Themed collection Spotlight Collection: Aggregation induced luminescence of metal complexes

32 items
Editorial

Aggregation induced luminescence of metal complexes: advances and applications

Guest editors Andrea Fermi, Paola Ceroni and Inamur Rahaman Laskar introduce this Spotlight Collection: Aggregation induced luminescence of metal complexes.

Graphical abstract: Aggregation induced luminescence of metal complexes: advances and applications
Communication

Supramolecular coordination complexes (SCCs) with aggregation-induced emission for in vitro photodynamic therapy

Schematic illustration of the preparation of D-CN and MD-CN nanoparticles and the process of cell death after light irradiation.

Graphical abstract: Supramolecular coordination complexes (SCCs) with aggregation-induced emission for in vitro photodynamic therapy
Communication

Cu(I) complexes with aggregation-induced emission for enhanced photodynamic antibacterial application

AIE-featured PEG-condensed Cu(I)-p-MBA aggregates (PCuA), showing enhanced photodynamic antibacterial activities, were developed in water.

Graphical abstract: Cu(i) complexes with aggregation-induced emission for enhanced photodynamic antibacterial application
Communication

Synthesis and photoluminescence of manganese(II) naphtylphosphonic diamide complexes

X-ray diffraction revealed tetrahedral geometry for manganese(II) halide complexes with napthylphosphonic diamide ligands. The photoluminescence spectra showed the superimposition of green Mn(II) emission with a band in the red range.

Graphical abstract: Synthesis and photoluminescence of manganese(ii) naphtylphosphonic diamide complexes
Communication

A tetraphenylethene-based Pd2L4 metallacage with aggregation-induced emission and stimuli-responsive behavior

A tetraphenylethene-based Pd2L4 metallacage was self-assembled from four TPE-pyridine ligands with two Pd2+ ions. This metallacage exhibited a classical aggregation-induced emission property and stimuli-responsive behaviour.

Graphical abstract: A tetraphenylethene-based Pd2L4 metallacage with aggregation-induced emission and stimuli-responsive behavior
Open Access Paper

Effect of substituents on the 1O2 production and biological activity of (N^N^N)Pt(py) complexes

Pt(II) complexes with different degrees of fluorination at a pyridine ligand have been investigated as photosensitizers using the structural modifications of a series of tridentate N⁁N⁁N ligands. The compounds were evaluated as potential chemotherapeutic agents against A549 cell lines.

Graphical abstract: Effect of substituents on the 1O2 production and biological activity of (N^N^N)Pt(py) complexes
Paper

Controlling the sensitivity and selectivity for the detection of nitro-based explosives by modulating the electronic substituents on the ligand of AIPE-active cyclometalated iridium(III) complexes

AIE active cyclometalated complexes of iridium(III) exhibiting high quantum yield showed selective and sensitive detection of TNT and TNP explosives through rationally choosing the appropriate electronic substituents on the cyclometalated ligand.

Graphical abstract: Controlling the sensitivity and selectivity for the detection of nitro-based explosives by modulating the electronic substituents on the ligand of AIPE-active cyclometalated iridium(iii) complexes
Paper

PtII(C^N)(N-donor ligand)Cl-type complexes showing highly sensitive aggregation-induced phosphorescence emission (AIPE) behavior fulfilled by long-size ligands and a distorted molecular configuration

A series of four-coordinated PtII(C^N)(N-donor ligand)Cl-type complexes have been synthesized through a combination of long-size C^N-type and N-donor ligands.

Graphical abstract: PtII(C^N)(N-donor ligand)Cl-type complexes showing highly sensitive aggregation-induced phosphorescence emission (AIPE) behavior fulfilled by long-size ligands and a distorted molecular configuration
Paper

AIE-active cyclometalated iridium(III) complexes for the detection of lipopolysaccharides and wash-free imaging of bacteria

AIE-active cyclometalated iridium(III) polypyridyl complexes have been developed for rapid detection of bacterial lipopolysaccharide (LPS, also commonly known as endotoxin) and washing-free imaging of bacteria.

Graphical abstract: AIE-active cyclometalated iridium(iii) complexes for the detection of lipopolysaccharides and wash-free imaging of bacteria
Paper

Aggregation of phosphorescent Pd(II) and Pt(II) complexes with lipophilic counter-anions in non-polar solvents

Phosphorescent isostructural Pd(II) and Pt(II) aggregates involving metallophilic interactions in nonpolar achiral/chiral solvents have been extensively studied.

Graphical abstract: Aggregation of phosphorescent Pd(ii) and Pt(ii) complexes with lipophilic counter-anions in non-polar solvents
Open Access Paper

Using a diphenyl-bi-(1,2,4-triazole) tricarbonylrhenium(I) complex with intramolecular π–π stacking interaction for efficient solid-state luminescence enhancement

The intramolecular π–π stacking interactions due to a minimalist ligand enhance the rigidity of the Re-BPTA complex,thus promoting remarkable solid-state luminescence properties.

Graphical abstract: Using a diphenyl-bi-(1,2,4-triazole) tricarbonylrhenium(i) complex with intramolecular π–π stacking interaction for efficient solid-state luminescence enhancement
Open Access Paper

Aggregation-induced emission of a bis(imino)acenaphthene zinc complex with tetraphenylethene units

A bis(imino)acenaphthene (BIAN) zinc(II) complex with tetraphenylethene (TPE) units as bulky aryl groups has been designed and developed, and its photophysical properties in solution and in the solid state have been investigated.

Graphical abstract: Aggregation-induced emission of a bis(imino)acenaphthene zinc complex with tetraphenylethene units
Paper

An aggregation induced emission active bis-heteroleptic ruthenium(II) complex for luminescence light-up detection of pyrophosphate ions

An aggregation-induced emission active bis-heteroleptic(III) complex of an aminoethanol substituted 1,10-phenanthroline-based ligand has been developed for highly selective luminescence ‘light-up’ sensing of pyrophosphate ions.

Graphical abstract: An aggregation induced emission active bis-heteroleptic ruthenium(ii) complex for luminescence light-up detection of pyrophosphate ions
Paper

Aqua-friendly organometallic Ir–Pt complexes: pH-responsive AIPE-guided imaging of bacterial cells

In this work, the aggregation-induced photoluminescence emission (AIPE) of three water-soluble heterobimetallic Ir–Pt complexes was reported with insight into their photophysical and electrochemical properties and imaging of bacterial cells.

Graphical abstract: Aqua-friendly organometallic Ir–Pt complexes: pH-responsive AIPE-guided imaging of bacterial cells
Paper

Luminescent MOFs constructed by using butterfly-like AIE ligands

A series of butterfly-like isomers named oxacalix[2]naphthalene[2]pyrazine (ONP) were conveniently synthesized by a one-step catalyst-free reaction in a facile manner, and they exhibit typical characteristics of aggregation-induced emission (AIE).

Graphical abstract: Luminescent MOFs constructed by using butterfly-like AIE ligands
Paper

Aggregation-induced emission enhancement (AIEE) of tetrarhenium(I) metallacycles and their application as luminescent sensors for nitroaromatics and antibiotics

Luminescent nanoaggregates of Re(I) metallacycles were used as potential probes for the sensitive and selective detection of explosives and antibiotics that contain nitro groups.

Graphical abstract: Aggregation-induced emission enhancement (AIEE) of tetrarhenium(i) metallacycles and their application as luminescent sensors for nitroaromatics and antibiotics
Paper

Self-assembled nanoparticles based on cationic mono-/AIE tetra-nuclear Ir(III) complexes: long wavelength absorption/near-infrared emission photosensitizers for photodynamic therapy

New cationic mono- and AIE tetra-nuclear Ir(III) complex-porphyrin conjugates and the corresponding carrier-free NP PSs by self-assembly methods without any auxiliary reagents, [TPP-Ir]+ NPs and [TPP-4Ir]4+ NPs, are obtained for highly efficient PDT.

Graphical abstract: Self-assembled nanoparticles based on cationic mono-/AIE tetra-nuclear Ir(iii) complexes: long wavelength absorption/near-infrared emission photosensitizers for photodynamic therapy
Paper

AIE-active Ir(III) complexes as type-I dominant photosensitizers for efficient photodynamic therapy

Four new AIE-active Ir(III) complexes were synthesized. MFIrqa, SFIriqa and SFIrqa based NPs are shown to be good PSs in vitro for PDT through Type I ˙OH generation mechanism.

Graphical abstract: AIE-active Ir(iii) complexes as type-I dominant photosensitizers for efficient photodynamic therapy
Paper

AIPE-active cationic Ir(III) complexes for efficient detection of 2,4,6-trinitrophenol and oxygen

A novel AIPE-active diphenylamino-substituted cationic Ir(III) complex is highly sensitive to the detection of 2,4,6-trinitrophenol and oxygen.

Graphical abstract: AIPE-active cationic Ir(iii) complexes for efficient detection of 2,4,6-trinitrophenol and oxygen
Paper

Ligand-regulated three-photon AIE properties of manganese(II) complexes for photodynamic therapy

Schematic diagram of the diagnostic system of fluorescent photosensitizer MD3.

Graphical abstract: Ligand-regulated three-photon AIE properties of manganese(ii) complexes for photodynamic therapy
Open Access Paper

AIE-active Ir(III) complexes functionalised with a cationic Schiff base ligand: synthesis, photophysical properties and applications in photodynamic therapy

Two AIE-active Ir(III) cationic complexes containing Schiff base ligands were synthesised. Ir-2-N+ NPs are shown to be good PSs in vitro for PDT.

Graphical abstract: AIE-active Ir(iii) complexes functionalised with a cationic Schiff base ligand: synthesis, photophysical properties and applications in photodynamic therapy
Paper

Luminescence color change of [3,4-difluoro-2,6-bis(5-methyl-2-pyridyl)phenyl-κ3N,C1,N′]cyanidoplatinum(II) by aggregation

A newly designed Pt(II) complex showing a variety of emission colors depending on the degree of stacking is capable of sensing chloroform vapor.

Graphical abstract: Luminescence color change of [3,4-difluoro-2,6-bis(5-methyl-2-pyridyl)phenyl-κ3N,C1,N′]cyanidoplatinum(ii) by aggregation
Paper

Multistimuli-responsive materials based on a zinc(II) complex with high-contrast and multicolor switching

A zinc(II) complex exhibits high-contrast and multicolor switching in response to mechanical, acid–base vapor and electrical stimulation under ambient light and 365 nm UV light.

Graphical abstract: Multistimuli-responsive materials based on a zinc(ii) complex with high-contrast and multicolor switching
Paper

Dual crystalline–amorphous salen–metal complexes behave like nematic droplets with AIEgens vistas

The spacing of salen-type ligands by highly flexible permethylated bridges causes the derived coordination compounds to have unexpected material properties (e.g., liquid crystallinity, aggregation-induced emission or negative fluorescence anisotropy).

Graphical abstract: Dual crystalline–amorphous salen–metal complexes behave like nematic droplets with AIEgens vistas
Paper

First aggregation-induced emission of a Tb(III) luminophore based on modulation of ligand–ligand charge transfer bands

Herein the aggregation-induced emission (AIE) of a Tb(III) complex is reported for the first time.

Graphical abstract: First aggregation-induced emission of a Tb(iii) luminophore based on modulation of ligand–ligand charge transfer bands
Paper

Turn-on fluorescence in a pyridine-decorated tetraphenylethylene: the cooperative effect of coordination-driven rigidification and silver ion induced aggregation

A newly designed TPE ligand displayed a large fluorescence enhancement in the presence of silver ions in a dilute solution, leading to tunable fluorescence properties by simply mixing AIE and ACQ molecules.

Graphical abstract: Turn-on fluorescence in a pyridine-decorated tetraphenylethylene: the cooperative effect of coordination-driven rigidification and silver ion induced aggregation
Paper

Aggregation induced emission of a new naphthyridine-ethynyl–gold(I) complex as a potential tool for sensing guanosine nucleotides in aqueous media

A new organometallic alkynyl–gold(I) complex exhibiting aggregation induced emission is capable of sensing Guanosine nucleotides via complementary hydrogen bonding in aqueous media.

Graphical abstract: Aggregation induced emission of a new naphthyridine-ethynyl–gold(i) complex as a potential tool for sensing guanosine nucleotides in aqueous media
Paper

Optimization of aggregation-induced phosphorescence enhancement in mononuclear tricarbonyl rhenium(I) complexes: the influence of steric hindrance and isomerism

Boosted phosphorescence: minor structural changes drastically improve the photoluminescence properties of these new rhenium complexes vs. parent compound.

Graphical abstract: Optimization of aggregation-induced phosphorescence enhancement in mononuclear tricarbonyl rhenium(i) complexes: the influence of steric hindrance and isomerism
Paper

A water-soluble cyclometalated iridium(III) complex for pH sensing based on aggregation-induced enhanced phosphorescence

The novel Na[Ir(ppy)2(SB-COO)] (Hppy = phenylpyridine; HSB-COOH = 4-carboxylanilinesalicylaldehyde Schiff base) in aqueous solution showed pH-responsive aggregation-induced enhanced phosphorescence (AIEP) by the formation of the protonated species [Ir(ppy)2(SB-COOH)].

Graphical abstract: A water-soluble cyclometalated iridium(iii) complex for pH sensing based on aggregation-induced enhanced phosphorescence
Paper

1D-helical platinum(II) complexes bearing metal-induced chirality, aggregation-induced red phosphorescence, and circularly polarized luminescence

Binaphthyls-linked Pt(II) complexes with metal-induced chirality self-assemble to build 1D M or P helices and show aggregation/racemization-induced and circularly polarized luminescence.

Graphical abstract: 1D-helical platinum(ii) complexes bearing metal-induced chirality, aggregation-induced red phosphorescence, and circularly polarized luminescence
Paper

A cationic organoiridium(III) complex-based AIEgen for selective light-up detection of rRNA and nucleolar staining

Cyclometalated Ir(III) complex-based AIEgen has been developed to selectively detect and stain the cell rRNA which has been revealed by in vitro PL studies and cell imaging experiment.

Graphical abstract: A cationic organoiridium(iii) complex-based AIEgen for selective light-up detection of rRNA and nucleolar staining
Paper

A fluorescent turn-on probe for cyanide anion detection based on an AIE active cobalt(II) complex

A Co(II) complex based on an AIE-active tetraarylethylene ligand displays selective fluorescence enhancement in the presence of cyanide anion in aqueous solution.

Graphical abstract: A fluorescent turn-on probe for cyanide anion detection based on an AIE active cobalt(ii) complex
32 items

About this collection

Metal complexes have been known as luminescent materials for decades and still represent an extremely attractive class of materials due to their peculiar structure-related properties. As a consequence, they have found applications as responsive supramolecular motifs, sensors and photocatalysts. In the last 10 years, the emerging field of Aggregation-Induced Emission (AIE) demonstrated how a vast variety of compounds are able to switch from negligible emissive compounds in solutions to intensely luminescent materials upon aggregation.

This Spotlight Collection is focused on recent advances of AIE-active metal complexes published in Dalton Transactions, displaying the synthetic strategies for the preparation of new coordination motifs, their photophysical properties and their use as tuneable emissive materials in sensing-oriented and opto-electronic applications, aiming to define useful design principles for future improvements.

This collection is guest edited by:

Dr Andrea Fermi, University of Bologna, Italy
Professor Inamur R. Laskar, Birla Institute of Technology and Science, Pilani, India
Professor Paola Ceroni, Dalton Transactions Associate Editor, University of Bologna, Italy

Articles will be added to this themed collection as soon as possible after they are published. Please return to this page frequently to see the collection grow.

If you would like to contribute an article to this collection, please contact the Editorial Office at dalton-rsc@rsc.org with your proposed topic.

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