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Two UV organic-inorganic hybrid antimony-based materials with superior optical performance derived from cation-anion synergetic interactions

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Chinese Chemical Letters 2024年第9期35卷 442-446页

作者： pu Zhang Xiang Mao Xuehua Dong ling Huang Liling Cao Daojiang gao Guohong Zou College of chemistry and Materials Science Sichuan Normal UniversityChengdu 610066China College of chemistry Sichuan UniversityChengdu 610065China

Finding suitable strategies to effectively enhance the optical properties of materials are the goal being pursued by ***,cation-anion synergetic interactions strategy was proposed to develop two novel organic-inorganic hybrid antimony-based optical materials,(C_(3)H_(5)N_(2.)Sb F_(2.SO_(4)(I)and(C_(5)H_(6)N)Sb F_(2.SO_(4)(Ⅱ),which were obtained by introducing Sb^(3+)cation containing stereochemically active lone-pair(SCALP)and organicπ-conjugated cations into sulphate *** synergistic interactions of the organicπ-conjugated cations,the inorganic[SbO_(2.F_(2.]^(3-)seesaw anions and the[SO_(4)]^(2.)distorted tetrahedra anions make their ultraviolet(UV)absorption edges approach 2.7 and 2.3 nm,respectively,and raise their birefringence up to 0.193@546 nm and 0.179@546 nm,***,although the two compounds have the same stoichiometric ratio and similar one-dimensional(1D)chain structure,they show opposite macroscopic symmetry,where the NCS compound(Ⅱ)exhibits a large secondharmonic generation(SHG)response(1.6 times that of KH_(2.PO_(4)).The two reported compounds are found to be promising UV optical materials in the experimental tests.

关键词： Antimony-based crystals Cation-anion synergetic interactions Large birefringence Short UV absorption edge Organic-inorganic hybrid Ionothermal synthesis

Copper-catalyzed asymmetric dearomatizing amination of 2.naphthols:Csp^(2.–N coupling via 1,3-reductive elimination

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Science china chemistry 2024年第8期67卷 2694-2700页

作者： Aying Yihuo Maoping pu Zheng Tan Jibang Liao Jiuqi Tan Qi-lin Zhou Xiaohua Liu Xiaoming Feng Key Laboratory of Green chemistry&Technology Ministry of EducationCollege of ChemistrySichuan UniversityChengdu 610064China Key Laboratory and Institute of Elemento-Organic chemistry College of Chemistry Frontiers Science Centerfor New Organic MatterNankai UniversityTianjin300071China

An efficient catalytic asymmetric dearomatizing amination of 2.naphthols and phenols catalyzed by N,N′-dioxide-copper(I)complex as a chiral catalyst was presented.A variety of optically activeβ-naphthalenone compounds with a nitrogen-containing quaternary carbon stereocenter were obtained with high yield and enantioselectivity under mild reaction *** studies indicated that this Csp^(2.–N dearomatizing coupling proceeds via 1,3-reductive elimination of phenolate-Cu~Ⅲ-amino intermediate in five-membered ring transition *** origin of enantioselectivity has also been elucidated based on density functional theory calculations.

关键词： asymmetric catalysis amination dearomatization copper catalysis coupling reaction

ASb(SO_(4))_(2.(A=Rb,Cs):Two short-wave UV antimony sulfates exhibiting large birefringence

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Chinese Chemical Letters 2024年第1期35卷 514-517页

作者： Yang Lan Jinxuan Ren pu Zhang Xuehua Dong ling Huang Liling Cao Daojiang gao Guohong Zou College of chemistry and Materials Science Sichuan Normal UniversityChengdu 610066China College of chemistry Sichuan UniversityChengdu 610065China

Herein,two antimony sulfates,named RbSb(SO_(4))_(2.(1)and CsSb(SO_(4))_(2.(2.,have been successfully synthesized with the introduction of Sb^(3+)cation with stereochemically active lone pairs(SCALP)into sulfates by the conventional hydrothermal *** two compounds endow short ultraviolet(UV)absorption edges(2.1 nm and 2.8 nm,respectively)and large birefringence(0.171@546 nm and 0.174@546 nm,respectively),which means that they are promising short-wave UV optical ***,though both of the two compounds exhibit similar 1D chained structures,and possess the same functional moieties including SbO4 seesaws and SO4 tetrahedral groups,they exhibit significantly opposite macroscopic symmetries,i.e.,compound 1 crystallizes in a centrosymmetric(CS)manner(P2.(1)/n)and compound 2.in a noncentrosymmetric(NCS)manner(P2.(1)2.(1)2.(1)),due to the size of cations[r(Rb+)=1.56 A˚,r(Cs+)=1.67 A˚]affects the orientation of SCALP of the adjacent Sb^(3+).

关键词： Antimony sulfates Birefringent crystals Large birefringence Short UV absorption edge Stereochemically active lone pair

Direct Electrochemistry Transfer and Electrocatalysis of Hemoglobin Immobilized in Porous Mn_2._3

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Chemical Research in Chinese Universities 2011年第2期27卷 291-294页

作者： SHI lin-pu {2. Qiu-ming School of chemistry and Environment Beihang University Beijing 100191 P. R. China Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050 P. R. China

Novel porous Mn2.3 with good crystallinity was synthesized via hard-template method. Hb-Mn2.3 na-nocomposite was prepared and used for biosensor construction. The Hb-Mn2.3-Nafion modified electrode shows fast direct electron transfer and displays good electrocatalytic response to the reduction of H2.2. The response time is less than 5 s, the sensitivity is as high as 493 μA·L·mmol-1·cm-2.in a linear ran{2. of 1-100 μmol/L, and the detection limit is 0.16 μmol/L. This modified electrode also shows good stability and reproducibility. This indicates that the porous Mn2.3 provides a good matrix for enzyme immobilization and biosensor construction.

关键词： Porous Mn2.3 Biosensor Direct electrochemistry Electrocatalysis Hemoglobin

Phase-stable wide-bandgap perovskites enabled by suppressed ion migration

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Journal of Energy chemistry 2024年第9期96卷 120-128页

作者： Zhiyu gao Yu Zhu Jingwei Zhu Cong Chen Zongjin Yi Yi Luo Yuliang Xu Kai Wu Tianshu Ma Fangfang Cao Zijun Chen Fang Yao Juncheng Wang Wenwu Wang Chuanxiao Xiao Hao Huang Hongxiang Li Qianqian lin Pei Cheng Changlei Wang Xia Hao Guang{2.n Zeng Dewei Zhao College of Materials Science and Engineering&Institute of New Energy and Low-Carbon Technology&Engineering Research Center of Alternative Energy Materials and Devices Ministry of EducationSichuan UniversityChengdu 610065SichuanChina School of Optoelectronic Science and Engineering&Collaborative Innovation Center of Suzhou Nano Science and Technology Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province&Key Lab of Modern Optical Technologies of Education Ministry of ChinaSoochow UniversitySuzhou 215006JiangsuChina Ningbo Institute of Materials Technology and Engineering Chinese Academy of SciencesNingbo 315201ZhejiangChina Ningbo New Materials Testing and Evaluation Center Co.Ltd Ningbo 315201ZhejiangChina State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structure&School of Resources Environment and MaterialsGuangxi UniversityNanning 530004GuangxiChina Key Lab of Artificial Micro-and Nano-Structures of Ministry of Education of china School of Physics and TechnologyWuhan UniversityWuhan 430072HubeiChina College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065SichuanChina

Wide-bandgap(>1.7 eV)perovskites suffer from severe light-induced phase segregation due to high bromine content,causing irreversible damage to devices ***,the strategies of suppressing photoinduced phase segregation and related mechanisms have not been fully ***,we report a new passivation agent 4-aminotetrahydrothiopyran hydrochloride(4-ATpHCl)with multifunctional groups for the interface treatment of a 1.77-eV wide-bandgap perovskite film.4-ATpH^(+)impeded halogen ion migration by anchoring on the perovskite surface,leading to the inhibition of phase segregation and thus the passivation of defects,which is ascribed to the interaction of 4-ATpH^(+)with perovskite and the formation of low-dimensional ***,the champion device achieved an efficiency of 19.32.with an open-circuit voltage(V_(OC))of 1.314 V and a fill factor of 83.32..Moreover,4-ATpHCl modified device exhibited significant improved stability as compared with control *** target device maintained 80%of its initial efficiency after 519 h of maximum power output(MPP)tracking under 1 sun illumination,however,the control device showed a rapid decrease in efficiency after 2.7 ***,an efficiency of 2..38%of the champion 4-terminal all-perovskite tandem solar cell was achieved by mechanically stacking this wide-bandgap top subcell with a 1.2.-eV low-bandgap perovskite bottom subcell.

关键词： Wide-bandgap perovskite Phase segregation lon migration Interface post-treatment All-perovskite tandems

Synthesis of 1,7-Bis(4-hydroxyphenyl)-3-hydroxy-1,3-heptadien-5-one

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Chinese Chemical Letters 1999年第11期10卷 917-918页

作者： Ming Zhao ZHU Shao Bat LI Qiang gao Guo lin ZHANG(National Laboratory of Applied Organic {2. and institute of Organic {2.,Lanzhou university, Lanzhou 730000)(Laboratory of Materia Medica, chengdu Institute of Biology, Chinese Academy of Sci Natl. Lab. of Appl. Organ. chemistry Institute of Organic Chemistry Lanzhou University Lanzhou 730000 China Laboratory of Materïa Medica Chengdu Institute of Biology Chinese Academy of Sciences Chengdu 610041 China

A facile synthesis of the analog of curcumin. 1,7-bis (4-hydroxyphenyl)-3-hydroxy-1.3-heptadien-5-one 1 was achieved. The key step was completed through the regioselective condensation of ketone 5 and acyl chloride 7.

关键词： 1,7-bis(4-hydroxyphenyl)-3-hydroxy-1,3-heptadien-5-one regioselectivity synthesis

Maize-soybean relay cropping increases soybean yield synergistically by extending the post-anthesis leaf stay-green period and accelerating grain filling

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The Crop Journal 2023年第6期11卷 1921-1930页

作者： Yiling Li Ping Chen Zhidan Fu Kai Luo Ping lin Chao {2. Shanshan Liu Tian pu Taiwen Yong Wenyu Yang College of Agronomy Sichuan Agricultural University/Key Laboratory of Crop Ecophysiology and Farming System in SouthwestMinistry of Agriculture and Rural Affairs/Sichuan Engineering Research Center for Crop Strip Intercropping SystemChengdu 611130SichuanChina

Relay cropping of Poaceae and Fabaceae promotes high yield and land-use efficiency by allowing a double ***,it is difficult to increase yield synergistically because of the reduced photosynthetic abilities of legume leaves under the shade of *** photosynthetic capacity in relay cropping systems is associated with ecological niche differentiation and photosynthetic compensation after restoration of normal *** conducted a field experiment in southwest china in 2.2.–2.2. to evaluate the effects of three cropping patterns:maize–soybean relay cropping(IMS),monoculture maize(MM),and monoculture soybean(SS),and N application levels:no N application(NN:0 kg N ha^(−1)),reduced N(RN:180 kg N ha^(−1)),and conventional N(CN:2.0 kg N ha^(−1)).Compared to monocropping,relay cropping increased the stay-green traits of maize and soybean by 13%and 89%,*** cropping prolonged the leaf stay-green duration in the maize and soybean lag phase by almost 4 and 8 days,*** cropping maize(IM)increased the leaf area index(LAI)by 79.4%to 88.5%under NN and 55.5%to 148%under *** cropping soybean(IS)increased the LAI from 115%to 437%at days 40 to 50 after *** increased yield by 65.6%.IS increased yield by 9.7%.HI and system yield were at their highest values under *** the relay cropping system,reduced N application extended green leaf duration,increased photosynthesis inside the canopy at multiple levels,ultimately increases soybean yield synergistically.

关键词： Leaf stay-green Nitrogen reduction Maize-soybean relay cropping Yield

Bitter receptor TAS2.138 facilitates lipid droplet degradation in neutrophils during Pseudomonas aeruginosa infection

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Signal Transduction and Targeted Therapy 2021年第7期6卷 2154-2163页

作者： Qinqin pu Kai Guo Ping lin Zhihan Wang Shugang Qin Pan {2. Colin Combs Nadeem Khan Zhenwei Xia Min Wu department of Biomedical Sciences School of Medicine and Health SciencesUniversity of North DakotaGrand ForksNDUSA department of Neurology University of MichiganAnn ArborMlUSA Wound Trauma Medical Center State Key Laboratory of TraumaBurns and Combined InjuryDaping HospitalArmy Medical UniversityChongqingChina Biological Science Research Center Southwest UniversityChongqing 400716China West china School of Basic Medical Sciences&Forensic Medicine Sichuan UniversityChengduSichuanChina State Key Laboratory of Biotherapy and Cancer Center West China HospitalSichuan Universityand Collaborative Innovation Center for BiotherapyChengduSichuanChina department of Pediatrics Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghaiPeople's Republic of China

Bitter receptors function primarily in sensing taste,but may also have other functions,such as detecting pathogenic organisms due to their agile response to foreign *** mouse taste receptor type-2.member 138(TAS2.138)is a member of the G-protein-coupled bitter receptor family,which is not only found in the tongue and nasal cavity,but also widely distributed in other organs,such as the respiratory tract,gut,and *** its diverse functions,the role of TAS2.138 in host defense against bacterial infection is largely ***,we show that TAS2.138 facilitates the degradation of lipid droplets(LDs)in neutrophils during Pseudomonas aeruginosa infection through competitive binding with PPARG(peroxisome proliferator-activated receptor gamma)antagonist:A/-(3-oxododecanoyl)-L-homoserine lactone(AHL-12.,which coincidently is a virulence-bound signal produced by this bacterium(***).The released PPARG then migrates from nuclei to the cytoplasm to accelerate the degradation of LDs by binding Plin2.perilipin-2..Subsequently,the TAS2.138-AHL-12.complex targets LDs to augment their degradation,and thereby facilitating the clearance of AHL-12.in neutrophils to maintain homeostasis in the local *** findings reveal a crucial role for TAS2.138 in neutrophil-mediated host immunity against *** infection.

关键词： thereby maintain migrate

Interaction among inflammasome,autophagy and non-coding RNAs:new horizons for drug

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Precision Clinical Medicine 2019年第3期2卷 166-182页

作者： Qinqin pu Ping lin Zhihan Wang Pan {2. Shugang Qin Luqing Cui Min Wu department of Biomedical Sciences School of Medicine and Health SciencesUniversity of North DakotaGrand ForksND 58203USA State Key Laboratory of Biotherapy West China HospitalSichuan UniversityChengdu 610041China West china School of Basic Medical Sciences&Forensic Medicine Sichuan UniversityChengdu 610041China

Autophagy and inflammasomes are shown to interact in various situations including infectious disease,cancer,diabetes and *** multiple layers of molecular regulators contribute to the interplay between autophagy and inflammasome activation,the detail of such interplay remains largely ***-coding RNAs(ncRNAs),which have been implicated in regulating an expanding list of cellular processes including immune defense against pathogens and inflammatory response in cancer and metabolic diseases,may join in the crosstalk between inflammasomes and autophagy in physiological or disease *** this review,we summarize the latest research on the inter{2.k among ncRNAs,inflammasomes and autophagy and discuss the emerging role of these three in multiple signa{2.g transduction pathways involved in c{2.ical *** analyzing these intriguing interconnections,we hope to unveil the mechanism inter-regulating these multiple processes and ultimately discover potential drug targets for some refractory diseases.

关键词： ncRNAs innate and adaptive immunity inflammasome autophagy precision medicine