52 research outputs found
Framework-isomerism:highly augmented copper(II) paddlewheel-based MOF with unusual (3,4)-net topology
The synthesis and structure of a new, highly augmented {Cu2} ‘paddlewheel’-based metal-organic framework (MOF) that is stabilized by tritopic benzoate ligands is reported. The structure adopts an uncommon, less-symmetrical (3,4)- connected net topology and represents a rare framework isomer of the extensively studied {Cu2}-based pto and tbo analogues. The concomitant formation of three isomeric forms using {Cu}2- ‘paddlewheel’ complexes and a single triangular, tri-functional ligand is unique and stems from the rotational flexibility of the benzoate moieties. Computational analyses support the structural studies and underline that this observed net topology can give rise to an exceptionally high surface area (>3500 m2/g), despite the triple-interpenetrated nature of the compound
Multimodal switching of a redox-active macrocycle
Molecules that can switch between multiple stable states in response to stimuli are promising for many applications, but are challenging to construct. Here, the authors design a resorcinarene switching manifold with multiple oxidation states and coupled charge-transfer states, which can access up to five distinct switch-states with unique optical outputs
Synthesis and characterization of two novel oxo-persulfido complexes with a doubly bridging heptasulfide(2-) ligand and an "end-to-end" bridging hydrazine ligand: [Et4N]2[{MO(S2)2}2(.mu.2-S7)(.mu.2-NH2NH2)].CH3CN (M = molybdenum, tungsten)
Solvent-Induced Aggregation through Metal···Metal/π···π Interactions: Large Solvatochromism of Luminescent Organoplatinum(II) Terpyridyl Complexes
Towards multifunctional lanthanide-based metal–organic frameworks
We report the synthesis, structure and physicochemical attributes of a new holmium(III)-based metal–organic framework whose 3Dnetwork structure gives rise to porosity; the reported structuretype can be varied using a range of different lanthanide ions to tunethe photophysical properties and produce ligand-sensitised nearinfrared (NIR) and visible light emitters
Structure of Colloidal Bismuth Subcitrate (CBS) in Dilute HCl:Â Unique Assembly of Bismuth Citrate Dinuclear Units ([Bi(cit) 2
Luminescent Metallogels of Bis-Cyclometalated Alkynylgold(III) Complexes
A series of luminescent bis-cyclometalated alkynylgoldÂ(III)
complexes
have been synthesized and characterized. Some of the complexes have
been demonstrated to exhibit gelation properties driven by π–π
stacking and hydrophobic–hydrophobic interactions. The gelation
properties have been investigated in detail through variable-temperature
UV–vis absorption and emission studies, and the morphology
of the gels has also been characterized by scanning electron microscopy
and transmission electron microscopy
Reactivity of Dioxoosmium(VI) Porphyrins toward Arylhydrazine. Isolation of Hydrazidoosmium and Amidoosmium Porphyrins
Luminescent Metallogels of Bis-Cyclometalated Alkynylgold(III) Complexes
A series of luminescent bis-cyclometalated alkynylgoldÂ(III)
complexes
have been synthesized and characterized. Some of the complexes have
been demonstrated to exhibit gelation properties driven by π–π
stacking and hydrophobic–hydrophobic interactions. The gelation
properties have been investigated in detail through variable-temperature
UV–vis absorption and emission studies, and the morphology
of the gels has also been characterized by scanning electron microscopy
and transmission electron microscopy
Novel Luminescent Hexanuclear Platinum(II) Alkynyl Complex:Â Molecular Lego from a Face-to-Face Dinuclear Platinum(II) Building Block
- …