Explanipedia

Ladder‐Type Benzene‐Perylene Dyes with Efficient Laser Properties in the Near‐IR by Detracting/Activating Low/High Frequency Vibronic Modes Open

Marcos Díaz‐Fernández, A. Pérez, Fernando Gordillo Gámez, Pedro G. Boj, José M. Villalvilla , et al. · 2025

Organic lasers are very attractive light sources for various applications, which have propelled the search for organic compounds showing good performance as active laser units. Here, a family of ladder‐type oligomers (named as NNR‐n with n…

Ultrahigh pressure compaction-resistant thin film crosslinked composite reverse osmosis membranes Open

Jishan Wu, Javier A. Quezada-Renteria, Jinlong He, Minhao Xiao, Yuanmiaoliang Chen , et al. · 2025

Biradical-mediated synergistic electrocatalysis using metal-free redox molecular catalysts Open

Danjun Fu, Zhu Jun, Lu-Lu Wang, Rui Liu, Liuying Jiao , et al. · 2025

Nature’s redox enzymes achieve remarkable selectivity by organizing active sites with precise spatial control, an ability difficult to replicate in synthetic systems. Inspired by this, we report a class of stable, metal-free bicarbenium-ba…

Aggregation‐Free, Perylene‐Containing π‐Extended Kekulene with Improved Photoluminescence Quantum Yield Open

Gui‐Fei Huo, Yi Han, Wei Fan, Ya Zou, Jishan Wu · 2025

Kekulene and expanded kekulenes are rigid, nearly planar cycloarenes with potential optoelectronic applications. However, their highly symmetric structures and localized aromaticity typically result in low photoluminescence quantum yield (…

Synthesis of zwitterionic open-shell bilayer spironanographenes Open

Juan Lión‐Villar, Jesús M. Fernández‐García, Samara Medina Rivero, Josefina Perles, Shaofei Wu , et al. · 2025

Molecular nanographenes (NGs) are nanoscale graphene fragments obtained by organic synthetic protocols. Here we report the bottom-up synthesis of two spiro-NGs formed by two substituted hexa-peri-hexabenzocoronenes (HBCs), spiro-NG and F-s…

Nanographenes with Multiple Zigzag Edges Open

Ya Zou, Jishan Wu · 2025

Reversible Ring Oxidation of 48π Planar Nonaphyrins to Open Shell 46π Dications Open

Tullimilli Y. Gopalakrishna, Ashokkumar Basavarajappa, Hosahalli S. Udaya, Ko Furukawa, Jishan Wu , et al. · 2025

We report the synthesis and characterization of 48π nonaphyrins, a novel class of planar expanded porphyrinoids exhibiting distinct electronic properties compared to their 32π congeners. Single‐crystal X‐ray diffraction studies revealed he…

Chiroptical Signature and Absolute Configuration of Tröger’s Base-Based Triangular Macrocycles Open

Luis Palomo, Carlos M. Cruz, Araceli G. Campaña, Bo Jiang, Jishan Wu , et al. · 2025

Chiral macrocycles are an attractive subject in supramolecular chemistry because of their proven relevance in appealing applications such as asymmetric catalysis, selective absorption, or chiral recognition. Taking into account the strong …

Stable Fluorenyl Radicals Showing Tunable Doublet Emission Open

Xudong Hou, Tingting Xu, Jun Zhu, Shaofei Wu, Jishan Wu · 2025

Neutral organic radicals with intrinsic spin-allowed doublet emission have emerged as a promising class of luminescent materials, garnering significant research interest. However, the development of stable luminescent radicals with tunable…

Aromaticity and through-space electronic coupling in [2]catenanes comprising two intertwined, globally electron-delocalized octaphyrinoid rings Open

Yi Sui, Jiahang Hao, Shaofei Wu, Longbin Ren, Zebing Zeng , et al. · 2025

π-Conjugated molecules with nontrivial topologies, such as catenanes and knots, offer unique aromaticity and through-space electronic and magnetic interactions absent in traditional planar π-systems. However, their synthesis remains challe…

Stable Mono‐Radical and Triplet Diradicals Based on Allylic Radical‐Embedded All‐Benzenoid Polycyclic Hydrocarbons Open

Lei Wang, Weiwei Niu, Di Tian, Tianyu Jiao, Lemin Zhang , et al. · 2024

High‐spin organic radicals are notable for their unique optical, electronic, and magnetic properties, but synthesizing stable high‐spin systems is challenging due to their inherent reactivity. This study presents a novel strategy for desig…

Stable Mono‐Radical and Triplet Diradicals Based on Allylic Radical‐Embedded All‐Benzenoid Polycyclic Hydrocarbons Open

Lei Wang, Weiwei Niu, Tian Di, Tianyu Jiao, Lemin Zhang , et al. · 2024

High‐spin organic radicals are notable for their unique optical, electronic, and magnetic properties, but synthesizing stable high‐spin systems is challenging due to their inherent reactivity. This study presents a novel strategy for desig…

Stable Xanthene Radicals and Their Heavy Chalcogen Analogues Showing Tunable Doublet Emission from Green to Near‐infrared Open

Wanqing Jiang, Shaofei Wu, Duo Xu, Liangjing Tu, Yujun Xie , et al. · 2024

Organic luminescent radicals, unlike traditional closed‐shell fluorescent emitters, exhibit distinct luminescence mechanisms, offering promising potential for optoelectronic devices. To date, stable luminescent radicals have predominantly …

Highly Strained, Fully π‐Conjugated Porphyrin Cyclophanes: Template‐free Synthesis and Global Aromaticity Open

Longbin Ren, Yi Han, Liuying Jiao, Ya Zou, Jishan Wu · 2024

Porphyrin‐based nanohoops, nanorings, and cages with fully π‐conjugated structures are highly sought after, but their synthesis remains challenging. Herein, we report the template‐free synthesis of a highly strained, bithiophene‐bridged po…

[5]Helicene Based π‐Conjugated Macrocycles with Persistent Figure‐Eight and Möbius Shapes: Efficient Synthesis, Chiral Resolution and Bright Circularly Polarized Luminescence Open

Qifeng Zhou, Yuan Wei, Yunfei Li, Yi Han, Lintao Bao , et al. · 2024

π‐Conjugated chiral shape‐persistent molecular nanocarbons hold great potential as chiroptical materials, though their synthesis remains a considerable challenge. Here, we present a simple approach using Suzuki coupling of a [5]helicene bu…

[5]Helicene Based π‐Conjugated Macrocycles with Persistent Figure‐Eight and Möbius Shapes: Efficient Synthesis, Chiral Resolution and Bright Circularly Polarized Luminescence Open

Qifeng Zhou, Wei Yuan, Yunfei Li, Yi Han, Lintao Bao , et al. · 2024

π‐Conjugated chiral shape‐persistent molecular nanocarbons hold great potential as chiroptical materials, though their synthesis remains a considerable challenge. Here, we present a simple approach using Suzuki coupling of a [5]helicene bu…

Enhanced phosphate anion flux through single-ion, reverse-selective mixed-matrix cation exchange membrane Open

Xinyi Wang, Minhao Xiao, Sungsoon Kim, Jeffrey Zhang, Minju Cha , et al. · 2024

Unveiling the mysterious hydrocarbon – Clar’s goblet Open

Tianyu Jiao, Cong-Hui Wu, Yushuang Zhang, Xiaohe Miao, Shaofei Wu , et al. · 2024

In the classic view, spin pairing occurs between two electrons in a chemical bond where the bonding interaction compensates for the penalty of electrostatic repulsion. It is a mystery whether spin pairing can occur between two non-bonded e…

Monolithic Polyepoxide Membranes for Nanofiltration Applications and Sustainable Membrane Manufacture Open

Mackenzie Anderson, Riley A. Danna, Clayton French, Jishan Wu, M. Thiel , et al. · 2024

The present work details the development of carbon fiber-reinforced epoxy membranes with excellent rejection of small-molecule dyes. It is a proof-of-concept for a more sustainable membrane design incorporating carbon fibers, and their rec…

Design of Ultra‐Narrow Bandgap Polymer Acceptors for High‐Sensitivity Flexible All‐Polymer Short‐Wavelength Infrared Photodetectors Open

Xiaofeng Chen, Yu Zhu, Yan Xu, Mei Rao, Pengfei Pang , et al. · 2024

All‐polymer photodetectors possess unique mechanical flexibility and are ideally suitable for the application in next‐generation flexible, wearable short‐wavelength infrared (SWIR, 1000–2700 nm) photodetectors. However, all‐polymer photode…

Salt partitioning and transport in polyamide reverse osmosis membranes at ultrahigh pressures Open

Kevin E. Pataroque, Jishan Wu, Jinlong He, Hanqing Fan, Subhamoy Mahajan , et al. · 2024

Understanding salt and water transport mechanisms in reverse osmosis (RO) under high pressures and salinities is critical to advancing RO-based brine management technologies. In this study, we investigate the dependence of salt permeance a…

Coherent photoexcitation of entangled triplet pair states Open

Juno Kim, David C. Bain, Vivian Ding, Kanad Majumder, Dean Windemuller , et al. · 2024

What will it take to get to 250,000 ppm brine concentration via ultra-high pressure reverse osmosis? And is it worth it? Open

Arezou Anvari, Jishan Wu, Arian Edalat, Nikolay Voutchkov, Ahmed Al-Ahmoudi , et al. · 2024

Sample preparation matters: Scanning electron microscopic characterization of polymeric membranes Open

Jishan Wu, Minhao Xiao, Javier A. Quezada-Renteria, Ziwei Hou, Eric M.V. Hoek · 2024

Sample Preparation Matters: Scanning Electron Microscopic Characterization of Polymeric Membranes Open

Jishan Wu, Minhao Xiao, Javier A. Quezada-Renteria, Ziwei Hou, Eric M.V. Hoek · 2024

Triplet formation inhibits amplified spontaneous emission in perylene-based polycyclic aromatic hydrocarbons Open

Sergio Moles Quintero, Jose C. Mira-Martínez, Ya Zou, Marcos Díaz‐Fernández, Pedro G. Boj , et al. · 2024

Three similar polycyclic aromatic hydrocarbon display outstanding emission properties, but only one displays amplified stimulated emission. The lack of available triplet states hinders the triplet formation allowing the amplified stimulate…

Molecular cylinders with donor–acceptor structure and swinging motion Open

Ke Li, Satoshi Yoshida, Ryo Yakushiji, Xingchi Liu, Chang Ge , et al. · 2024

Two nanometer-sized, nitrogen-containing molecular cylinders were synthesized by connecting the cycloparaphenylene and fused aromatic moieties using cyclocondensation reaction.

A high-spin <i>s</i> -triazine linked fluorenyl radical polymer Open

Hoa Phan, Tun Seng Herng, Hou Xudong, Linh Khanh Nguyen, Vinh The La , et al. · 2024

The syntheses of high-spin organic polymers have been a daunting task due to the highly reactive nature of organic radicals, especially when they are ferromagnetically coupled.

WITHDRAWN: Do we need an alternative to polyvinylidene fluoride-based membranes and where will it come from? Open

Eric M.V. Hoek, Minhao Xiao, Burcu Özdemir, Fan Yang, Xinyi Wang , et al. · 2023

Recently, there has been widespread news coverage regarding the potential ban on polyvinylidene fluoride (PVDF) as one of thousands of per- and poly-fluoroalkyl compounds by the European Union, the United States and several U.S. states inc…

Coherent Photoexcitation of Entangled Triplet Pair States Open

Andrew J. Musser, Juno Kim, David C. Bain, Vivian Ding, Kanad Majumder , et al. · 2023

Functional properties of organic semiconductors are defined by the interplay between optically bright and dark states. Organic devices require rapid conversion between these bright and dark manifolds for maximum efficiency, and one way to …

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