A functional FePt@MOFs (MIL-101(Fe)) nano-platform for high efficient colorimetric determination of HO.

The rapid and sensitive detection of H2O2 is of great importance for a series of industries. In this work, surface-modified FePt nanoparticles were loaded into metal-organic frameworks (MOFs, MIL-101(Fe)) in a facile in situ way and the resulting material (FePt@MOFs NCs) acted as a high efficient colorimetric detection agent. The as-prepared FePt@MOFs NCs possess a well-defined octahedron shape and high stability in water.

Tetraphenylethylene-Carborane-Tetraphenylethylene Triad: Influence of Steric Bridge on Aggregation-Induced Emission Properties.

A novel tetraphenylethylene (TPE)-bridge-tetraphenylethylene triad has been synthesized, where the o-carboranyl moiety functions as a central bridge and two TPE units are in the lateral positions. This molecular triad has been characterized by various spectroscopic methods, and its structure has been studied by X-ray crystallography as well as theoretical calculations. The impact of the bridging carboranyl unit on the aggregation-induced emission (AIE) characteristics of the TPE-bridge-TPE triad has been investigated.

Using highly emissive and environmentally sensitive -carborane-functionalized metallophosphors to monitor mitochondrial polarity.

Mitochondria as vital intracellular organelles play critical roles in multiple physiological processes, and their polarity is a crucial characteristic that can reveal the intracellular environment and impact cellular events. In this work, we designed and synthesized a novel series of highly emissive and environmentally sensitive phosphorescent iridium(iii) complexes (, and ) functionalized by -carborane. These complexes showed high emission quantum yields both in solution and in solid state (up to = 0.

A novel phosphorescent iridium(iii) complex bearing a donor-acceptor-type o-carboranylated ligand for endocellular hypoxia imaging.

The structure-property relationship of carborane-embedded cationic iridium(iii) complexes was investigated in this work, especially with donor-acceptor-type ligands. Firstly, an efficient synthetic approach for the new donor-acceptor-type ligands (2 and 4) was developed. By using these ligands, novel iridium(iii) complexes II and IV were prepared.

Facilitating Proton Transport in Nafion-Based Membranes at Low Humidity by Incorporating Multifunctional Graphene Oxide Nanosheets.

Nafion, as a state-of-the-art solid electrolyte for proton exchange membrane fuel cells (PEMFCs), suffers from drastic decline in proton conductivity with decreasing humidity, which significantly restricts the efficient and stable operation of the fuel cell system. In this study, the proton conductivity of Nafion at low relative humidity (RH) was remarkably enhanced by incorporating multifunctional graphene oxide (GO) nanosheets as multifunctional fillers. Through surface-initiated atom transfer radical polymerization of sulfopropyl methacrylate (SPM) and poly(ethylene glycol) methyl ether methacrylate, the copolymer-grafted GO was synthesized and incorporated into the Nafion matrix, generating efficient paths at the Nafion-GO interface for proton conduction.

Novel phosphorescent cationic iridium(iii) complexes with o-carboranylation on the ancillary N^N ligand.

A novel series of heteroleptic iridium complexes with 2-phenyl-pyridine as a main ligand and carborane-functionalized 2,2'-bipyridine as an ancillary ligand were synthesized, and characterized as [Ir(ppy)(By)]PF (where ppy is 2-phenyl-pyridine, By is 5-(2-R-Cb)-2,2'-bipyridine, R = H (2a), CH (2b), Ph (2c), iPr (2d) and iBu (2e), or By is 4-(2-R-Cb)-2,2'-bipyridine while R = H (3a), CH (3b), Ph (3c), iPr (3d) and iBu (3e), Cb = o-carboran-1-yl). The R groups and the substitution sites of carborane on the pyridine ring have caused differences in the emission properties of these complexes. In addition, the quantum efficiency of [Ir(ppy)(By)]PF complexes has been tuned as well through the introduction of various 2-R-substituted o-carboranes into the ancillary ligand 2,2'-bipyridine, no matter in the solid state (from 0.

Aggregation-Induced Emission Characteristics of o-Carborane-Functionalized Tetraphenylethylene Luminogens: The Influence of Carborane Cages on Photoluminescence.

Tetraphenylethylene (TPE)-carborane hybrids are constructed, and the impact of carborane substituents on the aggregation-induced emission (AIE) characteristics of TPE-cores has been investigated. When altering the 2-R-group on the carborane unit with -H, -CH or phenyl group, the luminescent quantum yield of the corresponding TPE derivatives can be manipulated from 0.18 to 0.

Highly conductive and robust composite anion exchange membranes by incorporating quaternized MIL-101(Cr).

With well-defined channels and tunable functionality, metal-organic frameworks (MOFs) have inspired the design of a new class of ion-conductive compounds. In contrast to the extensive studies on proton-conductive MOFs and related membranes attractive for fuel cells, rare reports focus on MOFs in preparation of anion exchange membranes. In this study, chloromethylated MIL-101(Cr) was prepared and incorporated into chloromethylated poly (ether ether ketone) (PEEK) as a multifunctional filler to prepare imidazolium PEEK/imidazolium MIL-101(Cr) (ImPEEK/ImMIL-101(Cr)) anion exchange membrane after synchronous quaternization.