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学者姓名：袁耀锋
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Abstract ：
Two o-carborane based tetraphenylethene (TPE) cationic cyclophanes O1·4PF6 and O2·4PF6 were synthesized through an SN2 reaction. Their structures were confirmed both possessing Z-shaped cavities in single crystal analysis. The optical properties of these macrocycles were systematically investigated using UV–vis spectroscopy and fluorescence techniques. It is worth noting that the introduction of a methoxy group to the TPE unit enables the synthesis of a near-infrared-emitting macrocycle O2·4PF6. The recognition behaviors of these two macrocycles towards nucleotides were investigated using various techniques including fluorescence titration, UV–vis titration, and transmission electron microscopy (TEM). Interestingly, these cyclophanes exhibited aggregation-induced emission (AIE) effects in water or under the induction of nucleotides. © 2024
Keyword ：
AIE effect AIE effect Cationic cyclophanes Cationic cyclophanes Nucleotides Nucleotides o-Carborane o-Carborane Tetraphenylethene Tetraphenylethene
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| GB/T 7714 | Chen, R. , Liu, J. , Lin, C. et al. Synthesis and properties of tetraphenylethene cationic cyclophanes based on o-carborane skeleton [J]. | Chinese Chemical Letters , 2024 , 35 (12) . |
| MLA | Chen, R. et al. "Synthesis and properties of tetraphenylethene cationic cyclophanes based on o-carborane skeleton" . | Chinese Chemical Letters 35 . 12 (2024) . |
| APA | Chen, R. , Liu, J. , Lin, C. , Li, Y. , Geng, Y. , Yuan, Y. . Synthesis and properties of tetraphenylethene cationic cyclophanes based on o-carborane skeleton . | Chinese Chemical Letters , 2024 , 35 (12) . |
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A novel multi-site receptor 1 bearing four ferrocenyl arms comprising benzimidazolium moieties was synthesized and structurally characterized by IR, NMR, elemental analysis, mass spectra. Moreover, the structure of receptor 1 was confirmed by X-ray crystallography, it was clear that the cationic heterocyclic was interacted with PF6− through C–H···F hydrogen bonds. Its electrochemical properties of sensing the various anions were investigated by cyclic voltammograms (CV) and differential pulse voltammetry (DPV), the receptor 1 displayed a significant cathodic shift for F−and OH−. The addition of F− and OH−to the solution of receptor 1 resulted in obvious absorption changes in the UV–Vis spectrum, showing that receptor 1 was an excellent sensor for these analytes (F−: LOD = 3.11 × 10−6 M, LOQ = 1.03 × 10−5 M, Ka = 5.83 × 105 M−1; and OH–: LOD = 1.36 × 10−6 M, LOQ = 4.11 × 10−5 M, Ka = 9.03 × 105 M−1). 1H NMR titrations demonstrated that anion was recognized by receptor 1 through (C–H)+···X− and C–H···X hydrogen bonds, the binding process involve initial formation of hydrogen bond and followed by deprotonation. © 2024
Keyword ：
1H NMR spectroscopy 1H NMR spectroscopy Anion receptor Anion receptor Benzimidazolium salt Benzimidazolium salt Electrochemistry Electrochemistry Ferrocene Ferrocene UV-vis UV-vis
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| GB/T 7714 | Zhuo, J.-B. , Yan, J.-F. , Yuan, Y.-F. . Electrochemical and optical recognition studies of anions using a multi-site ferrocene-based benzimidazolium receptor [J]. | Journal of Organometallic Chemistry , 2024 , 1021 . |
| MLA | Zhuo, J.-B. et al. "Electrochemical and optical recognition studies of anions using a multi-site ferrocene-based benzimidazolium receptor" . | Journal of Organometallic Chemistry 1021 (2024) . |
| APA | Zhuo, J.-B. , Yan, J.-F. , Yuan, Y.-F. . Electrochemical and optical recognition studies of anions using a multi-site ferrocene-based benzimidazolium receptor . | Journal of Organometallic Chemistry , 2024 , 1021 . |
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Electrocatalytic semi-hydrogenation of acetylene to ethylene has recently attracted attention as a process for removing acetylene from ethylene-rich gas streams due to its mild conditions and energy-saving advantages. However, developing catalysts with low cost and high selectivity for acetylene semi-hydrogenation remains a huge challenge. Here, we investigated the effect of hydroxyl group modification on the acetylene semi-hydrogenation selectivity of poly(heptazine imide) (PHI) supported metal single atom catalyst under alkaline conditions by density functional theory calculations. The results show that hydroxyl group as ligand not only increases the steric resistance of acetylene adsorption, but also acts as electron-withdrawing group to delocalize the electrons of metal atoms, weaken the interaction with acetylene and subsequent intermediates, and make the adsorption moderate, which is beneficial to the desorption of ethylene and avoid over-hydrogenation. The Ni-OH/PHI and Fe-2OH/PHI are capable of achieving the selective hydrogenation of acetylene to ethylene and have good thermodynamic stability, which can be used as ideal catalysts for the electrocatalytic semi-hydrogenation of acetylene to selectively generate ethylene. This study provides theoretical guidance for the rational design of electrocatalysts for the selective semi-hydrogenation of acetylene. © 2024 Elsevier B.V.
Keyword ：
Acetylene semi-hydrogenation Acetylene semi-hydrogenation Density functional theory calculations Density functional theory calculations Hydroxyl group Hydroxyl group Metal single atom Metal single atom Poly(heptazine imide) Poly(heptazine imide)
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| GB/T 7714 | Chen, X. , Li, Y. , Yuan, Y. et al. Hydroxyl group modification improves the selectivity of metal single atom on poly(heptazine imide) for electrocatalytic acetylene semi-hydrogenation [J]. | Applied Surface Science , 2024 , 678 . |
| MLA | Chen, X. et al. "Hydroxyl group modification improves the selectivity of metal single atom on poly(heptazine imide) for electrocatalytic acetylene semi-hydrogenation" . | Applied Surface Science 678 (2024) . |
| APA | Chen, X. , Li, Y. , Yuan, Y. , Lin, W. . Hydroxyl group modification improves the selectivity of metal single atom on poly(heptazine imide) for electrocatalytic acetylene semi-hydrogenation . | Applied Surface Science , 2024 , 678 . |
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Development of earth-abundant, low-cost and easily synthesizable catalysts for the semi-hydrogenation of acetylene is urgently needed. Here, we have systematically investigated the structure, electronic properties, hydrogen dissociation, and acetylene semi-hydrogenation activity and selectivity of poly(heptazine imide) (PHI) loaded with different sizes of Cun (n = 1,2,4,13) clusters (Cun/PHI) by density functional theory calculations. The results show that Cu4/PHI with tetrahedral configuration has a better hydrogenation activity in the acetylene semi-hydrogenation reaction with H adsorbed in the vicinity of acetylene and subsequent intermediates in a non-bridge position, resulting in a smaller hydrogenation energy barrier. In addition, the top Cu atom transfers a large number of electrons to the bottom Cu atoms and PHI, and only a small number of electrons transfer to ethylene, resulting in weak adsorption of ethylene and easy desorption, which makes it good selectivity and therefore it can be used as a candidate catalyst for the semi-hydrogenation of acetylene. This study provides insights into the design of catalysts with suitable size clusters loaded on carbon nitride materials for efficient acetylene semi-hydrogenation reactions. © 2024 Elsevier B.V.
Keyword ：
Acetylene Acetylene Carbon nitride Carbon nitride Copper alloys Copper alloys Hydrogenation Hydrogenation Reaction intermediates Reaction intermediates
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| GB/T 7714 | Chen, Xiaoxiao , Li, Yi , Yuan, Yaofeng et al. What size of Cun clusters loaded on poly(heptazine imide) have better catalytic performance for acetylene semi-hydrogenation? [J]. | Molecular Catalysis , 2024 , 569 . |
| MLA | Chen, Xiaoxiao et al. "What size of Cun clusters loaded on poly(heptazine imide) have better catalytic performance for acetylene semi-hydrogenation?" . | Molecular Catalysis 569 (2024) . |
| APA | Chen, Xiaoxiao , Li, Yi , Yuan, Yaofeng , Lin, Wei . What size of Cun clusters loaded on poly(heptazine imide) have better catalytic performance for acetylene semi-hydrogenation? . | Molecular Catalysis , 2024 , 569 . |
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Polyferrocene macrocycles hold immense potential in the fields of molecular electronics and electrochemistry, primarily due to their multiple metal centers. However, developing highly efficient synthetic strategies for constructing these rings remains a significant challenge. In this study, we successfully synthesized triferrocenyl macrocycles using Pt-mediated coupling strategy and determined their configuration using single-crystal X-ray diffraction analysis, revealing a structure reminiscent of the Penrose Stair. We comprehensively investigated the macrocycle’s structure, photophysical properties, and employed density functional theory (DFT) calculations to gain further insights. Notably, this macrocycle exhibits several advantageous features, including a flexible structure, good solubility, and a highly efficient synthetic pathway. (Figure presented.). © Jilin University, The Editorial Department of Chemical Research in Chinese Universities and Springer-Verlag GmbH 2024.
Keyword ：
Conjugated macrocycle Conjugated macrocycle Organometallic macrocycle Organometallic macrocycle Pt-template method Pt-template method
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| GB/T 7714 | Xu, J. , Lan, B. , Zhu, L. et al. Synthesis and Properties of Ferrocene Conjugated Macrocycles with Illusory Topology of the Penrose Stairs [J]. | Chemical Research in Chinese Universities , 2024 , 40 (5) : 881-886 . |
| MLA | Xu, J. et al. "Synthesis and Properties of Ferrocene Conjugated Macrocycles with Illusory Topology of the Penrose Stairs" . | Chemical Research in Chinese Universities 40 . 5 (2024) : 881-886 . |
| APA | Xu, J. , Lan, B. , Zhu, L. , Xu, H. , Chen, X. , Li, W. et al. Synthesis and Properties of Ferrocene Conjugated Macrocycles with Illusory Topology of the Penrose Stairs . | Chemical Research in Chinese Universities , 2024 , 40 (5) , 881-886 . |
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Abstract ：
研究生教育是高等教育的最高层次,是衡量一个国家高等教育竞争力的关键标志,是拔尖创新人才自主培养的主渠道.为了提高人才培养质量,在"以学生为中心,注重科学思维培养,注重科研能力培养以及注重国际视野培养"的教学思想指导下,针对有机结构分析课程教学过程中存在的难点问题,从"教学理念的国际化、教学内容的国际化、教学团队的国际化、教学方法的国际化"等方面进行创新教学实践,取得了一系列成果,有效地提升了学生的科研水平,对于创新型人才的培养起到了积极的推动作用.
Keyword ：
国际化视野 国际化视野 学生为中心 学生为中心 有机结构分析 有机结构分析 研究生教学 研究生教学
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| GB/T 7714 | 袁耀锋 , 叶克印 , 徐春发 et al. 在研究生课程的教学中注重国际视野的培养 [J]. | 大学化学 , 2024 , 39 (6) : 145-150 . |
| MLA | 袁耀锋 et al. "在研究生课程的教学中注重国际视野的培养" . | 大学化学 39 . 6 (2024) : 145-150 . |
| APA | 袁耀锋 , 叶克印 , 徐春发 , 晏宏 , 李远明 . 在研究生课程的教学中注重国际视野的培养 . | 大学化学 , 2024 , 39 (6) , 145-150 . |
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Electrocatalytic semi-hydrogenation of acetylene to ethylene has recently attracted attention as a process for removing acetylene from ethylene-rich gas streams due to its mild conditions and energy-saving advantages. However, developing catalysts with low cost and high selectivity for acetylene semi-hydrogenation remains a huge challenge. Here, we investigated the effect of hydroxyl group modification on the acetylene semi- hydrogenation selectivity of poly(heptazine imide) (PHI) supported metal single atom catalyst under alkaline conditions by density functional theory calculations. The results show that hydroxyl group as ligand not only increases the steric resistance of acetylene adsorption, but also acts as electron-withdrawing group to delocalize the electrons of metal atoms, weaken the interaction with acetylene and subsequent intermediates, and make the adsorption moderate, which is beneficial to the desorption of ethylene and avoid over-hydrogenation. The NiOH/PHI and Fe-2OH/PHI are capable of achieving the selective hydrogenation of acetylene to ethylene and have good thermodynamic stability, which can be used as ideal catalysts for the electrocatalytic semi- hydrogenation of acetylene to selectively generate ethylene. This study provides theoretical guidance for the rational design of electrocatalysts for the selective semi-hydrogenation of acetylene.
Keyword ：
Acetylene semi-hydrogenation Acetylene semi-hydrogenation Density functional theory calculations Density functional theory calculations Hydroxyl group Hydroxyl group Metal single atom Metal single atom Poly(heptazine imide) Poly(heptazine imide)
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| GB/T 7714 | Chen, Xiaoxiao , Li, Yi , Yuan, Yaofeng et al. Hydroxyl group modification improves the selectivity of metal single atom on poly(heptazine imide) for electrocatalytic acetylene semi-hydrogenation [J]. | APPLIED SURFACE SCIENCE , 2024 , 678 . |
| MLA | Chen, Xiaoxiao et al. "Hydroxyl group modification improves the selectivity of metal single atom on poly(heptazine imide) for electrocatalytic acetylene semi-hydrogenation" . | APPLIED SURFACE SCIENCE 678 (2024) . |
| APA | Chen, Xiaoxiao , Li, Yi , Yuan, Yaofeng , Lin, Wei . Hydroxyl group modification improves the selectivity of metal single atom on poly(heptazine imide) for electrocatalytic acetylene semi-hydrogenation . | APPLIED SURFACE SCIENCE , 2024 , 678 . |
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芳香亲核取代反应被有机化学家广泛地用于有机化合物的合成，是最重要的合成反应之一。教材中对于该反应机理的介绍为分步过程，但是随着研究的深入，通过协同过程的芳香亲核取代反应已经被广泛证实。本文简要回顾了分步进行的芳香亲核取代反应，重点介绍了协同芳香亲核取代反应的几个实例，阐述了反应设计对机理研究的重要性。通过将科研成果融入教学过程，有助于进一步加深对芳香亲核取代反应的理解。
Keyword ：
分步 分步 协同 协同 反应机理 反应机理 芳香亲核取代反应 芳香亲核取代反应
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| GB/T 7714 | 林文涛 , 王文峰 , 袁耀锋 et al. 协同芳香亲核取代反应 [J]. | 大学化学 , 2024 , 39 (06) : 226-230 . |
| MLA | 林文涛 et al. "协同芳香亲核取代反应" . | 大学化学 39 . 06 (2024) : 226-230 . |
| APA | 林文涛 , 王文峰 , 袁耀锋 , 徐春发 . 协同芳香亲核取代反应 . | 大学化学 , 2024 , 39 (06) , 226-230 . |
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Abstract ：
介绍了一个综合化学实验，涉及二茂铁苯基衍生物的合成、光物理和电化学性质的表征。该实验难度适中，综合运用了多种表征方法和测试手段，将大学基础化学理论、基本实验技能与金属有机领域的学术研究相结合。采用逆合成分析法设计了“一锅法”水相合成路线，旨在帮助学生树立绿色化学的概念以及培养可持续发展的思想。实验运用了紫外-可见吸收光谱和电化学方法对目标化合物的光物理和电化学性质进行研究，并结合量化计算手段详细比较了给电子基团和吸电子基团对分子电荷分布带来的影响。通过以科研反哺教学的模式，本实验不仅使学生掌握了基本的科研训练，而且培养了他们的综合实验素质。
Keyword ：
二茂铁苯基衍生物 二茂铁苯基衍生物 光物理 光物理 水相合成 水相合成 电化学 电化学 综合化学实验 综合化学实验 量化计算 量化计算
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| GB/T 7714 | 鄢剑锋 , 肖雅婷 , 左鑫 et al. 二茂铁苯基衍生物的综合化学实验设计 [J]. | 大学化学 , 2024 , 39 (04) : 329-337 . |
| MLA | 鄢剑锋 et al. "二茂铁苯基衍生物的综合化学实验设计" . | 大学化学 39 . 04 (2024) : 329-337 . |
| APA | 鄢剑锋 , 肖雅婷 , 左鑫 , 林彩霞 , 袁耀锋 . 二茂铁苯基衍生物的综合化学实验设计 . | 大学化学 , 2024 , 39 (04) , 329-337 . |
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The synthesis, structure, and size-dependent properties of ferrocene-embedded conjugated macrocycles are described. The one-pot, two-component "shotgun" synthesis greatly expands the structural diversity and functionality of nanohoops. These eta 5-type coordination metal-nanohoops exhibit intriguing properties, including reversible redox behavior and collisional quenching with fullerenes. Notably, the addition of oxidants enhances their fluorescence intensity, while fullerenes quench it. Detailed theoretical and experimental studies reveal that fine-tuning the nanohoop size significantly influences not only the molecular conformation but also its electronic structure and photophysical properties. Ferrocene-based conjugated macrocycles were efficiently synthesized by a "shotgun" approach. The fluorescence intensity of the macrocycles can be modulated in two intriguing ways: enhancement by adding an oxidant and quenching by adding fullerenes.
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| GB/T 7714 | Zhu, Lingyun , Xu, Jingdong , Lan, Bin et al. Ferrocene-based conjugated macrocycles: shotgun synthesis, size-dependent properties and tunable fluorescence intensity [J]. | ORGANIC CHEMISTRY FRONTIERS , 2024 , 11 (18) : 5130-5137 . |
| MLA | Zhu, Lingyun et al. "Ferrocene-based conjugated macrocycles: shotgun synthesis, size-dependent properties and tunable fluorescence intensity" . | ORGANIC CHEMISTRY FRONTIERS 11 . 18 (2024) : 5130-5137 . |
| APA | Zhu, Lingyun , Xu, Jingdong , Lan, Bin , Chen, Xinyu , Kono, Hideya , Xu, Hui et al. Ferrocene-based conjugated macrocycles: shotgun synthesis, size-dependent properties and tunable fluorescence intensity . | ORGANIC CHEMISTRY FRONTIERS , 2024 , 11 (18) , 5130-5137 . |
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