在研究生基础课“化学反应动力学”教学中，秉持“以学生的学习和发展为中心”的教育理念，将课程内容与课程思政和学科前沿紧密融合，并交替采用问题驱动学习(PBL)和基于研究学习(RBL)的教学模式，带动研究生发挥学习主体的能动性，促进夯实基础知识，形成科学的理性思维及创新能力，提升综合分析-解决问题能力，为研究生后续取得科研创新成果打下坚实基础。

A dual-targeting melanin nanoparticle (MNP-TPP-HA) was constructed by grafting the carboxyl groups of hyaluronic acid (HA) and (4-carboxybutyl) triphenylphosphonium bromide (TPP) onto the surface of polyethylene glycol-amino (PEG-NH₂) modified MNP based on 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC) and N-hydroxy succinimide (NHS) reaction, endowing melanin with the ability of dual active targeting. The fluorescence imaging of in vitro three-dimensional (3D) tumor models and in vivo photoacoustic imaging (PAI) all reveal the excellent target penetration ability of MNP-TPP-HA.

A mononuclear Co^Ⅱ complex, [Co(H₂dapsc)(H₂O)Cl]Cl·2H₂O (1), with a pentagonal bipyramidal configuration was obtained by reflux reaction of CoCl₂·6H₂O and 2, 6-diacetylpyridine-bis(semicarbazone) (H₂dapsc) in a mixed solvent of water and ethanol. The neutral ligand H₂dapsc molecule provides five coordination atoms to form the equatorial plane of 1, while a water molecule and a Cl^- ion occupy their axial positions. At the same time, the solid structure contains a valence counteranion Cl^- ion and two lattice water molecules. The study of DC magnetic susceptibility indicates that complex 1 has strong magnetic anisotropy. The AC magnetic properties show the existence of slow magnetic relaxation behavior, which is dominated by both direct and Raman processes. The energy barrier for magnetization reversal was 55.55 K. Based on theoretical calculations, it can be concluded that the main reason for the slow magnetic relaxation behavior is the rhombic anisotropy of the pentagonal bipyramidal structure. The calculated D and E values were 45.68 and-0.32 cm^-1.

碳捕集技术是实现“双碳”目标的重要途径。高温工业源CO₂的捕集更宜使用钙基吸收剂。本文立足“双碳”背景，将碳捕集前沿技术融入仪器分析实验课程，开发了蛋壳源CaO的制备、表征及其碳捕集性能的设计性综合实验。选择高钙废弃物鸡蛋壳为原料，采用醋酸处理得到醋酸钙，再经高温煅烧制备了具有较好碳捕集性能的CaO;利用EDTA配位滴定、扫描电子显微镜、X射线衍射、红外光谱、拉曼光谱和热重分析等多种分析手段，测试了CaO的纯度、形貌、结构及其对CO₂的捕集性能。本实验采用项目式教学方式，引导学生自行设计实验方案并进行实践和总结，不仅锻炼了学生综合运用专业知识解决实际问题的能力，而且培养了学生的科研素养和团队合作精神。

随着社会对化学专业人才安全素养的要求日益提高，各高校逐渐意识到化学实验室安全教育的重要性。但当前的化学安全教育普遍缺乏系统性，为了扭转这样的局面，吉林大学化学学院依托化学国家级实验教学示范中心为平台，基于OBE (Outcome-Based Education)教育理念，以硬件建设和知识载体为双支撑、采取“理论与实践相结合、课内课外相结合、虚拟与现实相结合”的三结合实施路径，构建化学安全实践育人体系，使学生安全意识、安全知识和应急能力螺旋式上升，全面提升学生的化学安全素养。

铬族元素的Cr₂、Mo₂、W₂基团具有相对稳定性，科学家对此做了实验验证和理论计算，试图找出原因。本文梳理了相关研究脉络及最新进展，从“它们的成键方式如何？”以及“可以怎样被进一步稳定？”两个问题出发，对铬族元素中的双原子基团六重键作用进行了分析、归纳和讨论。作者认为，Cr₂、Mo₂、W₂基团的不稳定性来源于两原子间密集电子的斥力；因此，各种稳定该基团的方法本质上都是从减小电子密度、解决电子斥力入手。

介绍了南京大学在“双减”政策背景下与中小学深度合作开展科普工作的具体做法。科普基地确立了“弘扬科学精神、科普活动与课内教育深度融合、以学生为中心”的原则，所有的科普教育活动都根据这些原则来设计。总结了在资源开放、师资供给、课程开发等方面的一些经验。

This study presents the synthesis of three dinuclear cobalt complexes based on three imine derivatives: bis-[4-(2-pyridylmethyleneamino)-phenyl]thioether (L₁), bis-[4-(2-pyridylmethyleneamino)-phenyl]ether (L₂), and bis-[4-(2-pyridylmethyleneamino)-phenyl]methane (L₃). Single-crystal X-ray diffraction analysis reveals that the complexes [Co₂(L₁)₃](ClO₄)₄·2CH₃CN (1), [Co₂(L₂)₃](ClO₄)₄·2CH₃OH (2), and [Co₂(L₃)₃](ClO₄)₄·2CH₃OH (3) all exhibit a dinuclear structure. Magnetic test results show that complex 3 exhibited irreversible SCO behavior induced by loss of solvent at 300 K, with the average Co—N bond length increasing from 0.213 9(3) to 0.215 3(3) nm. Meanwhile, the desolvated complex 3 exhibited paramagnetic behavior similar to that of complexes 1 and 2. Variable-temperature UV-Vis spectroscopic studies also indicate that complex 3 undergoes a solvent-loss-induced spin-state transition.

通过配体取代反应合成了2个双膦配体桥联的四铁配合物[Fe₄(CO)₁₀(μ-SCH₂CH (CH₃) S)₂(dppa)](1)和[Fe₄(CO)₁₀(μ-SCH₂CH (CH₃) S)₂(trans-dppv)](2)，其中dppa=双(二苯基膦)乙炔，trans-dppv=trans-1，2-双(二苯基膦)乙烯。配合物的结构经过元素分析、红外光谱、核磁共振氢谱、磷谱以及单晶X射线衍射等方法的表征。用循环伏安法研究了新配合物的电化学性质，结果表明它们均可以在乙腈溶液中催化醋酸中的质子还原产生氢气。其中配合物2的催化效率要明显优于配合物1。

Bovine serum albumin (BSA) and glycine (Gly) dual-ligand-modified copper nanoclusters (BSA-Gly CuNCs) with high fluorescence intensity were synthesized by a one-pot strategy. Based on the competitive fluorescence quenching and dynamic quenching effects of ornidazole (ONZ) on BSA-Gly CuNCs, a simple and sensitive detection method for ONZ was successfully developed. The experimental results demonstrate that the addition of the small molecule Gly can more effectively protect CuNCs, and thus enhance its fluorescence intensity and stability. The proposed assay allowed for the detection of ONZ in a linear range of 0.28 to 52.60 μmol·L^-1 and a detection limit of 0.069 μmol·L^-1. Compared with the single-ligand-modified CuNCs, dual-ligand-modified BSA-Gly CuNCs had higher fluorescence intensity, stability, and sensing ability and were successfully applied to evaluate ONZ in actual ONZ tablets.