Synthesis and Performance of Deep-Red Phosphorescent Iridium Complexes with Pyrone as an Auxiliary Ligand.

Two bis-cyclometalated heteroleptic iridium complexes incorporating 1-phenylisoquinoline (piq) as the main cyclometalating ligand and 3-hydroxy-2-methyl-4-pyrone (ma) or 2-ethyl-3-hydroxy-4H-pyran-4-one (ema) as the auxiliary ligand, namely Ir(piq)(ma) (Ir-1) and Ir(piq)(ema) (Ir-2), were developed and applied as deep-red phosphors in organic light-emitting diodes (OLEDs). The two auxiliary ligands had similar influences on the photophysical, electrochemical, and electroluminescent properties of the iridium complexes. Ir(piq)(ma) (Ir-1) showed better luminescence performance in a simple phosphorescent OLED compared to the traditional red iridium complex Ir(piq)(acac) and exhibited a current efficiency of 9.

Wood-converted porous carbon decorated with MIL-101(Fe) derivatives for promoting photo-Fenton degradation of ciprofloxacin.

In response to the escalating concerns over antibiotics in aquatic environments, the photo-Fenton reaction has been spotlighted as a promising approach to address this issue. Herein, a novel heterogeneous photo-Fenton catalyst (FeO/WPC) with magnetic recyclability was synthesized through a facile two-step process that included in situ growth and subsequent carbonization treatment. This catalyst was utilized to expedite the photocatalytic decomposition of ciprofloxacin (CIP) assisted by HO.

Inkjet-Printed High-Efficiency Multilayer QLEDs Based on a Novel Crosslinkable Small-Molecule Hole Transport Material.

Quantum dots light-emitting diodes (QLEDs) have attracted much interest owing to their compatibility with low-cost inkjet printing technology and potential for use in large-area full-color pixelated display. However, it is challenging to fabricate high efficiency inkjet-printed QLEDs because of the coffee ring effects and inferior resistance to solvents from the underlying polymer film during the inkjet printing process. In this study, a novel crosslinkable hole transport material, 4,4'-bis(3-vinyl-9H-carbazol-9-yl)-1,1'-biphenyl (CBP-V) which is small-molecule based, is synthesized and investigated for inkjet printing of QLEDs.

Deep Blue Phosphorescent Organic Light-Emitting Diodes with CIEy Value of 0.11 and External Quantum Efficiency up to 22.5.

Organic light-emitting diodes (OLEDs) based on red and green phosphorescent iridium complexes are successfully commercialized in displays and solid-state lighting. However, blue ones still remain a challenge on account of their relatively dissatisfactory Commission International de L'Eclairage (CIE) coordinates and low efficiency. After analyzing the reported blue iridium complexes in the literature, a new deep-blue-emitting iridium complex with improved photoluminescence quantum yield is designed and synthesized.

A novel water-soluble heptaplatin analogue with improved antitumor activity and reduced toxicity.

A novel water-soluble heptaplatin analogue, cis-[(4R,5R)-4,5-bis-(aminomethyl)-2-isopropyl-1,3-dioxolane](3-hydroxy-1,1-cyclobutanedicarboxylato)platinum(II), has been synthesized and biologically evaluated. The complex shows more activity and less toxicity than its parent drug heptaplatin, exhibiting the great potential for further development.

Synthesis and in vitro cytotoxicity of cis-[Pt(NH(3))(NH(2)OH)Cl(2)].

A novel mixed NH(3)/NH(2)OH platinum(II) complex cis-[Pt(NH(3))(NH(2)OH)Cl(2)] was synthesized and characterized by elemental analysis, FAB-MS, FT-IR and (1)H NMR spectroscopy. This complex was determined to have a good water-solubility and satisfactory stability. The pertinent complex was evaluated for its in vitro cytotoxicity against 3AO, HCT-116, LNcap, A549/ATCC and SGC-7901 human carcinoma cell lines.

Unusual dimeric chemical structure for a carboplatin analogue as a potential anticancer complex.

An unexpected and unusual dimeric platinum(II) tetracarboxylate complex was obtained by the reaction of cis-[Pt(NH(3))(2)I(2)] with disilver dicarboxylate. The complex exhibits greater in vitro anticancer activity and lower toxicity in mice than its parent compound, carboplatin, and is therefore worthy of further evaluation as a potential antitumor dinuclear platinum agent.

Synthesis, characterization and cytotoxicity of dihalogeno-platinum(II) complexes with L-histidine ligand.

Diiodo-, dibromo- and dichloro-platinum(II) complexes containing L-histidine ligand were prepared. Their spectra and X-ray crystal structure of the dibromo-platinum(II) complex were described. Only the dichloro-platinum(II) complex showed comparable cytotoxic activity with carboplatin against A549/ATCC, HT-29, and LNcap cell lines.

Bis(acetyl-acetonato-κO,O')-aqua-(diacetyl-methanido-κC)iridium(III).

In the crystal structure of the title compound, [Ir(C(5)H(7)O(2))(3)(H(2)O)], the Ir(III) atom is six-coordinated and situated in a slightly distorted octa-hedral environment. The complex contains both Ir-O and Ir-C bonds and was isolated from a reaction mixture of IrCl(3)(H(2)O)(x), pentane-2,5-dione and NaHCO(3). O-H⋯O hydrogen bonding between the water molecules and the carbonyl O atoms of adjacent molecules leads to a layered motif extending parallel to (010).