-serine and L-methionine. This unique material features hexagonal channels decorated with two types of flexible and functional 'arms' (-CH2OH and -CH2CH2SCH3) capable to act, synergistically, for the simultaneous and efficient removal of [...]

Metal−Organic Frameworks as Playgrounds for Reticulate Single-Molecule Magnets (Inorg. Chem. 2019, 58, 21, 14498-14506)

Achieving an accurate control on the final structure of Metal-Organic Frameworks (MOFs) is mandatory to obtain target physical properties. Here we describe how the combination of a metalloligand design strategy and a post-synthetic method is a versatile and powerful approach to success on this extremely difficult task. In a first stage, a novel oxamato-based tetranuclear [...]