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Now showing items 1321-1340 of 13947
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Tuning photoactive metal–organic frameworks for luminescence and photocatalytic applications
(2021)Metal-organic frameworks (MOFs) are a class of porous materials, constructed from organic and inorganic components. MOFs have been explored for a diverse range of applications due to their tunable structures, porosities, ... -
Altering the nature of coupling by changing the oxidation state in a {Mn6} cage
(2020)Polynuclear transition metal complexes have continuously attracted interest owing to their peculiar electronic and magnetic properties which are influenced by the symmetry and connectivity of the metal centres. Understanding ... -
A cubane-type manganese complex with H2O oxidation capabilities
(2020)We report the synthesis and characterisation of [Mn8K2O4(OH)2((CH3)3CCOO)16(CH3CN)2] whose cluster core shares some features with the oxygen evolving complex (OEC), the natural water oxidation catalyst. Importantly, this ... -
Hyper-crosslinked 4-amino-1,8-naphthalimide Tröger’s base containing pyridinium covalent organic polymer (COP) for discriminative fluorescent sensing of chemical explosives
(2020)A new hyper-crosslinked 4-amino-1,8-naphthalimide Tröger’s base containing pyridinium covalent organic polymer, TBNap-COP, was synthesised and employed as a ‘turn-off’ fluorescent chemosensor for nitroaromatic explosives. ... -
Bioinspired Water Oxidation Using a Mn-Oxo Cluster Stabilized by Non-Innocent Organic Tyrosine Y161 and Plastoquinone Mimics
(2020)The complexity and energy demand of the H2O oxidation half-reaction represents the bottleneck for the development of sustainable, environmentally friendly H2 economies using H2O as energy feedstock. In Nature, photosynthetic ... -
Mixed donor, phenanthroline photoactive MOFs with favourable CO 2 selectivity
(2020)Mixed donor phenanthroline-carboxylate linkers were combined with MnII or ZnII to form photoactive MOFs with large pore apertures. The MOFs display high CO2 adsorption capacities, which consequently causes structural ... -
Assembly, disassembly and reassembly: a “top-down” synthetic strategy towards hybrid, mixed-metal {Mo10Co6} POM clusters
(2019)Polyoxometalates (POMs) are commonly prepared using a “bottom-up” synthetic procedure. The alternative “top-down” approach of disassembling a pre-formed POM unit to generate new synthetic intermediates is promising, but ... -
Node-Dependent Photoinduced Electron Transfer in Third-Generation 2D MOFs Containing Earth-Abundant Metal Ions
(2020)Five isostructural 2D metal–organic frameworks (MOFs), based on a photoactive CuI metallolinker and mixed mono-/dinuclear secondary building units (SBUs), are reported. The MOFs 1(M) (M = Mn, Co, Cu, Zn, and Cd) exhibit ... -
A highly augmented, (12,3)-connected Zr-MOF containing hydrated coordination sites for the catalytic transformation of gaseous CO2 to cyclic carbonates
(2019)A porous Zr-based MOF, [Zr6(BTEB)4(μ3-O)4(μ3-OH)4(H2O)4], which contains partially hydrated, 12-connected {Zr6} nodes and extended carboxylate ligands (BTEB3−), was synthesized and physicochemically characterised. The ... -
"Turn-on" fluorescence sensing of volatile organic compounds using a 4-amino-1,8-naphthalimide Tröger's base functionalised triazine organic polymer
(2019)The 4-amino-1,8-naphthalimide Tröger's base functionalized triazine covalent organic polymer TB-TZ-COP was synthesised and employed as a “turn-on” fluorescent and a colorimetric sensor for the discriminative sensing of ... -
Flexible Metal−Organic Frameworks for Light-Switchable CO2 Sorption Using an Auxiliary Ligand Strategy
(2019)We report the synthesis and characterization of two photoactive metal–organic frameworks (MOFs), TCM-14 and TCM-15. The compounds were synthesized by incorporating 4,4′-azopyridine auxiliary ligands into pto-type scaffolds ... -
Light-harvesting, 3rd generation RuII/CoII MOF with a large, tubular channel aperture
(2019)A photoactive, hetero-metallic CoII/RuII-based metal–organic framework (MOF) with a large channel aperture, ca. 21 Å, is reported. The photophysical properties of the MOF are derived from the RuII nodes giving rise to ... -
Synthesis of new Mn19 analogues and their structural, electrochemical and catalytic properties
(2019)We report the synthesis and structural characterisation of new Mn19 and Mn18M analogues, [MnIII12MnII7(μ4-O)8(μ3-OCH3)2(μ3-Br)6(HLMe)12(MeOH)6]Br2 (2) and [MnIII12MnII6Sr(μ4-O8(μ3-Cl)8(HLMe)12(MeCN)6]Cl2 cluster (3), where ... -
Fe(III)-doped coordination polymer of Mn13-clusters with improved activity for oxygen reduction reaction
(2019)Fe(III) dopants have been introduced into a porous coordination polymer of Mn13-clusters to form composite materials. The resulting Fe@Mn13-polymer showed enhanced oxygen reduction reaction (ORR) activity, making it a ... -
Self-assembled bright luminescent hierarchical materials from a tripodal benzoate antenna and heptadentate Eu(III) and Tb(III) cyclen complexes
(2018)The europium heptadentate coordinatively unsaturated (Eu(III)) and the terbium (Tb(III)) 1,4,7,10-tetraazacyclododecane (cyclen) complexes 1 and 2 were used in conjunction with ligand 3 (1,3,5-benzene-trisethynylbenzoate) ... -
A Mn13-cluster based coordination polymer as a co-catalyst of CdS for enhanced visible-light driven H 2 evolution
(2018)A coordination cluster-based polymer was used for the first time as a noble-metal-free co-catalyst of CdS, giving rise to significantly enhanced photocatalytic H2 production. This work demonstrates the feasibility of cluster ... -
Multicomponent halide templating: The effect of structure-directing agents on the assembly of molecular and extended coordination compounds
(2018)This account covers template effects that lead to the formation of polynuclear coordination compounds, with a focus on how the interplay of the structure-directing effects of multiple agents (including inorganic anions and ... -
A Schiff-base cross-linked supramolecular polymer containing diiminophenol compartments and its interaction with copper(II) ions
(2018)We report here the preparation of a Schiff-base linked organic polymer 1 based on linkages containing the potent supramolecular aggregator benzene-1,3,5-tricarboxamide, connected through 2,6-diiminophenol metal binding ... -
Passing it up the ranks: hierarchical ion-size dependent supramolecular response in 1D coordination polymers
(2018)The synthesis and structural characterisations of four 1D coordination polymers based on the 1,3,5-tris(4-carboxyphenyl)benzene (H3btb) and 2,4,6-tris(2-pyridyl)-1,3,5-triazine (2-tpt) ligands are reported: [MII(Hbtb)(2- ... -
A Lanthanide luminescent cation exchange material derived from a flexible tricarboxylic acid 2,6-Bis(1,2,3-Triazol-4-yl)pyridine (btp) tecton
(2018)The synthesis of the three-dimensional metal–organic framework material, [Zn7L6]·(H2NMe2)4·(H2O)45 (1), derived from a flexible tricarboxylic acid 2,6-bis(1,2,3-triazol-4-yl)pyridine (btp) ligand, is presented. The btp ...
