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Science China Chemistry 2019年第2期62卷 212-219页

作者： Yujie Dong Suqian Ma Xiaoyu Zhang Jingyu Qian nianyong zhu Bin Xu Cheuk-Lam Ho Wenjing Tian Wai-Yeung Wong Institute of Molecular Functional Materials and Department of Chemistry Hong Kong Baptist University State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology College of Chemical Engineering Zhejiang University of Technology State Key Laboratory of Supramolecular Structure and Materials Jilin University Department of Applied Biology & Chemical Technology The Hong Kong Polytechnic University

A terpyridine-substituted cyanostilbene derivative(Z)-2-(4′-([2,2′:6′,2″-terpyridin]-4′-yl)-[1,1′-biphenyl]-4-yl)-3-phenylacrylonitrile(CNSTPy) was synthesized and characterized. The compound exhibits remarkable aggregation-induced emission phenomenon and its single crystal shows a blue emission with fluorescent efficiency as high as 45%. Based on its aggregation state behavior, multiple applications towards exploring its lasing, fluorescence switching and electroluminescence properties were realized. Amplified spontaneous emission(ASE) was observed from the crystal and verified by the variable pump strip method, with a threshold value of ～1.5 m J cm^(-2). The protonation/deprotonation processes accompanied by the formation of different molecular aggregation structure result in the distinct blue and yellow emissions. Additionally, the molecule also shows a moderate electroluminescence performance.

关键词： aggregation-induced emission cyanostilbene amplified spontaneous emission protonation effect

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THE SYNTHESIS AND CRYSTAL STRUCTURE OF A CUBANE-LIKE MOLYBDENUM-COPPER-SULFUR CLUSTER {Mo3CuS4[S2P(OC2H5)2]3(I)(μ-CCl3(00)CH3CN}

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结构化学 1988年第2期 137-141页

作者： Wu Xintao Zheng Yifan zhu nianyong Lu JiaxiFuzhou Laboratory of Structural Chemistry, Fujian Institute of Research onthe Structure of Matter, Academia Sinica

The synthesis and crystal structure of the cubane-like cluste with [Mo3CuS4] core is reported herein. The title compound crystallizes i triclinic space group Pl with the following unit cell dimensions: a 11.723(3), b = 14.353(6), c = 15.533(4)A;α= 75.40(3)°,β=69.13(2)°,γ 64.93(3)°; Z = 2; V = 2196 A3; DC = 2.033 g·cm-3.7704 independent reflec tions were collected on CAM four-circle diffractoneter with MoKa radiatio in the range of 1 3σ(I). The structure was determined by direct methods and refined b the least-squares method to a final R index of 0.091. There are some distortion in the cubane-like [Mo3CuS4] core, with three Mo-Mo bonds and thre weak Mo-Cu bonds.

关键词： CuS OC2H5)2]3 CH3CN CCl3 THE SYNTHESIS AND CRYSTAL STRUCTURE OF A CUBANE-LIKE MOLYBDENUM-COPPER-SULFUR CLUSTER Mo3CuS4[S2P CN

Lithographic patterning of ferromagnetic FePt nanoparticles from a single-source bimetallic precursor containing hemiphasmidic structure for magnetic data recording media

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Science China Materials 2019年第4期62卷 566-576页

作者： Zhengong Meng Cheuk-Lam Ho Hon-Fai Wong Zhen-Qiang Yu nianyong zhu Guijun Li Chi-Wah Leung Wai-Yeung Wong College of Chemistry and Environmental Engineering Shenzhen University Institute of Molecular Functional Materials and Department of Chemistry Hong Kong Baptist University HKBU Institute of Research and Continuing Education Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University Department of Applied Physics The Hong Kong Polytechnic University

Patterning of L10 FePt nanoparticles(NPs) with high coercivity offers a promising route to develop bit-patterned media(BPM) for the next generation magnetic data recording system, but the synthesis of monodisperse FePt NPs and mass production of their nanopatterns has been a longstanding challenge. Here, highly efficient nanoimprint lithography was applied for large-scale universal patterning, which was achieved by imprinting the solution of a single-source bimetallic precursor. The rigid coplanar metallic cores and the surrounding flexible tails in the bimetallic complex permit the spontaneous molecular arrangements to form the highly ordered negative morphology replicated from the soft ***-situ pyrolysis study was then investigated by one-pot pyrolysis of the precursor under an Ar/H2 atmosphere, and the resultant NPs were fully characterized to identify the phase,morphology and magnetic properties. Finally, highly-ordered patterns on certain substrates were preserved perfectly after pyrolysis and could be potentially utilized in magnetic data recording media.

关键词： FePt nanoparticles single-source bimetallic precursors one-pot pyrolysis lithographic patterning magnetic data recording media

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Effects of Different Tree Species and Proportions on Soil Fertility Quality in Eucalyptus Mixed Plantation

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Meteorological and Environmental Research 2022年第3期13卷 74-77,81页

作者： Haitao JIANG nianyong ZHAN Lin JIANG Heng QIN Jianying DENG Yuanli zhu Junyu ZHAO Jian TANG Guangxi State-owned Weidu Forest Farm Laibin 530229China Guangxi State-owned Qipo Forest Farm Nanning 530225China Guangxi zhuang Autonomous Region Forestry Research Institute/Guangxi Research and Development Center for New Forestry Fertilizer Nanning 530002China

In order to study the effects of Eucalyptus mixed plantation with different mixed tree species and mixed proportion on soil nutrient accumulation and fertility quality, Eucalyptus-Mytilaria laosensis and Eucalyptus-Magnolia sumatrana mixed plantations in Guangxi State-owned Qipo Forest Farm were selected as the research objects. Based on 15 conventional soil fertility indexes, the minimum data set and membership function method were used to evaluate the soil fertility quality of mixed plantations with different structures. The results showed that compared with pure forest, the soil organic matter, total nitrogen, total potassium, alkali hydrolyzable nitrogen, available phosphorus, available potassium and other nutrients of mixed plantations with different treatments were significantly increased, and the contents of Cu and Zn in trace elements were most significantly increased. Compared with pure forest, the soil fertility quality of mixed plantations with different structures was significantly improved. The treatment with the highest soil fertility quality was 25% of Eucalyptus-M. sumatrana mixed plantation. When formulating production and management strategies, it can refer to construction measures of the mixed plantation to ensure the sustainability of forest soil fertility, and promote the healthy and sustainable development of Eucalyptus plantation and downstream industries in Guangxi.

关键词： Minimum data set Membership function Mixed plantation Sustainable management

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美国证券注册制及证券监管对我国的启示

西南金融 2019年第10期 46-56页

作者：王年咏朱云轩陈尚静荷陈九龙中南财经政法大学金融学院湖北武汉430073 中国人民大学财政金融学院北京100872 中国人民大学法学院北京100872

本文通过聚焦美国的注册制及证券监管制度,分析我国注册制实行前证券市场存在的相关问题,并研究科创板注册制的实行对相关问题的改进。同时,讨论了科创板“注册制”在短期内可能面对的问题及挑战:信息披露质量问题、大股东或责任人责任... 详细信息

本文通过聚焦美国的注册制及证券监管制度,分析我国注册制实行前证券市场存在的相关问题,并研究科创板注册制的实行对相关问题的改进。同时,讨论了科创板“注册制”在短期内可能面对的问题及挑战:信息披露质量问题、大股东或责任人责任约束、证券市场监管及有效处罚。通过综合对比分析美国资本市场在信息披露、司法保障、行政执法、和解制度及自律监管方面的经验,有针对性地提出以投资者为导向,提升信息披露质量;完善司法保障,落实法律责任;加强行政监管,强化执法能力;建立证券执法和解制度;完善自律监管机制。最终实现对中小投资者利益的切实保护,促进注册制行稳致远。

关键词：证券注册制科创板 IPO 证券监管集团诉讼退市制度内部人控制信息不对称信息披露自律监管投资者利益资本市场改革监管处罚

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