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Chinese Journal of Chemistry 2021年第11期39卷 2995-3003页

作者： Xing-Yang Chen Su-Yang Yao Li-Ping Li bao-hui ye MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of ChemistrySun Yat-sen UniversityGuangzhouGuangdong510275 China Department of Chemistry Guangdong University of EducationGuangzhouGuangdong510303 China

The diastereoselective photoreactions of Ir(III)-amine and Ir(III)-diamine complexes are observed in the presence of ***Ʌ-[Ir(pq)_(2)(R-mapy)](PF_(6))(pq is 2-phenylquinoline and mapy is 2-(1-aminoethyl)pyridine)diastereomer is dehydrogenatively oxidized into imine complexɅ-[Ir(pq)_(2)(mapy-2H)](PF_(6))at room temperature,while theɅ-[Ir(pq)_(2)(S-mapy)](PF_(6))diastereomer occurs interligand C—N cross-coupling reaction at 60℃,affording a new tetradentate complexɅ-[Ir(pq)(S-pqpe)](PF_(6))(pqpe is 2-phenyl-N-(1-pyridin-2-yl)ethyl-quinolin-8-amine).The identical cases are also observed in diamine complexesɅ-[Ir(pq)_(2)(R,R-chda)](PF_(6))(chda is 1,2-diaminocyclohexane),Ʌ-[Ir(pq)_(2)(R,S-chda)](PF_(6)),andɅ-[Ir(pq)_(2)(S,S-chda)](PF_(6)),where the R configuration ligand is dehydrogenatively oxidized into imine,while the S configuration is retentive and the bound nitrogen atom is coupling to the C8 of pq ligand,affordingɅ-[Ir(pq)_(2)(chdi)](PF_(6))(chdi is 1,2-diiminocyclohexane),Ʌ-[Ir(pq)(S-pqchim)](PF_(6))(pqchim is N-(2-iminocyclohexyl)-2-phenyl-quinolin-8-amine),andɅ-[Ir(S,S-pqchda)](PF_(6))(pqchda is N',N”-bis(2-phenylquinolin-8-yl)cyclohexane-1,2-diamine),*** provide a new and useful protocol for the synthesis of multidentate ligands in situ via the postcoordinated interligand-coupling strategy under mild conditions.

关键词： Ir(III)complexes Interligand-Coupling Reaction/n-s/fu Photochemistry Diastereoselectivity

Chiral Recognition and Photoreaction of β-Amino Acids with Iridium(III)Complexes

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Chinese Journal of Chemistry 2022年第24期40卷 2909-2918页

作者： Ming-Feng Xiong Hai-Yun Zhou Xiao-Kang Huang Jing-Yan Fan bao-hui ye MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of ChemistrySun Yat-sen UniversityGuangzhouGuangdong510275 China Instrumental Analysis and Research Center Sun Yat-sen UniversityGuangzhouGuangdong510275 China

β-Amino acids(AAs),homologs ofα-AAs,are important building blocks of biological ***,chiral recognitions ofβ-AAs with Ir(III)complexes are reported,in favor of formation of the thermodynamically stableΛ-[Ir(pq)_(2)(D-β-AAs)]andΔ-[Ir(pq)_(2)(L-β-AAs)](pq is 2-phenylquinoline)*** photoreactions of[Ir(pq)_(2)(β-AA)]complexes are observed in an EtOH solution in the presence of O_(2) at room *** primaryβ-AAs complexes,such as rac-[Ir(pq)_(2)(β-ala)](β-ala isβ-alanine),Δ-[Ir(pq)_(2)(D-β-ma)]andΛ-[Ir(pq)_(2)(D-β-ma)](β-ma isβ-methylalanine),Δ-[Ir(pq)_(2)(D-β-pa)]andΛ-[Ir(pq)_(2)(D-β-pa)](β-pa isβ-phenylalanine),and rac-[Ir(pq)_(2)(β-dma)](β-dma is 3,3-dimethyl-β-alanine),are interligand C—N cross-coupling in situ between pq andβ-AAs *** secondaryβ-AA complexesΔ-[Ir(pq)_(2)(L-β-pro)]andΛ-[Ir(pq)_(2)(L-β-pro)](β-pro isβ-proline,2-(pyrrolidin-2-yl)acetic acid)are dehydrogenatively oxidized into imino acid complexesΔ-[Ir(pq)_(2)(L-β-pro-2H^(β)’)]andΛ-[Ir(pq)_(2)(L-β-pro-2H^(β)’)](L-β-pro-2H^(β)’=2-(3,4-dihydro-2H-pyrrol-2-yl)acetic acid),***,the dehydrogenative reaction inΔ-[Ir(pq)_(2)(L-β-pro)]diastereomer is regioselective depending on the reaction temperature,affordingΔ-[Ir(pq)_(2)(L-β-pro-2H^(β)’)]andΔ-[Ir(pq)_(2)(L-β-pro-2H^(β))](β-pro-2H^(β)=2-(3,4-dihydro-2H-pyrrol-5-yl)acetic acid)at low *** chiral recognitions and photoreactions of Ir(III)-β-AAs complexes are much different from the previous observations in Ir(III)-α-AAs complexes.

关键词： Photooxidation Chiral recognition Regioselectivity Enantioselectivity β-Amino acid

Thermodynamic Resolution of Pharmaceutical Precursor Modafinil Acid on the Basis of Chiral-at-Metal Strategy

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Chinese Journal of Chemistry 2021年第6期39卷 1483-1490页

作者： Man-Li Cao Jun-Ling Zhu Zhong-Lan Zhi bao-hui ye Su-Yang Yao Xiu-Lian Zhang Department of Chemistry Guangdong University of EducationGuangzhouGuangdong 510303China MOE Key Laboratory of Bioinorgonic and Synthetic Chemistry School of ChemistrySun Yat-sen UniversityGuangzhouGuangdong 510275China

Chiral-at-metal strategy was developed to resolve the essential sulfoxide pharmaceutical intermediates R-modafinil acid and its ana-logues with high yields and ee *** efficient resolution process was achieved based on the diastereoselective discrimination caused by hydrogen bond and intramolecular π-π interaction between chiral-at-metal center and the coordinated chiral sulfoxide ***,the chiral Ir(lll)receptor can be reused with complete retention of their configurations and without the loss of reaction activity and *** work provides a new access to synthesize R-modafinil acid as well as its analogues and develops the application of chiral-at-metal strategy in chiral resolution.

关键词： Chiral resolution Chiral-at-metal complexes Modafinil acid Chiral pharmaceutical Ir(III)complexes

Chiral Dynamic Thermodynamic Resolution of Sulfoxide Enantiomers by Chiral Iridium(Ⅲ) Complexes

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Chiral Dynamic Thermodynamic Resolution of Sulfoxide Enantio...

THE SYNTHESIS AND CRYSTAL STRUCTURE OF CIS-BIS(1,10-PHENANTHROLINE)GLYCINECOBALT(Ⅲ)

中国化学会第八届全国分子手性学术研讨会

作者： Su-Yang Yao bao-hui ye School of Chemistry Sun Yat-Sen University

Chiral octahedral Ir(Ⅲ) complexes have been widely employed in many areas such as asymmetric conjugate additions of α,β-unsaturated 2-acyl imidazole as well as the discrimination and determination of the enantiopurity of varied amines and amine alcohol owing to theirs stability [1,2].Here we present an approach to the resolution of sulfoxide enantiomers with high enantiomeric *** shown in figure 1,the chiral Ir(Ⅲ) complex Λ-[Ir(ppy)(MeCN)](PF)(ppy is 2-phenylpyridine) was prefer to bind(R)-2-(alkylsulfinyl)phenol(HLO-R,R = Me,Et,i Pr,and Bn) rather than(S)-HLO-R under thermodynamic *** coupling 2 eq rac-HLO-R with 1 eq Λ-[Ir(ppy)(MeCN)](PF6),we obtained Λ-[Ir(ppy)2(S-HLO-R)] and the uncoordinated(S)-***(R)-HLO-R was obtained by the protonation of Λ-[Ir(ppy)(S-HLO-R)] with trifluoroacetic acid(TFA) in *** can also apply the methods to separate the pharmaceutical agent precursor(R)-modafinil acid(MA) from(S)-modafinil acid as shown in figure *** yield and optical purity of products were listed in table 1.

关键词： Chiral Octahedral Ir(Ⅲ) Complexes Chiral Resolution

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Chinese Chemical Letters 1991年第7期2卷 529-530页

作者： bao hui ye Tian Xian ZENG Liang Nian JI (Chemistry Department of Zhongshan University,Guangzhou,510275)Hong hui ZHUANG (Fuzhou Research Laboratory of Structural Chemistry,Chinese Academy of Sciences)

A new coordination compound of cis-bis(1,10-phenanthroline)glycinecobalt(Ⅲ) chloridate tetrahydrate,cis-[Co(phen)_2gly]Cl_2.4H_2O,has been prepared by glycine reacted with cis-[Co(phen)_2Cl_2]Cl,then isolated by SP-Sephadex C-25 H^+ form column. The crystal and molecular structure of the new compound has been determined by RIGAKU AFC5R four circle diffractometer,5032 independent reflections were collected of which 3781 observable reflections were used for structure *** crystal is monoclinic,space group C2/c,with a=35.13(1),b=9.637(3)(,c=17.485(6),β= 115.08(Z)~,V=5362(3),Z=*** structure was refined by full matrix least-squares procedure to a final R=0.041 and R_=*** molecular formula was CoC_(28)H_(28)N_5O_8Cl_2. with molecular weight M_r=636.38,D_c=1.58g/cm^3,μ=8.88cm^(-1)and F_((000))=2624.

关键词： Co CIS PHENANTHROLINE)GLYCINECOBALT THE SYNTHESIS AND CRYSTAL STRUCTURE OF CIS-BIS length than Cl

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Multivariate synergy for heightening ionic HOF robustness and proton conductivity

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Science China Chemistry 2025年

作者： Xiang-Tian Bai Li-hui Cao Xu-Yong Chen Jia-Yu Wang Zi-ye Zhou Shaanxi Key Laboratory of Chemical Additives for Industry College of Chemistry and Chemical EngineeringShaanxi University of Science and Technology

Multicomponent crystalline materials construct more complex and diversified structures with different combinations and modes,which expands the material structure space and application *** this work,we have successfully synthesized two twocomponent ionic hydrogen-bonded organic frameworks （iHOF-32 and iHOF-33） and a three-component iHOF （iHOF-34）.Guanidine hydrochloride which is rich in N and H and has a short chain length strengthens the hydrogen bonding network of iHOF,thereby aiding in the efficient migration of *** rigid architecture of 1,1'-diamino-4,4'-bipyridine diiodide furnishes additional scaffolding for the iHOFs and enhances its robustness under harsh ***-34 accomplishes the combination of the ultra-high proton conductivity of iHOF-32 and the robustness of iHOF-33 by the synergistic interaction among the three components of *** addition,iHOF-34 was fabricated as a composite membrane with a peak proton conductivity of 1.55×10-1S cm-1,which is 3.8 times higher than that of recast Nafion,and has extensive potential in fuel *** self-assembly strategy of multicomponent HOFs opens up new avenues for constructing diverse structures while promising new opportunities for applications in the fields of proton conduction and energy storage.

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高速公路护栏碰撞分析与力学模型

交通科技与经济 2008年第6期10卷 88-90页

作者：鲍业辉江朝华河海大学交通学院江苏南京210098

从高速公路交通事故的统计资料出发,分析了汽车与高速公路护栏碰撞事故在交通事故中的比例及发展趋势,提出护栏碰撞研究。对护栏碰撞进行仪器、过程方面的介绍,并进行了力学分析,总结分析结果,提出了改善高速公路交通安全的措施,指出了... 详细信息

从高速公路交通事故的统计资料出发,分析了汽车与高速公路护栏碰撞事故在交通事故中的比例及发展趋势,提出护栏碰撞研究。对护栏碰撞进行仪器、过程方面的介绍,并进行了力学分析,总结分析结果,提出了改善高速公路交通安全的措施,指出了本领域的研究展望。

关键词：高速公路护栏碰撞力学模型

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Three-dimensional fracture of UO2 ceramic pellets by phase field modeling

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 169-180页

作者： Wei Xiong Xuan ye Hongzhang Cheng Xiaoming Liu Institute of Nuclear and New Energy Technology Collaborative Innovation Center of Advanced Nuclear Energy Technology Key Laboratory of Advanced Reactor Engineering and Safety of Ministry of Education Tsinghua University State Key Laboratory of Nonlinear Mechanics Institute of Mechanics Chinese Academy of Sciences School of Engineering Science University of Chinese Academy of Sciences

Fracture is the primary failure type for the UO2ceramic pellets,which are operated under irradiation and thermal processes,and physically confined by the *** this work,by combining closely coupled physical processes of heat conduction,heat transfer,and mechanical deformation with the cohesive phase field framework,we proposed a high-precision modeling of quasistatic cracking of three-dimensional （3D） UO2ceramic fuel pellets under high temperature and *** simulation results agree well with the experimental results,indicating that the proposed method has the potential to capture 3D crack modes in the interested time ***,we studied the relation of the 3D fracture patterns of fuel pellets with the peak power *** was found that the power level plays a critical role in determining the competition between radial and circumferential cracks,as well as transverse penetrating cracks.

关键词： phase field method nuclear fuel pellet coupled thermo-mechanical model thermal fracture

Prussian Blue Analogue‑Templated Nanocomposites for Alkali‑Ion Batteries:Progress and Perspective

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Nano-Micro Letters 2025年第1期17卷 216-261页

作者： Jian‑En Zhou Yilin Li Xiaoming Lin Jiaye ye Key Laboratory of Theoretical Chemistry of Environment Ministry of EducationSchool of ChemistrySouth China Normal UniversityGuangzhou 510006People’s Republic of China School of Chemistry and Physics Faculty of ScienceQueensland University of Technology2 George StreetBrisbaneQLD 4000Australia Centre for Materials Science Queensland University of Technology2 George StreetBrisbaneQLD 4000Australia

Lithium-ion batteries(LIBs)have dominated the portable electronic and electrochemical energy markets since their commercialisation,whose high cost and lithium scarcity have prompted the development of other alkali-ion batteries(AIBs)including sodium-ion batteries(SIBs)and potassium-ion batteries(PIBs).Owing to larger ion sizes of Na^(+)and K^(+)compared with Li^(+),nanocomposites with excellent crystallinity orientation and well-developed porosity show unprecedented potential for advanced lithium/sodium/potassium *** enticing open rigid framework structures,Prussian blue analogues(PBAs)remain promising self-sacrificial templates for the preparation of various nanocomposites,whose appeal originates from the well-retained porous structures and exceptional electrochemical activities after thermal *** review focuses on the recent progress of PBA-derived nanocomposites from their fabrication,lithium/sodium/potassium storage mechanism,and applications in AIBs(LIBs,SIBs,and PIBs).To distinguish various PBA derivatives,the working mechanism and applications of PBA-templated metal oxides,metal chalcogenides,metal phosphides,and other nanocomposites are systematically evaluated,facilitating the establishment of a structure–activity correlation for these *** on the fruitful achievements of PBA-derived nanocomposites,perspectives for their future development are envisioned,aiming to narrow down the gap between laboratory study and industrial reality.

关键词： Prussian blue analogues Self-sacrificial template Lithium-ion batteries Sodium-ion batteries Potassium-ion batteries

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Insight Into the Separation-of-Variable Methods for the Closed-Form Solutions of Free Vibration of Rectangular Thin Plates

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 329-355页

作者： Yufeng Xing ye Yuan Gen Li Institute of Solid Mechanics Beihang University(BUAA)Beijing100191China

The separation-of-variable(SOV)methods,such as the improved SOV method,the variational SOV method,and the extended SOV method,have been proposed by the present authors and coworkers to obtain the closed-form analytical solutions for free vibration and eigenbuckling of rectangular plates and circular cylindrical *** taking the free vibration of rectangular thin plates as an example,this work presents the theoretical framework of the SOV methods in an instructive way,and the bisection–based solution procedures for a group of nonlinear eigenvalue ***,the explicit equations of nodal lines of the SOV methods are presented,and the relations of nodal line patterns and frequency orders are *** is concluded that the highly accurate SOV methods have the same accuracy for all frequencies,the mode shapes about repeated frequencies can also be precisely captured,and the SOV methods do not have the problem of missing roots as well.

关键词： Separation-of-variable method Rayleigh quotient nodal line eigenvalue equation bisection method