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Themed collection Pi conjugated system bricolage (figuration) toward functional organic molecular systems

17 items
Research Article

Direct Synthetic Method for (Nitronyl Nitroxide)-substituted π-Electronic Compounds by Palladium-catalyzed Cross-Coupling Reaction with a Zinc Complex

Research Article

Metamagnetism with TN = 97 K in a layered assembly of paddlewheel [Ru2] units and TCNQ: an empirical rule for interlayer distances determining the magnetic ground state

A new layered antiferromagnet was synthesized from the reaction of a paddlewheel diruthenium(II,II) complex with a TCNQ derivative. The complex has a short interlayer distance and forms part of a series of layered antiferromagnets.

Graphical abstract: Metamagnetism with TN = 97 K in a layered assembly of paddlewheel [Ru2] units and TCNQ: an empirical rule for interlayer distances determining the magnetic ground state
Research Article

Circularly polarized luminescent organogel based on Pt(II) complex possessing phenylisoxazoles

Research Article

Tris(2-hydroxyphenyl)triazasumanene: Bowl-shaped excited-state intramolecular proton transfer (ESIPT) fluorophore coupled with aggregation-induced enhanced emission (AIEE)

Research Article

Rhodium-Mediated Enantioselective Synthesis of a Benzopicene-Based Phospha[9]helicene: Structure-Properties Relationship of Triphenylene- and Benzopicene-Based Carbo- and Phosphahelicenes

Research Article

Synthesis and properties of a twin donor molecule composed of cofacially stacked dihydrodiazapentacenes

Research Article

Use of silylmethoxy groups as inducers of efficient room temperature phosphorescence from precious-metal-free organic luminophores

Crystals of and PMMA films doped with 2,5-bis(silylmethoxy)-1,4-diaroylbenzenes exhibit efficient green phosphorescence at room temperature.

Graphical abstract: Use of silylmethoxy groups as inducers of efficient room temperature phosphorescence from precious-metal-free organic luminophores
Research Article

Sterically crowded hydrogen-bonded hexagonal network frameworks

TpMe and TpF with substituents at the ortho-positions of carboxy groups were synthesized and revealed substituent effects on molecular assembly.

Graphical abstract: Sterically crowded hydrogen-bonded hexagonal network frameworks
Research Article

Water-induced self-assembly of an amphiphilic perylene bisimide dyad into vesicles, fibers, coils, and rings

Bestowing amphiphilicity to specifically designed perylene bisimide dyads enables diverse self-assembly pathways in aqueous media.

Graphical abstract: Water-induced self-assembly of an amphiphilic perylene bisimide dyad into vesicles, fibers, coils, and rings
Research Article

Blackening of aza-BODIPY analogues by simple dimerization: panchromatic absorption of a pyrrolopyrrole aza-BODIPY dimer

Dimerization of the so-called pyrrolopyrrole aza-BODIPY via a bithienyl linkage led to the creation of a novel black dye with dual emission and panchromatic absorption properties in the Vis/NIR region.

Graphical abstract: Blackening of aza-BODIPY analogues by simple dimerization: panchromatic absorption of a pyrrolopyrrole aza-BODIPY dimer
Research Article

Aggregation-responsive ON–OFF–ON fluorescence-switching behaviour of twisted tetrakis(benzo[b]furyl)ethene made by hafnium-mediated McMurry coupling

A new type of molecule tetrakis(benzo[b]furyl)ethene (TBFE) undergoes two-wavelength ON–OFF–ON three-stage fluorescence switching triggered by aggregation.

Graphical abstract: Aggregation-responsive ON–OFF–ON fluorescence-switching behaviour of twisted tetrakis(benzo[b]furyl)ethene made by hafnium-mediated McMurry coupling
Research Article

Hole-transporting materials based on thiophene-fused arenes from sulfur-mediated thienannulations

Thiophene-fused arenes were synthesized by sulfur-mediated simple thienannulation reactions and applied to hole-transporting materials in perovskite solar cells.

Graphical abstract: Hole-transporting materials based on thiophene-fused arenes from sulfur-mediated thienannulations
Research Article

FRET-mediated near infrared whispering gallery modes: studies on the relevance of intracavity energy transfer with Q-factors

NIR WGM resonators are fabricated from energy-donating and accepting conjugated polymers.

Graphical abstract: FRET-mediated near infrared whispering gallery modes: studies on the relevance of intracavity energy transfer with Q-factors
Research Article

Control of the electrochemical and photophysical properties of N-substituted benzo[ghi]perylene derivatives

Orientation of the lone-pair of electron-dependent electrochemical and photophysical properties were successfully observed by using a series of N-substituted benzo[ghi]perylene derivatives.

Graphical abstract: Control of the electrochemical and photophysical properties of N-substituted benzo[ghi]perylene derivatives
Research Article

Direct amination of the antiaromatic NiII norcorrole

The introduction of amino-substituents to an antiaromatic NiII norcorrole complex was accomplished regioselectively upon simple treatment with various amines without any catalysts. The optical and electrochemical properties of the amino norcorroles were substantially modulated by electron-donating amino groups.

Graphical abstract: Direct amination of the antiaromatic NiII norcorrole
Chemistry Frontiers

Single-molecule junctions of π molecules

An investigation on a single-molecule junction reveals the intrinsic properties of a π molecule without the effect of intermolecular interaction and also uncovers its unique properties.

Graphical abstract: Single-molecule junctions of π molecules
Chemistry Frontiers

Synthesis and properties of open-cage fullerene C60 derivatives: impact of the extended π-conjugation

Novel open-cage fullerene C60 derivatives with extended π-conjugation bearing thiophene rings exhibit long wavelength absorption due to characteristic intramolecular charge transfer transitions.

Graphical abstract: Synthesis and properties of open-cage fullerene C60 derivatives: impact of the extended π-conjugation
17 items

About this collection

Materials Chemistry Frontiers is delighted to publish the collection of articles on “Pi conjugated system bricolage (figuration) toward functional organic molecular systems”, guest edited by Takanori Fukushima (Tokyo Institute of Techonolgy) and Tomoyuki Akutagawa (Tohoku University).

π-Electronic molecules, displaying electronic, optical, and magnetic functions, have played critical roles not only in fundamental chemistry but also in diverse research areas from materials to life sciences. Aim of this themed collection is to showcase the very recent efforts in creating superb π-electronic materials and functions as well as exploring new phenomena based on the design concept of “π-figuration”. Topics include but are not limited to:

·         Development of novel molecular frameworks that provide the basis for the π-figuration concept by utilizing state-of-the-art organic synthesis

·         Development of functional π-electronic molecular assemblies at many length scales by utilizing state-of-the-art supramolecular and polymer chemistry

·         Prediction, design, and revelation of functions of the new π-electronic materials by utilizing state-of-the-art theory, computational, and measurement techniques

More articles will be added into the collection as soon as published.

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