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Ruthenium-Catalysed Asymmetric Intramolecular Isomerization/Esterification Reaction: Direct Synthesis of Chiral Dihydrocoumarins

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Chinese Journal of Chemistry 2024年第16期42卷 1828-1832页

作者： Lingzi Zhao Xuchao Wang Qing Qiang Xingwei Zhao Feipeng Liu Shenci Lu Zi-Qiang Rong Frontiers Science Center for flexible electronics(FSCFE) Shaanxi Institute of Flexible Electronics(SiFE)&Shaanxi Institute of Biomedical Materials and Engineering(SIBME)Northwestern Polytechnical University(NPU)127 West Youyi RoadXianShaanxi 710072China Honors College Northwestern Polytechnical University(NPU)127 West Youyi RoadXi'anShaanxi 710072China

An asymmetric isomerization/intramolecular coupling reaction of allylic alcohols to synthesize chiral dihydrocoumarins was successfully accomplished through ruthenium *** method demonstrates a wide substrate applicability,excellent tolerance for various functional groups,and good enantioselectivities(up to 90%ee).It provides a convenient pathway to produce a diverse range ofstructurallydistinct chiral dihydrocoumarins ingoodefficiency.

关键词： Ruthenium catalysis Asymmetric isomerization Tandem reaction Chiral dihydrocoumarins Enantioselectivity

Rapid room-temperature synthesis of a porphyrinic MOF for encapsulating metal nanoparticles

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Nano Research 2021年第2期14卷 444-449页

作者： Huihui He Luyan Li Yang Liu Meruyert Kassymova Dandan Li Liangliang Zhang Hai-Long Jiang Frontiers Science Center for flexible electronics(FSCFE) Shaanxi Institute of Flexible Electronics(SIFE)&Shaanxi Institute of Biomedical Materials and Engineering(SIBME)Northwestern Poly technical University(NPU)Xi’an 710072China institutes of Physics Science and Information Technology Anhui UniversityHefei 230601China Hefei National Laboratory for Physical Sciences at the Microscale Department of ChemistryUniversity of Science and Technology of ChinaHefei 230026China

While metal nanoparticles(NPs)have shown great promising applications as heterogeneous catalysts,their agglomeration caused by thermodynamic instability is detrimental to the catalytic *** tackle this hurdle,we successfully prepared a functional and stable porphyrinic metal-organic framework(MOF),PCN-224-RT,as a host for encapsulating metal nanoparticles by direct stirring at room *** a result,Pt@PCN-224-RT composites with well-dispersed Pt NPs can be constructed by introducing pre-synthesized Pt NPs into the precursor solution of *** note,the rapid and simple stirring method in this work is more in line with the requirements of environmental friendly and industrialization compared with traditional solvothermal methods.

关键词： metal nanoparticles room tem perature and rapid synthesis PCN-224 Ostwald ripening

Recent Developments of Photodeformable Polymers:From Materials to Applications

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Research 2024年第2期2023卷 729-752页

作者： Shuting Kong Hailan Wang Eethamukkala Ubba Yuxin Xiao Tao Yu Wei Huang Frontiers Science Center for flexible electronics(FSCFE) Shaanxi Institute of Flexible Electronics(SIFE)Northwestern Polytechnical University127 West Youyi RoadXian 710072China OMC Research Laboratory.Department of Chemistry School of Advanced SciencesVITVelloreTamilnaduIndia Key Laboratory of flexible electronics(KLOFE)&institute of Advanced Materials(IAM) Nanjing Tech University(NanjingTech)30 South Puzhu RoadNanjing 211816China State Key Laboratory of Organic electronics and Information Displays&institute of Advanced Materials(IAM) Nanjing University of Posts and Telecommunications9 Wenyuan RoadNanjing 210023China

Photodeformable polymer materials have a far influence in the fields of flexibility and *** stimulation energy is converted into mechanical energy through molecular *** kinds of photodeformable polymer materials,liquid crystalline polymer(LCP)photodeformable materials have been a hot topic in recent *** such as azobenzene,a-cyanostilbene,and 9,10-dithiopheneanthracene have been widely used in LCP,which are helpful for designing functional molecules to increase the penetration depth of light to change physical *** to the various applications of photodeformable polymer materials,there are many excellent reports in intelligent *** this review,we have systematized LCP containing azobenzene into 3 categories depending on the degree of crosslinking liquid crystalline elastomers,liquid crystalline networks,and linear *** structural,typical polymer materials and their applications are *** issues faced and future directions to be developed for photodeformable polymer materials are also summarized.

关键词： properties. field. crystalline

Recent progress on low dimensional perovskite solar cells

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Journal of Energy Chemistry 2018年第4期27卷 1091-1100页

作者： Lingfeng Chao Ze Wang Yingdong Xia Yonghua Chen Wei Huang Key Laboratory of flexible electronics(KLOFE)&Institution of Advanced Materials(IAM) Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)Nanjing Teeh University(NanjingTech)Nanjing 211816Jiangsu.China Shaanxi institute of flexible electronics(sife).Northwestern Polytechnical University(NPU) Xi'an 710072ShaanxiChina Key Laboratory for Organic electronics&Information Displays(KLOEID) and Institute of Advanced Materials(IAM).Nanjing University of Posts and TelecommunicationsNanjing 210023JiangsuChina

Low dimensional perovskites have recently attracted much attention due to their vertical growth of crys- talline orientation, excellent film morphology, and long-term humidity, light, and heat stability, How- ever, low dimensional perovskites suffer fl＇om low power conversion efficiency （PCE） with respect to their three dimensional analogues. Therefore, it is imperative to find excellent low-dimensional perovskite materials for improving the PCE. Previous work has demonstrated that bulkier organic molecules, e,g., C6Hs（CH2）2NH3＋（PEA＋）, CH3（CH2）3NH3＋（n-BAT, iso-BA＋）, C2H4NH3 ＋, and polyethylenimine cations （PEI＋）, play an important role in the formation of low-dimensional perovskites. In this review, we review the recent development of low dimensional perovskites for solar cells application in terms of film preparation, photophysics, and stability of perovskites, as well as the related device structure and physics. We have also discussed the future development of low-dimensional perovskites from materials design, fabri- cation processes, and device structure.

关键词： Low dimensional perovskites Perovskite solar cells Stability Bulkier organic molecules

A Comparison Study of Physicochemical Properties and Stabilities of H-Shaped Molecule and the Corresponding Polymer

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Chinese Journal of Polymer Science 2019年第1期37卷 11-17,1-10页

作者： Quan-You Feng Bin Li Zong-Yan Zuo Song-Lin Xie Meng-Na Yu Bin Liu Ying Wei Ling-Hai Xie Rui-Dong Xia Wei Huang Center for Molecular Systems and Organic Devices (CMSOD) Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials (IAM) Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) Nanjing University of Posts & Telecommunications Shaanxi institute of flexible electronics (sife) Northwestern Polytechnical University (NPU)

Rare attention has been paid to the comparison between a monomer and its corresponding polymer in terms of the optoelectronic characteristics. In this article, a model H-shaped molecule and its corresponding polymer, both of which exhibited similar properties including blue emission and solution processing, were designed and synthesized. Optoelectronic properties and various kinds of stability features, including the thermostabilities, spectral stabilities and amplified spontaneous emission characteristic of the monomer and polymer were investigated. In general, the corresponding polymer PH exhibited similar optoelectronic properties but deteriorated stabilities compared with its H-shaped monomer H-1 probably owing to the similar chemical structure but the wider molecular weight distribution and metal catalyst residue. Importantly, monomer H-1 displayed a comparable ASE threshold value with its polymer PH,suggesting that H-shaped fluorene-based small molecules may be more promising optical gain media in solid state amplifers and lasers.

关键词： Fluorene H-shape Stability Optoelectronic materials

flexible, transparent nanocellulose paper-based perovskite solar cells

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npj flexible electronics 2019年第1期3卷 42-49页

作者： Lei Gao Lingfeng Chao Meihui Hou Jin Liang Yonghua Chen Hai-Dong Yu Wei Huang institute of Advanced Materials(IAM)&Key Laboratory of flexible electronics(KLOFE) Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)Nanjing Tech University(NanjingTech)30 South Puzhu Road211816 NanjingChina Shanxi institute of flexible electronics(sife) Northwestern Polytechnical University127 West Youyi Road710072 Xi’anChina

Recently perovskite solar cells(PSCs),as photoelectric conversion devices,exhibit excellent power conversion efficiency(PCE)and low-processing cost,and have become one of the most promising devices to replace conventional silicon-based solar cells and address current pressing energy *** them,the flexible PSCs are especially more widely applicable and may propel the rapid advancements of wearable electronics,causing a significant paradigm shift in consumer *** flexible PSCs use non-biodegradable petroleum-based polymer substrates,discarding of which will aggravate“white pollution”.Therefore,development of green,biodegradable and low-cost flexible substrates will provide a great alternative to flexible *** we have developed transparent nanocellulose paper(NCP)with coating of acrylic resin as substrates to fabricate flexible PSCs,which are biodegradable and easily *** PCE of these NCP-based PSCs reached 4.25%,while the power per weight(the ratio of power to device weight)was as high as 0.56 W g^(–1).The flexible PSCs also showed good stability,retaining>80%of original efficiency after 50 times of *** NCP-based substrates can also be applied to other electronic systems,which may prosper next-generation green flexible electronics.

关键词： transparent perovskite retaining

Subtle structure tailoring of metal-free triazine luminogens for highly efficient ultralong organic phosphorescence

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Chinese Chemical Letters 2019年第11期30卷 1935-1938,F0003页

作者： Xuan Wang Nan Gan Mingxing Gu Kun Ling Chaoqun Ma Huili Ma Wei Yao Yujian Zhang Huifang Shi Zhongfu An Wei Huang Key Laboratory of flexible electronics(KLOFE)&institute of Advanced Materials(IAM) Jiangsu National Synergistic Innovation Center for Advanced Materials(SICAM)Nanjing Tech University(Nanjing Tech)Nanjing 211816China Department of Materials Chemistry Huzhou UniversityHuzhou 313000China Shanxi institute of flexible electronics(sife) Northwestern Polytechnical University(NPU)Xi'an 710072China

Ultralong organic phosphorescent materials have invoked considerable attention for their great potential in sensing,data encryption,information anti-counterfeiting and so ***,effective ways to achieve highly efficient ultralong organic phosphorescence(UOP)in metal-free organic materials remain a great ***,we designed three isomers based on asymmetric triazines with various bromine substituted ***,phosphorescence efficiency of p-BrAT in solid state can reach up to 9.7%with a long lifetime of 386 ms,which was one of the highest efficient UOP materials reported so *** calculations further demonstrated that para-substitution exhibited the most effective radiative transition for triplet *** results will provide an effective approach to achieving highly efficient UOP materials.

关键词： Ultralong organic phosphorescence(UOP) Isomerism Crystal engineering H-aggregation Intermolecular interactions

Mitochondria-targeted fluorescent probe based on vibration-induced emission for real-time monitoring mitophagy-specific viscosity dynamic

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Chinese Chemical Letters 2020年第11期31卷 2897-2902页

作者： Shuangxi Wang Bicong Zhou Na Wang Changmin Yu Naidi Yang Jian Chen Qiong Wu Chengwu Zhang Lin Li Wei Huang Key Laboratory of flexible electronics(KLOFE)&•institute of Advanced Materials(1AM) Nanjing Tech University(NanjingTech)Nanjing 211800China Shaanxi institute of flexible electronics(sife) Northwestern Polytechnical University(NPU)Xi'an 710072China Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers Hunan University of Science and TechnologyXiangtan 411201China

Directly monitoring mitophagy-specific viscosity dynamic in living cells is of great significance but remains ***,this study reported a novel mitochondria-targeted fluorescent probe DPACDY based on vibration-induced emission(VIE)for monitoring viscosity changes during mitochondrial *** probe contained N,N’-diphenyl-dihydrodibenzo[a,c]phenazine(DPAC)as the VIE core and two positively charged pyridinium moieties for mitochondria *** the ambient viscosity increased,the vibration of DPAC-DY could be hindered,and subsequently resulting in the enhancement of fluorescence *** vitro and intracellular experiments indicated that the probe DPAC-DY showed highly sensitive response to viscosity due to VIE ***,by virtue of this probe,in situ and real-time visualization of the specific viscosity dynamics during the mitochondrial autophagy process was ***,this work provides a novel strategy for VIE-based viscosity response sensors applied to specific organelles and offers a platform for in-depth study of mitochondrial viscosity-related diseases.

关键词： Vibration-induced emission Autophagy Viscosity Fluorescence detection

Synergistic glycolysis disturbance for cancer therapy by a MOF-based nanospoiler

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Biophysics Reports 2023年第3期9卷 134-145页

作者： Xuemei Zeng Yihang Ruan Lun Wang Jinpeng Deng Shuangqian Yan Key Laboratory of Innate Immune Biology of Fujian Province Biomedical Research Center of South China College of Life Sciences Fujian Normal University The straits institute of flexible electronics (sife Future Technologies) the Straits Laboratory of Flexible Electronics (SLoFE) Fujian Normal University

Increased glycolysis for promoting adenosine triphosphate(ATP) generation is one of the hallmarks of cancer. Although reducing glucose intake or depriving cellular glucose can delay the growth of tumors to some extent, their therapeutic efficacy is a highly needed improvement for clinical translation. Herein, we found that mannose synergistic with glucose oxidase(GOx) can induce cell death by ATP inhibition, autophagy activation, and apoptosis protein upgradation. By using biodegradable zeolitic imidazolate frameworks(ZIF-8) as a nanocarrier(denoted as ZIF-8/M&G), the mannose and GOx can accumulate at the tumor site while having no obvious long-term toxicity. At the tumor site, GOx inhibits glycolysis by converting glucose and oxygen to H2O2and gluconic acid, realizing oxidation therapy and expediting the degradation of the p H-responsive ZIF-8 nanoparticles, respectively. Simultaneously, mannose disturbs sugar metabolism and reduces oxygen consumption, which in turn promotes the GOx oxidation process. The concerted glycolysis inhibition through interactions between mannose and GOx endows ZIF-8/M&G nanospolier with excellent therapeutic efficacy both in vitro and in vivo. Synergistic glycolysis disturbance by the designed nanospoiler in this work proposes a versatile approach for metabolism disturbance to tumor treatment.

关键词： Glycolysis disturbance Energy deprivation Drug delivery Zeolitic imidazolate frameworks Metal-organic frameworks