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The 2^(nd)Asian Conference on Porphyrins,Phthalocyanines and Related Materials

Chinese Chemical Letters 2024年第7期35卷 1-3页

作者： Gaojie Zhu Zhen Yang Shijun Li Weihua Zhu Rui Cao Junlong Zhang jianzhang zhao Jonathan L.Sessler Xunjin Zhu Jianxin Song Yongshu Xie Jianzhuang Jiang Key Laboratory for Advanced Materials and Institute of Fine Chemicals School of Chemistry and Molecular EngineeringEast China University of Science&TechnologyShanghai 200237China College of Material Chemistry and Chemical EngineeringKey Laboratory of Organosilicon Chemistry and Material Technology of Ministry of EducationHangzhou Normal UniversityHangzhou 311121China School of Chemistry and Chemical Engineering Jiangsu UniversityZhenjiang 212013China Key Laboratory of Applied Surface and Colloid Chemistry Ministry of EducationSchool of Chemistry and Chemical EngineeringShaanxi Normal UniversityXi'an 710119China Beijing National Laboratory for Molecular Sciences State Key Laboratory of Rare Earth Materials Chemistry and ApplicationsCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China State Key Laboratory of Fine Chemicals Frontier Science Center for Smart MaterialsSchool of Chemical EngineeringDalian University of TechnologyDalian 116024China Department of Chemistry The University of TexasAustinTexas 78712-1224United States Department of Chemistry and Institute of Advanced Materials Hong Kong Baptist UniversityHong Kong 999077China Key Laboratory of Chemical Biology and Traditional Chinese Medicine(Ministry of Educational of China) Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan ProvinceCollege of Chemistry and Chemical EngineeringHunan Normal UniversityChangsha 410081China Beijing Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory for Science and Application of Functional Molecular and Crystalline MaterialsDepartment of Chemistry and Chemical EngineeringSchool of Chemistry and Biological EngineeringUniversity of Science and Technology BeijingBeijing 100083China

In the past decades,porphyrins,phthalocyanines and related materials have attracted significant attention due to their diverse and brilliant structures[1,2],as well as their unique electronic structures and photophysi... 详细信息

关键词： cyanine phthalocyanine Porphyrin

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妊娠期重金属混合暴露与新生儿出生体重关联的研究

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中华预防医学杂志 2024年第7期58卷 1055-1061页

作者：赵建章白文琳袁苗董美祺房瑞玲余红梅山西医科大学医学科学院太原030001 山西医科大学公共卫生学院太原030001 煤炭环境致病与防治教育部重点实验室太原030001 重大疾病风险评估山西省重点实验室太原030001

妊娠期重金属混合暴露对新生儿出生体重的影响一直备受关注。本研究选取美国新罕布什尔州出生队列研究(NHBCS)中258对母婴作为研究对象,采集了胎盘中铝(Al)、钴(Co)、铬(Cr)、镍(Ni)、铅(Pb)、硒(Se)、砷(As)等七种重金属的浓度,同时收... 详细信息

妊娠期重金属混合暴露对新生儿出生体重的影响一直备受关注。本研究选取美国新罕布什尔州出生队列研究(NHBCS)中258对母婴作为研究对象,采集了胎盘中铝(Al)、钴(Co)、铬(Cr)、镍(Ni)、铅(Pb)、硒(Se)、砷(As)等七种重金属的浓度,同时收集新生儿出生体重及母亲和新生儿的相关协变量信息。采用加权分位数和回归(WQS)、分位数g计算(QGC)和贝叶斯核机器回归(BKMR)三种方法进行分析。调整了母亲孕龄、孕前BMI、吸烟状况、受教育程度、产次、胎龄及新生儿性别后,综合三种方法表明七种重金属混合暴露对出生体重的总效应呈负向关系。具体来看,WQS结果显示,Se对出生体重的效应最大,其次为Al;QGC结果显示,与女婴出生体重降低相关的重金属主要是Se,与男婴出生体重降低相关的主要是Al;BKMR结果显示,胎盘7种重金属混合暴露对男婴和女婴的出生体重都有负联合效应,按性别分层后,女婴中后验包含概率(PIP)最高的是Se(0.45),男婴中PIP最高是Al(0.64)。综上表明,妊娠期重金属混合暴露与新生儿出生体重降低相关,且存在性别差异,Se和Al分别与女婴和男婴的出生体重降低相关联。这一发现为预防不良妊娠结局和制定改善新生儿健康状况的卫生政策提供了理论依据。

关键词：重金属混合暴露新生儿出生体重加权分位数和回归贝叶斯核机器回归分位数g计算

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Improving photosensitization for photochemical CO2-to-CO conversion

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National Science Review 2020年第9期7卷 1459-1467页

作者： Ping Wang Ru Dong Song Guo jianzhang zhao Zhi-Ming Zhang Tong-Bu Lu MOE International Joint Laboratory of Materials Microstructure Institute for New Energy Materials and Low Carbon Technologies School of Materials Science and EngineeringTianjin University of Technology State Key Laboratory of Fine Chemicals School of Chemical Engineering Dalian University of Technology

Inspired by nature, improving photosensitization represents a vital direction for the development of artificial photosynthesis. The sensitization ability of photosensitizers(PSs) reflects in their electron-transfer ability, which highly depends on their excited-state lifetime and redox potential. Herein, for the first time,we put forward a facile strategy to improve sensitizing ability via finely tuning the excited state of Ru(Ⅱ)-PSs(Ru-1–Ru-4) for efficient CO2reduction. Remarkably, [Ru(Phen)2(3-pyrenyl Phen)]2+(Ru-3) exhibits the best sensitizing ability among Ru-1–Ru-4, over 17 times higher than that of typical Ru(Phen)32+. It can efficiently sensitize a dinuclear cobalt catalyst for CO2-to-CO conversion with a maximum turnover number of 66 480. Systematic investigations demonstrate that its long-lived excited state and suitable redox driving force greatly contributed to this superior sensitizing ability. This work provides a new insight into dramatically boosting photocatalytic CO2reduction via improving photosensitization.

关键词： photosensitization photocatalysis CO2 reduction excited state Ru(II) complexes

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Synthesis, properties and application of novel 5,6,5,6-tetracyclic pyrazine/pyrrole-fused unsymmetric bis（BF2） fluorescent dyes:BOPYPYs

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Chinese Chemical Letters 2019年第12期30卷 2271-2273页

作者： Xindong Jiang Shuai Yue Kepeng Chen Zhumei Shao Chen Li Yajun Su jianzhang zhao College of Applied Chemistry Shenyang University of Chemical TechnologyShenyang 110142China State Key Laboratory of Fine Chemicals Dalian University of TechnologyDalian 116024China Department of Chemistry Graduate School of ScienceHiroshima UniversityHigashi-Hiroshima 739-8526Japan

Novel 5,6,5,6-tetracyclic pyrazine/pyrrole-fused unsymmetric bis(BF2) fluorescent dyes(BOPYPYs) were obtained by reaction of pyrrole-2-carboxaldehyde with 1-(pyrazin-2-yl)hydrazine in the presence of Et3 N-BF3·Et2 O for the first *** absorption maxima of pyrazine-fused BOPYPY are obviously bathochromic shifts,in contrast to those of the reported BOPPY,indicating that the discrepant substitute groups between pyridine and pyrazine result in the remarkable wavelength *** new series of BO PYPYs possess high molar extinction coefficients,high fluorescence quantum yields,and larger Stokes shifts.A Knoevenagel reaction of BOPYPY with 4-dimethylaminobenzaldehyde smoothly produced the dye with the extension of π-***-containing BOPYPY as a pH-responsive fluorescent sensor could detect pH value.

关键词： BOPYPY Pyrazine Fluorescent dye Unsymmetric pH

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Bodipy-Squaraine Dyads:Preparation and Study of the Intramolecular Energy Transfer,Charge Separation and Intersystem Crossing

Bodipy-Squaraine Dyads:Preparation and Study of the Intramol...

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中国化学会第四届卟啉与酞菁学术研讨会

作者： Yu Dong jianzhang zhao State Key Laboratory of Fine Chemicals Dalian University of Technology

It’s important to study the F?rster Resonance Energy Transfer（FRET）,charge transfer and other photophysical process of multi-chromophore molecules for designing triplet photosensitizers with the properties of strong ability of visible light-harvesting and efficient intersystem crossing [1,2].Two triads（BDP-SQ and Styryl-BDP-SQ） were prepared with Bodipy,styrylBodipy and Squaraine（SQ） *** units show efficient intersystem crossing（ISC.（37）T = 50%）,[3] and BODIPY dyes show strong ability of visible light-harvesting.[4,5] The cascade photophysical properties of the triads were studied with steady state and time-resolved optical spectroscopies,as well as with electrochemical characterization and theoretical *** FRET process can be observed in both BDP-SQ and *** process exists in triad BDP-SQ is attributed to S1?T1 *** ISC is competed by fast FRET and charge separation（CS） process in *** BDP-SQ,the singlet energy transfer kinetics is associated with solvent polarity and it was found to be 1.6 and 0.6 ps in toluene and acetonitrile,***,the fast CS process takes 17 ps and 2 ps in toluene and acetonitrile for Styryl-BDP-SQ,*** results may be useful for future design of photosensitizers with strong visible light absorption and vectorial energy funneling.

关键词： Charge Separation Charge Recombination FRET Intersystem Crossing Triplet State

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Ru(bpy)3[PF6]2 Complex with Flavin Unit:Preparation and Study of Photophysical/Photochemical Properties

Ru(bpy)3[PF6]2 Complex with Flavin Unit:Preparation and Stud...

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中国化学会第四届卟啉与酞菁学术研讨会

作者： Lijuan Zhu jianzhang zhao Huimin Guo College of Chemistry Dalian University of Technology State Key Laboratory of Fine Chemicals Dalian University of Technology

Flavin is one kind of derivatives of riboflavin,which is also called vitamin *** date,it’s mainly applied in metabolic process as a coenzyme,and rarely applied as a triplet photosensitizer for photocatalysis,photodynamic therapy(PDT),photo-oxidation and triplet-triplet annihilation ***,in order to study the influence of flavin unit on the photophysical and photochemical properties of the transition metal complexes,we designed and synthesized ruthenium complexes with flavin ***-Vis absorption spectra and steady state luminescence spectra are presented in Fig.1(b) and(c).With the introduction of flavin unit,Ru-1 shows a stronger intense absorption and a small hypochromic shift compared with parent compound *** photoluminescence spectra was also measured under N and air atmosphere at ***.1(c) shows that the presence of oxygen quenches the triplet excited *** is attributed to the MLCT emission peak of the Ru(II) complex.

关键词： Flavin Ru(Ⅱ) complex UV-Vis absorption spectra Steady state luminescence spectra

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Sulfur vs. tellurium: the heteroatom effects on the nonfullerene acceptors

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Science China Chemistry 2019年第7期62卷 897-903页

作者： Lei Yang Linqing Qin Yunxiao Xu Huotian Zhang Lei Lv Kepeng Chen Xinyu Sui Yangguang Zhong Yuan Guo Feng Gao jianzhang zhao Yuhao Li Xinfeng Liu Yuanping Yi Xinhui Lu Aidong Peng Hui Huang College of Materials Science and Optoelectronic Technology Center of Materials Science and Optoelectronics Engineering CAS Center for Excellence in Topological Quantum Computation CAS Key Laboratory of Vacuum Physic University of Chinese Academy of Sciences Beijing 101408 China Department of Chemical Engineering Imperial College London London SW7 24Z United Kingdom Biomolecular and Organic Electronics Department of Physics Chemistry and Biology (IFM) Linkoping University Linkuping SE-58183 Sweden Division of Nanophotonics CAS Key Laboratory of Standardization and Measurement for Nanotechnology CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology Beijing 100190 China University of Chinese Academy of Sciences Beijing 100049 China State Key Laboratory of Fine Chemicals School of Chemical Engineering Dalian University of Technology Dalian 116024 China Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids CAS Research/Education Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China Department of Physics The Chinese University of Hong Kong Shatin NT 999077 Hong Kong China

The effect of chalcogen heteroatom variation on donor materials has been systematically investigated. However, this effect on acceptors has rarely been explored. Herein, nonfullerene acceptors BFPSP and BFPTP were reported by simply changing the chalcogen atoms from S to Te. The differences between BFPSP and BFPTP in light absorption, energy levels, excited-state lifetimes, energy loss, charge mobilities, morphology, and photovoltaic properties were systematically investigated to understand the heteroatom effects. More importantly, the electroluminescence spectra, external quantum efficiency of photovoltaics and TDDFTcalculations revealed that the triplet excited state(T1) in energy of BFPTP equals to the charge transfer(CT) state in PBDBT:BFPTP, which allows T1 excitons, generated by intersystem crossing, to split into free charges to contribute to the *** contribution provides a strategy for tuning the photophysical properties of nonfullerene acceptors and designing high performance triplet materials for OSCs.

关键词： heteroatom effects triplet state tellurophene nonfullerene acceptor organic solar cells

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Triplet State of Bodipy Accessed by Charge Recombination and Its Application in Triplet-Triplet Annihilation Upconversion

Triplet State of Bodipy Accessed by Charge Recombination and...

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中国化学会第四届卟啉与酞菁学术研讨会

作者： Kepeng Chen Wei ji jianzhang zhao State Key Laboratory of Fine Chemicals Dalian University of Technology College of Chemistry Dalian University of Technology

Two Bodipy phenothiazine dyads(BDP-1 and BDP-2) with different length of linker and orientation of the components were prepared [1].The triplet state formation of Bodipy chromophore was achieved via photo-induced electron transfer and charge recombination(CR).BDP-1 has a longer linker between the phenothiazine and the Bodipy chromophore than *** the two chromophores in BDP-2 assume a more an orthogonal geometry than BDP-1 both at the ground and in the first excited *** fluorescence of the BDP moiety was significantly quenched in the *** a preliminary steady state spectroscopic characterization,the charge separation(CS) and charge recombination(CR) dynamics of the dyads were studied with femtosecond transient absorption spectroscopy(k CS = 2.2×10 s,2×10 s for BDP-1 and BDP-2,respectively;kCR = 4.5×10 s,1.5×10 s for BDP-1 and BDP-2,respectively,in acetonitrile).Formation of the triplet excited state of the Bodipy moiety was observed for both dyads upon photoexcitation [2],however the triplet state quantum yield depends both on the linker length and the orientation of the chromophores(triplet state quantum yields are 13.4%,97.5% and lifetimes are 1.4 ms,116 ms,for BDP-1 and BDP-2,respectively).We propose that a spin-orbit charge transfer(SO-CT) mechanism is responsible for the efficient triplet *** dyads were used for triplet-triplet-annihilation upconversion and the upconversion quantum yield is up to 3.2% [3,4].

关键词： Bodipy Phenothiazine Charge Separation Charge Recombination Triplet State

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Direct Observation of 3IL Emission of Flavin within a Ruthenium(Ⅱ) Polyimine Complexe

Direct Observation of 3IL Emission of Flavin within a Ruthen...

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全国第十九届大环化学暨第十一届超分子化学学术讨论会

作者： Can Dang Lijuan Zhu Huimin Guo jianzhang zhao Department of Chemistry Dalian University of Technology

A bipyridine Ruthenium(Ⅱ) complex(Ru-1) with a flavin moiety connected to one of the bipyridine ligand via acetylene bond was designed and synthesized, and the photophysics properties were *** with the tris(bipyridine) Ru(Ⅱ) complex(Ru-0) which has ε = 1.36 ×10 M cm at 453 nm, the introduction of flavin moiety facilitates Ru-1 with strong absorption in

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具有强可见光吸收的富勒烯-Bodipy衍生物作为光催化剂在硫醚光催化氧化中的应用

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影像科学与光化学 2014年第5期32卷 471-483页

作者：黄灵赵建章大连理工大学化工学院精细化工国家重点实验室辽宁大连116024

以氟硼吡咯染料(Bodipy)做为光吸收天线,富勒烯作为分子内自旋转换单元,分别利用前者的强吸光以及后者的高效系间窜越的优点,制备了吸收波长灵活可调、无重原子、具有强可见光吸收能力、长寿命三重激发态(92.1μs)的二元(Dyad)、三元化... 详细信息

以氟硼吡咯染料(Bodipy)做为光吸收天线,富勒烯作为分子内自旋转换单元,分别利用前者的强吸光以及后者的高效系间窜越的优点,制备了吸收波长灵活可调、无重原子、具有强可见光吸收能力、长寿命三重激发态(92.1μs)的二元(Dyad)、三元化合物(Triad)做为有机三重态光敏剂;其中Triad具有宽谱带可见光吸收能力,提高了光敏剂参与的分子间能量转移或电子转移过程的效率。与传统的Ru(Ⅱ)配合物等三重态光敏剂相比,光催化硫醚氧化的反应时间大大缩短。通过吉布斯自由能的计算、活性氧物种的捕获实验、电子顺磁共振等方法,证明了在光催化氧化硫醚的反应过程中,同时存在超氧负离子自由基和单线态氧两个活性物种,从而加快了光催化氧化反应速率。该研究结果将对新型有机三重态光敏剂的分子结构设计以及在光催化有机合成反应中的应用起到一定的促进作用。

关键词： Bodipy 富勒烯能量转移三重态光敏剂光催化硫醚

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