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National Science Review 2023年第12期10卷 174-180页

作者： yuhui hua Ming Luo Zhengyu Lu Hong Zhang Dafa Chen Haiping Xia Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis Department of ChemistrySouthern University of Science and Technology Department of Chemistry College of Chemistry and Chemical EngineeringXiamen University

The σ bond is an important concept in chemistry, and the metal–carbon(M–C) σ bond in particular is a central feature in organometallic chemistry. Synthesis of stable complexes with five coplanar M–C σ bonds is challenging. Here, we describe the synthesis of two different types of stable complexes with five coplanar M–C σ bonds, and examine the stability of such complexes which use rigid conjugated carbon chains to chelate with the metal center. Density functional theory(DFT) calculations show that the M–C σ bonds in these complexes have primarily a covalent character. Besides the σ nature, there are also a π conjugation component among the metal center and carbons, which causes delocalization. This work expanded the coplanar M–C σ bonds to five.

关键词： M–C bond polydentate ligands metallaaromatics DFT calculations aromaticity

Aromatic chloroosmacyclopentatrienes

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National Science Review 2023年第3期10卷 163-168页

作者： Zhenwei Chu Guomei He Chuan Shi yuhui hua Yaxi huang Jiangxi Chen Hujun Xie Guochen Jia Department of Materials Science and Engineering College of Materials Xiamen University Department of Chemistry The Hong Kong University of Science and Technology Department of Chemistry College of Chemistry and Chemical EngineeringXiamen University Department of Applied Chemistry Zhejiang Gongshang University

Aromatic metallacycles are of considerable current *** aromatic metallacycles are mainly those with carbon,nitrogen,oxygen and *** this work,we report the synthesis and characterization of aromatic chloroosmacyclopentatrienes,which represent the first structurally confirmed metallaaromatic with a chlorine atom in its ***-crystal X-ray diffraction studies show that these planar chloroosmacyclopentatrienes possess a very short Os-CIC distance suggesting M=CIC bond character.

关键词： metallacycles chlorometallacyclopentatriene osmium o-ethynylphenyl alkynes halocarbon complex

The First OCCCO Pentadentate Chelates:Osmium Mediated Stepwise Oxidations of Terminal Alkynes by Pyridine N-Oxide

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Chinese Journal of Chemistry 2020年第11期38卷 1273-1279页

作者： Jianfeng Lin Qiannan Xu Xinlei Lin yuhui hua Dafa Chen Yonghong Ruan Hong Zhang Haiping Xia College of Chemistry and Chemical Engineering Xiamen UniversityXiamenFujian 361005China Shenzhen Grubbs Institute Department of ChemistryGuangdong Provincial Key Laboratory of CatalysisSouthern University of Science and TechnologyShenzhenGuangdong 518055China

of main observation and conclusion Oxygen atom transfer reactions between alkynes and heteroarene N-oxides are currently mediated by transition metal,such as gold,ruthenium or rhodium,but they have never been catalyzed by ***,we report stepwise oxidations of terminal alkynes mediated by an osmium carbolong complex,using pyridine N-oxide as the oxidant,yielding novel aldehyde-or carboxylic acid-coordinated osmapentalyne derivatives *** mechanism was illustrated by density functional theory calculations,providing a new route for oxygen atom transfer between heteroarene N-oxides and alkynes.

关键词： oxides yielding conclusion

Alternative photothermal/electrothermal hierarchical membrane for hypersaline water treatment

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SusMat 2022年第6期2卷 679-688页

作者： Miao Wang Wen He yuhui hua Xinwen Xie Shiyan Chen Lei Zhou Yunmao Zhang Yaqi Hou Shihong Lin Haiping Xia Jing Zheng Xu Hou State Key Laboratory of Physical Chemistry of Solid Surfaces Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamenChina College of Materials Xiamen UniversityXiamenChina Research Institute for Biomimetics and Soft Matter Fujian Provincial Key Laboratory for Soft Functional Materials ResearchJiujiang Research InstituteCollege of Physical Science and TechnologyXiamen UniversityXiamenChina Shenzhen Grubbs Institute and Guangdong Provincial Key Laboratory of Catalysis Department of ChemistrySouthern University of Science and TechnologyShenzhenChina Collaborative Innovation Center of Chemistry for Energy Materials(iChEM) Xiamen UniversityXiamenChina Department of Civil and Environmental Engineering Vanderbilt UniversityNashvilleTennesseeUSA Interdisciplinary Material Science Program Vanderbilt UniversityNashvilleTennesseeUSA Tan Kah Kee Innovation Laboratory Xiamen UniversityXiamenChina Engineering Research Center of Electrochemical Technologies of Ministry of Education Department of ChemistryCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamenChina

Over the last decades,the treatment of the large quantities of hypersaline wastewater generated by conventional industries,inland desalination,and fossil-fueled power plants has been an important economic issue and also an inescapable green ***,we developed a versatile interfacial heating membrane with alternating utilization of electricity or solar energy for hypersaline water *** hierarchical membrane functions both as a separation membrane and an interface heater,which can quickly(5 wt%),with a high salt rejection rate of 99.99%.This system shows an efficient desalination strategy that can provide fresh water from brines for agriculture and industry,and even for daily life.

关键词： carbon nanotubes electrothermal hypersaline water treatment interface evaporate pho-tothermal

Carbolong Chemistry: Planar CCCCX-Type (X = N, O, S) Pentadentate Chelates by Formal [3+1] Cycloadditions of Metalla-Azirines with Terminal Alkynes

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CCS Chemistry 2021年第2期3卷 758-763页

作者： Ming Luo yuhui hua Kaiyue Zhuo Lipeng Long Xinlei Lin Zhihong Deng Zhenyang Lin Hong Zhang Dafa Chen Haiping Xia College of Chemistry and Chemical Engineering Xiamen UniversityXiamen Fujian Province Department of Chemistry The Hong Kong University of Science and TechnologyClear Water BayKowloonHong Kong Department of Chemistry Southern University of Science and TechnologyShenzhenGuangdong Province

Three-membered unsaturated rings have been widely utilized in organic synthesis due to their inherent highly strained *** much research has been applied to ring-expansion reactions of such strained ring systems,pathways other than[3+2]cycloadditions have rarely been observed in their reactions with alkynes,and to date,no[3+1]cycloadditions of isolated three-membered unsaturated rings with alkynes have been *** we demonstrate an unprecedented[3+1]cycloaddition in which a fused metalla-azirine is used as a template to generate a series of planar CCCCX-type(X=N,O,S)pentadentate carbolong complexes 3–6.A series of substituted alkynes was tested for further exploration of the scope and mechanism for the[3+1]cycloaddition *** 3–6 represent rare examples of planar pentadentate complexes that assemble fourπ-conjugated fused rings by one bridgehead *** novel complexes are thermally stable in air and absorb ultraviolet,visible,and near-infrared light,and thus are potentially applicable in photoelectric devices and pharmaceuticals.

关键词： [3+1]cycloaddition reaction DFT calculations,metallacycles strained rings planar pentadentate chelates carbolong complexes

Total Synthesis of Stemarene and Betaerene Diterpenoids:Divergent Ring-Formation Strategy and Late-Stage C–H Functionalization

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CCS Chemistry 2022年第3期4卷 987-995页

作者： Renzhi Chen Feng Zhang yuhui hua Dong Shi Xin Lei Hongxiu Xiao Yinong Wang Shihao Ding Yang Shen Yandong Zhang Department of Chemistry Department of Chemical Biologyand Key Laboratory of Chemical Biology of Fujian ProvinceiChEMCollege of Chemistry and Chemical EngineeringXiamen UniversityXiamenFujian 361005

A unified protecting group-free approach to two stemarene and two betaerene diterpenoids through a bioinspired two-phase strategy has been developed,and three of them were obtained for the first time via chemical *** from a common intermediate,two distinct tetracyclic frameworks containing diastereoisomeric bridged bicycles were constructed by a divergent ring reorganization ***-stage C–H functionalization through a xanthylation-oxygenation protocol furnished the corresponding oxygenated stereocenters or oxo functionality in high regio-and diastereoselective fashion within a complex hydrocarbon *** stereochemical puzzles in(–)-2-acetoxybetaer13(17)-ene and(+)-7-acetoxybetaer-13(17)-ene were first predicted by the comparison of density functional theory(DFT)-nuclear magnetic resonance(NMR)data with the reported data and then unambiguously addressed through the total syntheses of natural products and three diastereomers.

关键词： total synthesis late-stage C-H functionalization divergent synthesis diterpenoids structure reassignment

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芳香性:历史与发展

有机化学 2018年第1期38卷 11-28页

作者：华煜晖张弘夏海平厦门大学能源材料化学协同创新中心厦门361005 厦门大学化学化工学院厦门361005

芳香性是有机化学领域的重要概念,芳香性化合物通常具有特殊的稳定性.探究分子的芳香性不仅可以帮助我们更好地理解其稳定的本质,还可以预测和构建稳定或去稳定的分子骨架.开展芳香性研究,必须从芳香性的内涵与判定方法入手.主要介绍芳... 详细信息

芳香性是有机化学领域的重要概念,芳香性化合物通常具有特殊的稳定性.探究分子的芳香性不仅可以帮助我们更好地理解其稳定的本质,还可以预测和构建稳定或去稳定的分子骨架.开展芳香性研究,必须从芳香性的内涵与判定方法入手.主要介绍芳香性的起源、定义、相关的理论和实验判据,并将芳香性加以分类,以实例进一步分析芳香性的研究方法和研究内容.

关键词：芳香性反芳香性定义判据分类

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秋玉米SPAD值的光谱估算模型研究

作物杂志 2019年第5期 173-179页

作者：花宇辉高志强湖南农业大学农学院湖南长沙410128

研究不同秋玉米品种叶片SPAD值与一阶微分光谱的相关关系,筛选出8个品种的敏感波长和一阶微分光谱参数,建立不同品种SPAD值的一元线性、指数、多项式和基于一阶微分光谱参数的预测模型,计算建模集和验证集的均方根误差RMSE和相对误差RE... 详细信息

研究不同秋玉米品种叶片SPAD值与一阶微分光谱的相关关系,筛选出8个品种的敏感波长和一阶微分光谱参数,建立不同品种SPAD值的一元线性、指数、多项式和基于一阶微分光谱参数的预测模型,计算建模集和验证集的均方根误差RMSE和相对误差RE。结果发现,不同秋玉米品种SPAD值与光谱一阶微分相关系数较高,均在0.8以上;不同秋玉米品种光谱一阶微分的敏感波段位于650~680nm;基于敏感波长建立的SPAD值预测模型均表现出较好效果,多项式模型效果最佳,模型估测精度在不同品种间存在差异;在8个秋玉米品种中,正大999的多项式预测模型表现最佳,其建模集RMSE和RE分别为2.762和3.643%,其验证集RMSEv和REv分别为3.322和4.518%。

关键词：秋玉米 SPAD值光谱估算模型

抗肿瘤免疫关卡抑制剂致心脏药物不良反应分析

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中国现代应用药学 2018年第4期35卷 586-590页

作者：汪维佳华育晖王刚杭州市肿瘤医院药剂科杭州310002 杭州市第一人民医院药学部杭州310006

目的通过对免疫关卡抑制剂类药物致心脏不良反应文献的分析,探讨此类不良反应发生的规律,为临床合理应用免疫关卡抑制剂类药物提供参考。方法以伊匹单抗(Ipilimumab)、纳武单抗(Nivolumab)、派姆单抗(Pembrolizumab)、阿特珠单抗(Atezol... 详细信息

目的通过对免疫关卡抑制剂类药物致心脏不良反应文献的分析,探讨此类不良反应发生的规律,为临床合理应用免疫关卡抑制剂类药物提供参考。方法以伊匹单抗(Ipilimumab)、纳武单抗(Nivolumab)、派姆单抗(Pembrolizumab)、阿特珠单抗(Atezolizumab)、"Avelumab"和"Durvalumab"为检索词对截止2017年9月的Pub Med数据库进行致心脏药物不良反应文献检索,对患者的性别、年龄、原患疾病、药物使用情况及心脏不良反应临床表现等数据进行汇总并统计分析。结果共收集17例免疫关卡抑制剂致心脏不良反应的个案报道,其中报道最多的是Ipilimumab,其次为Nivolumab和Pembrolizumab;心脏不良反应临床诊断以心肌炎为最多(58.8%),其次为心律失常和心力衰竭;不良反应最快发生在首次用药后1周,最慢发生在首次用药后31周,中位数为9周;17例报告中有9例患者死亡。结论临床应重视免疫关卡抑制剂类药物的心脏不良反应。

关键词：免疫关卡抑制剂心脏药物不良反应

运用PDCA循环法管理医院药库药品供应的效果分析

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中国药业 2010年第11期19卷 39-40页

作者：华育晖王刚浙江省杭州市第一人民医院浙江杭州310006

目的探讨PDCA(计划、实行、检查、行动)循环法对医院药库药品供应管理的效果。方法对2008年7月至2009年6月医院药库运用PDCA循环法前后两种不同的管理方法进行回顾性对比分析。结果运用PDCA循环管理法后,药库管理有效使用率由原来的97.... 详细信息

目的探讨PDCA(计划、实行、检查、行动)循环法对医院药库药品供应管理的效果。方法对2008年7月至2009年6月医院药库运用PDCA循环法前后两种不同的管理方法进行回顾性对比分析。结果运用PDCA循环管理法后,药库管理有效使用率由原来的97.00%上升至98.90%(P<0.05),药品去向明确率由原来的98.50%上升至99.50%(P<0.05),药品不合格报损率由原来的3.00%下降至1.10%(P<0.05)。结论运用PDCA循环法对药库药品供应进行管理,能有效保证供应流程顺畅合理,从而保证医疗质量,减少医疗差错。

关键词：药品供应管理 PDCA循环法药品管理