The structural effects of ligands on the emission properties Pt(<sc>ii</sc>) complexes and promising applications luminescent in various areas are discussed.

Abstract Pincer Pd II –isocyanide complexes are described that display intermolecular interactions and emissive 3 MMLCT excited states in aggregation state(s) at room temperature. The −Pd ligand–ligand drive these to undergo supramolecular polymerization a living manner. Comprehensive spectroscopic studies reveal pathway with kinetic trap can be modulated by changing the counteranion metal atom. assemblies comprise two different forms only one emissive. DFT/TDDFT calculations lend support...

A critical step in advancing the practical application of copper-based organic light-emitting diodes (OLEDs) is to bridge large gap between device efficiency and operational stability at luminance. Described a panel air- thermally stable two-coordinate CuI emitters featuring bulky pyrazine- (PzIPr) or pyridine-fused N-heterocyclic carbene (PyIPr*) carbazole (Cz) ligands with enhanced amide-Cu-carbene bonding interactions. These display activated delayed fluorescence (TADF) from 1...

Abstract Herein a class of structurally simple and operationally stable Au(I)‐TADF (TADF = thermally activated delayed fluorescence) materials, based on carbene–metal–amide (CMA) molecular scaffold comprised sterically bulky N ‐heterocyclic carbene ligands with π ‐annulation, are reported. These CMA(Au) emitters stable, adopt coplanar or orthogonal geometry between the amide ligands, show strong blue to deep red TADF emissions (466–666 nm) from equilibrated singlet...

Abstract Color‐tunable organic light‐emitting diodes (CT‐OLEDs) have a large color‐tuning range, high efficiency and operational stability at practical luminance, making them ideal for human‐machine interactive terminals of wearable biomedical devices. However, the device lifetime CT‐OLEDs is currently far from reaching requirements. To address this problem, tetradentate Pt(II) complex named tetra‐Pt‐dbf, which can emit efficiently in both monomer aggregation states, designed. This emitter...

Significance Metallophilicity is widely regarded as a driving force in the self-assembly of closed-shell d 8 and 10 metal complexes. The self-assembled complexes have applications organic semiconductors, biosensing, light-emitting diodes, photocatalysis. attractive metallophilicity ground state believed to originate from spd orbital hybridization or electron correlation interaction strengthened by relativistic effect. These two models remained controversial for long time. Our findings...

The chirality of supramolecular polymeric materials is subtly affected by a delicate balance among various non-covalent interactions, the details which are inadequately understood. Now, fine intermolecular including closed-shell metal-metal, dispersive and electrostatic used to direct orientation monomeric building blocks, thereby achieving successful preparation different nanostructures with distinct chirality. Moreover, kinetically trapped thermodynamically stable aggregates were monitored...

Incorporating Ln( iii ) ions into coordination framework structures confers multifunctional properties such as single-ion magnetism, host–guest interactions, and more, which could have broad applications in diverse fields.

Abstract Strong photo‐reductants have applications in photo‐redox organic synthesis involving reductive activation of C−X(halide) and C=O bonds. We report herein air‐stable Pt II complexes supported by tetradentate bis(phenolate‐NHC) ligands having peripheral electron‐donating N ‐carbazolyl groups. Photo‐physical, electrochemical, computational studies reveal that the presence groups enhances light absorption redox reversibility because its involvement into frontier MOs both ground excited...

Metallophilic interactions in d10–d10(AuI–AuI)/d8–d8(PtII–PtII, RhI–RhI, IrI–IrI) complexes have been widely studied for decades, and metal–metal (M–M) bonding character has revealed both the ground excited states. These M–M closed-shell are appealing driving forces self-assembly of supramolecular/polymeric systems, providing luminescent properties distinctly different from those corresponding monomer. However, reports on attractive between two AuIII complex cations scarce literature. Herein...

Reactivity study of novel metal carbene complexes can offer new opportunities in catalytic transfer reactions as well other synthetic protocols. Metal with quinoid (QC) ligands are assumed to be key intermediates a variety metal-catalyzed QC using diazo quinones, which demands development the chemistry characterized metal–QC complexes. Herein we report isolation and ruthenium porphyrins [Ru(Por)(QC)] contribute first examples (i) structurally complex (by X-ray crystallography) (ii) isolated...

Abstract The emission properties of two series tetradentate Pt(II) emitters in aggregation forms are studied by density functional theory (DFT), time‐dependent DFT calculations, and photoluminescence (PL) measurements. PL quantum yields (PLQYs) the complexes bearing type‐I O^N^C^N ligands ( Pt‐X‐1 Pt‐X‐2 ) increase with dopant concentration thin film until 100% [pristine complexes]. For type‐II Pt‐X‐3 to Pt‐X‐5 ), their PLQYs as increases up a certain threshold then quickly decrease further...

Alkyl-substituted carbene (CHR or CR2, R = alkyl) complexes have been extensively studied for alkylcarbene (CHR) ligands coordinated with high-valent early transition metal ions (a.k.a. Schrock carbenes alkylidenes), yet dialkylcarbene (CR2) remain less developed bis(dialkylcarbene) species being little (if at all) explored. Herein, several group 8 porphyrin complexes, including Fe- and Ru-mono(dialkylcarbene) [M(Por)(Ad)] (1a,b, M Fe, Por porphyrinato dianion, Ad 2-adamantylidene; 2a,b, Ru)...

Described herein is an IrIII /porphyrin-catalyzed intermolecular C(sp3 )-H insertion reaction of a quinoid carbene (QC). The was designed by harnessing the hydrogen-atom transfer (HAT) reactivity metal-QC species with aliphatic substrates followed radical rebound process to afford C-H arylation products. This methodology efficient for activated hydrocarbons such as 1,4-cyclohexadienes (down 40 min time, up 99 % yield, 1.0 g scale). It features unique regioselectivity, which mainly governed...

Abstract A series of charge‐neutral Au III complexes, which comprise a dicarbanionic C‐deprotonated biphenyl ligand and bidentate ancillary ligands ([Au(C^C)(L^X)]; L^X=β‐diketonate relatives (O^O), quinolinolate (N^O), diphosphino (P^P) ligands), were prepared. All the complexes are emissive in degassed CH 2 Cl solutions thin‐film samples with Φ em up to 18 35 %, respectively, except for 5 6 , bear (N^O)‐type ligands. Variation electronic characteristics β‐diketonate was demonstrated be...

Multicomponent supramolecular block copolymers (BCPs) have attracted much attention due to their potential functionalities, but examples of three-component BCPs are rare. Herein, we report the synthesis multiblock 1D Ir(III) complexes 1-3 by a sequential seeded polymerization approach. Precise control over kinetically trapped species via pathway complexity monomers is key successful with up 9 blocks. Furthermore, 5-block different sequences could be synthesized changing addition order...

Pincer [Pt(C NHC ^C Ar )L] complexes are excellent emissive dopants and sensitizers for high-efficiency pure blue phosphorescent OLEDs sky phosphor-sensitized fluorescent delivering outstanding indexes of 229 122, respectively.

Photonic circuit systems based on optical waveguiding heteroarchitectures have attracted considerable interest owing to their potential overcome the speed limitation in electronic circuits by modulating signal at micro- or nanoscale. However, controlling parameters, including wavelength and polarization of light outcoupling, as well sequence among different building blocks, remains a key issue. Herein, supramolecular made phosphorescent organometallic complexes Pt, Pd, Cu, Au are applied...

This work reports the photophysical and photochemical studies of binuclear Pd II complexes with 3 MMLCT excited state their applications as OLED emitter photocatalyst.

Incorporating metal-metal (M-M) interactions into excited states of closed-shell d8 and d10 metal complexes is an effective strategy in the design near-infrared (NIR) phosphorescent materials. While extensive studies have focused on homometallic M-M-bonded states, potential heterometallic remains relatively underexplored. Herein, we report a series Rh(I)-Pt(II) double salt that achieve efficient NIR phosphorescence, with emission peak energy spanning 830-980 nm room-temperature quantum yield...