IF 10.3 4区化学

结构化学 Pub Date : 2025-11-01 Epub Date: 2025-09-04 DOI: 10.1016/j.cjsc.2025.100711

Xueyu Man , Guochao Li , Minghui Zhu , Shanhe Li , Gang Xu , Zhenlei Zhang , Hong Liang , Feng Yang

{"title":"Development of a theranostic tri-nuclear gadolinium(III) complex based on apoferritin for multitarget therapy of orthotopic glioma","authors":"Xueyu Man , Guochao Li , Minghui Zhu , Shanhe Li , Gang Xu , Zhenlei Zhang , Hong Liang , Feng Yang","doi":"10.1016/j.cjsc.2025.100711","DOIUrl":"10.1016/j.cjsc.2025.100711","url":null,"abstract":"<div><div>To effectively penetrate the blood-brain barrier (BBB) and integrate magnetic resonance imaging (MRI) diagnosis and multitarget therapy for orthotopic glioma, we proposed to develop a multinuclear gadolinium (Gd) complex based on apoferritin (AFt). To this end, we rationally designed and synthesized a trinuclear Gd(III) complex (Gd3) with strong T1-weighted MRI performance and remarkable cytotoxicity against glioma cells in vitro. Subsequently, we constructed an AFt-Gd3 nanoparticle (NP) delivery system. AFt-Gd3 NPs not only penetrate BBB but also provide significant T1-weighted MRI contrast for orthotopic glioma while effectively inhibiting glioma growth with minimal side effects in vivo. Furthermore, we elucidate the mechanism by which AFt-Gd3 NPs inhibit glioma growth: inducing apoptosis through chemodynamic therapy, blocking glutamine metabolism, and inhibiting energy metabolism.</div></div>","PeriodicalId":10151,"journal":{"name":"结构化学","volume":"44 11","pages":"Article 100711"},"PeriodicalIF":10.3,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145658843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ionic covalent organic frameworks enable laser-pulse-duration-dependent high third-order nonlinear optical responses 离子共价有机框架使激光脉冲持续时间依赖的高三阶非线性光学响应

IF 10.3 4区化学

结构化学 Pub Date : 2025-10-01 Epub Date: 2025-09-20 DOI: 10.1016/j.cjsc.2025.100733

Tianyang Dong , Xingyuan Wen , Xingzhi Wu , Ying Jiang , Chong Wang , Ruizhi Liu , Junyi Li , Wenfa Zhou , Yinglin Song , Xiaofeng Shi , Rui Wen , Chunru Wang , Li Jiang , Chunli Bai

{"title":"Ionic covalent organic frameworks enable laser-pulse-duration-dependent high third-order nonlinear optical responses","authors":"Tianyang Dong , Xingyuan Wen , Xingzhi Wu , Ying Jiang , Chong Wang , Ruizhi Liu , Junyi Li , Wenfa Zhou , Yinglin Song , Xiaofeng Shi , Rui Wen , Chunru Wang , Li Jiang , Chunli Bai","doi":"10.1016/j.cjsc.2025.100733","DOIUrl":"10.1016/j.cjsc.2025.100733","url":null,"abstract":"<div><div>In this paper, the third-order nonlinear optical (NLO) properties of covalent organic framework (COF) materials with conjugated amphoteric ion structure are studied for the first time. A highly ordered crystalline ultrathin films of the ionic COF material PySQ-iCOF was successfully fabricated using a solid-liquid interface method, meanwhile the building units extracted to be independent small molecule, 1-PySA, were synthesized for comparative studies. Compared to 1-PySA, PySQ-iCOF possesses not only a larger conjugated system but also exhibits enhanced polarization and charge transfer capabilities. The NLO properties of PySQ-iCOF and the small molecule 1-PySA were investigated using Z-scan technique at a wavelength of 532 nm, revealing the PySQ-iCOF thin film exhibits outstanding NLO performance. Specifically, it demonstrates saturable absorption under nanosecond (ns) pulse laser irradiation (β = −9.59 × 10−6 m/W), while exhibiting reverse saturable absorption under femtosecond (fs) pulse conditions (β = 6.91 × 10−8 m/W). Furthermore, the PySQ-iCOF film exhibits strong negative refractive nonlinearity, −6 × 10−12 m2/W for ns and −3.8 × 10−13 m2/W for fs, respectively. Transient absorption spectroscopy studies indicate that the pulse-width-dependent nonlinear absorption characteristics of the PySQ-iCOF film originate from the generation of triplet excited states. Both nonlinear absorption coefficient and nonlinear refractive index of the PySQ-iCOF film surpass those of most reported organic materials measured under comparable conditions, which provides huge potential in all-optical manipulating and switching at the nanoscale as outstanding NLO materials.</div></div>","PeriodicalId":10151,"journal":{"name":"结构化学","volume":"44 10","pages":"Article 100733"},"PeriodicalIF":10.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145398056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Regulating the coplanarity of π-conjugated units through hydrogen bonding in FAHC2O4 and FAH2C3N3S3 crystals 通过氢键调节FAHC2O4和FAH2C3N3S3晶体中π共轭单位的共平面性

IF 10.3 4区化学

结构化学 Pub Date : 2025-10-01 Epub Date: 2025-09-06 DOI: 10.1016/j.cjsc.2025.100714

Yi-Chang Yang , Rui-Xi Wang , Li-Ming Wu , Ling Chen

{"title":"Regulating the coplanarity of π-conjugated units through hydrogen bonding in FAHC2O4 and FAH2C3N3S3 crystals","authors":"Yi-Chang Yang , Rui-Xi Wang , Li-Ming Wu , Ling Chen","doi":"10.1016/j.cjsc.2025.100714","DOIUrl":"10.1016/j.cjsc.2025.100714","url":null,"abstract":"<div><div>The donor-acceptor hydrogen bonding strategy has been proposed to enforce coplanar packing of anisotropic π-conjugated units, thereby maximizing the material's achievable birefringence. Herein, employing this strategy, we successfully obtain two highly coplanar birefringent crystals, FAHC2O4 and FAH2C3N3S3 (FA+: CH5N2+, formamidinium). FAHC2O4 shows a wide bandgap (4.20 eV), while FAH2C3N3S3 exhibits a narrower bandgap (2.96 eV) due to the involvement of sulfur atom. Both crystals display notable birefringence in their respective material classes: 0.275@546 nm and 0.504@546 nm, respectively. X-ray crystallography and computational studies attribute the pronounced birefringence to their π-conjugated moieties and their near-coplanar configurations. Comparative analysis of FAHC2O4 and FAH2C3N3S3 further establishes that the hydrogen bond strength directly influences the molecular coplanarity degree. These findings provide new insights for applying the donor-acceptor hydrogen bonding strategy in the rational design of high-performance birefringent materials.</div></div>","PeriodicalId":10151,"journal":{"name":"结构化学","volume":"44 10","pages":"Article 100714"},"PeriodicalIF":10.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145398089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Frustrated Lewis pairs in CO2 photoreduction: A review on synergistic activation and charge separation CO2光还原中受挫刘易斯对：协同活化和电荷分离的研究进展

IF 10.3 4区化学

结构化学 Pub Date : 2025-10-01 Epub Date: 2025-09-17 DOI: 10.1016/j.cjsc.2025.100728

Huarui Han , Yangrui Xu , Yu Cheng , Liguang Tang , Jie Jin , Xinlin Liu , Changchang Ma , Ziyang Lu

{"title":"Frustrated Lewis pairs in CO2 photoreduction: A review on synergistic activation and charge separation","authors":"Huarui Han , Yangrui Xu , Yu Cheng , Liguang Tang , Jie Jin , Xinlin Liu , Changchang Ma , Ziyang Lu","doi":"10.1016/j.cjsc.2025.100728","DOIUrl":"10.1016/j.cjsc.2025.100728","url":null,"abstract":"<div><div>Photocatalytic CO2 reduction is a promising route toward carbon neutrality, yet its practical application is hindered by the high activation energy barrier of CO2, rapid recombination of photo-generated electrons, and poor product selectivity of traditional catalysts. Frustrated Lewis pairs (FLPs), which feature spatially separated Lewis acid and base sites, have recently emerged as a novel strategy to overcome these limitations. This review systematically examines the progress in FLPs-based photocatalytic systems. We focus on the construction strategies for FLPs active sites, the optimization of charge carrier dynamics, and the synergistic electron transfer mechanisms with photoactive components. Central theme is the elucidation of microscopic mechanisms governing CO2 activation, key intermediate conversion, and the efficient utilization of photogenerated electrons. By synthesizing current knowledge and outlining future prospects, this review aims to provide a theoretical framework that guides the rational design of highly active and selective catalysts for solar-driven CO2 reduction.</div></div>","PeriodicalId":10151,"journal":{"name":"结构化学","volume":"44 10","pages":"Article 100728"},"PeriodicalIF":10.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145398060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Achieving the birefringence-bandgap trade-off: Hydrogen-bond engineered biuret-cyanurate 实现双折射带隙权衡：氢键工程二脲-氰尿酸盐

IF 10.3 4区化学

结构化学 Pub Date : 2025-10-01 Epub Date: 2025-07-29 DOI: 10.1016/j.cjsc.2025.100695

Ziqi Chen , Miriding Mutailipu

{"title":"Achieving the birefringence-bandgap trade-off: Hydrogen-bond engineered biuret-cyanurate","authors":"Ziqi Chen , Miriding Mutailipu","doi":"10.1016/j.cjsc.2025.100695","DOIUrl":"10.1016/j.cjsc.2025.100695","url":null,"abstract":"<div><div>Birefringent materials play a crucial role in light polarization, with important applications in fiber-optic communications. However, developing such materials for the solar-blind region and shorter wavelengths remains challenging due to the inherent trade-off between birefringence and bandgap. In this work, we introduce a strategic assembly of cyanuric rings with biuret units—the latter identified for the first time as a birefringence-active motif—resulting in two new compounds: [H5C2N3O2][H3C3N3O3] (1) and [H5C2N3O2][H3C3N3O3]·xH2O (x ≈ 0.43) (2). Through hydrogen bonding-driven structural optimization, compound 2 achieves a 50% increase in birefringence (Δn = 0.403 @ 546 nm) compared to 1, while retaining a short cutoff edge of 208 nm. This advancement demonstrates that hydrogen-bond-guided structural design, combined with novel functional units, can overcome the traditional birefringence-bandgap conflict, opening new possibilities for short-wavelength birefringent materials with strong optical anisotropy.</div></div>","PeriodicalId":10151,"journal":{"name":"结构化学","volume":"44 10","pages":"Article 100695"},"PeriodicalIF":10.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145398093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Construction of metal cluster-based materials directed by a bifunctional pyridyl tripodal alcohol ligand according to hard and soft acid-base theory 根据硬、软酸碱理论，以双功能吡啶基三足醇配体为导向构建金属簇基材料

IF 10.3 4区化学

结构化学 Pub Date : 2025-10-01 Epub Date: 2025-08-26 DOI: 10.1016/j.cjsc.2025.100702

Yan-Jia Lin, Qing-Xin Zeng, Xiao-Min Shen, Shou-Tian Zheng, Xin-Xiong Li

引用次数: 0

Atomically dispersed cobalt in MFI zeolite framework for sustainable propane dehydrogenation 原子分散钴在MFI分子筛框架丙烷可持续脱氢

IF 10.3 4区化学

结构化学 Pub Date : 2025-10-01 Epub Date: 2025-07-28 DOI: 10.1016/j.cjsc.2025.100683

Xiang Fu, Jun Yu, Weili Dai

引用次数: 0

Order-by-order control over the nonlinear optical properties of atomically precise nanoclusters 原子精密纳米团簇非线性光学性质的逐级控制

IF 10.3 4区化学

结构化学 Pub Date : 2025-10-01 Epub Date: 2025-09-20 DOI: 10.1016/j.cjsc.2025.100735

Ying Xu , Yan Pu , Qiong Zhang, Xi Kang, Manzhou Zhu

{"title":"Order-by-order control over the nonlinear optical properties of atomically precise nanoclusters","authors":"Ying Xu , Yan Pu , Qiong Zhang, Xi Kang, Manzhou Zhu","doi":"10.1016/j.cjsc.2025.100735","DOIUrl":"10.1016/j.cjsc.2025.100735","url":null,"abstract":"<div><div>It remains highly challenging to achieve the high-order nonlinear optical (NLO) properties of atomically precise metal nanoclusters via template-maintained manipulation. Here, based on the M1Ag24(SR)18 (M = Ag/Au/Pt/Pd; SR = 2,4-dimethylthiophenol) cluster template, we demonstrated that the innermost kernel alloying rendered these nanoclusters highly controllable towards the nonlinear optics. The Pd-alloyed Pd1Ag24(SR)18 only displayed single-photon-excited fluorescence, while the homo-silver Ag25(SR)18 nanocluster generated the two-photon-excited fluorescence characterization. The Au- and Pt-doped M1Ag24(SR)18 nanoclusters showed high-order three- and four-photon-excited fluorescence, respectively, demonstrating that the order-by-order control over the nonlinear optics of nanoclusters has been accomplished. Moreover, Pt1Ag24(SR)18 with high-order NLO characterization exhibited the best optical limiting performance under 1000 nm excitation, in agreement with its most prominent NLO property. Overall, this work presents an intriguing cluster template that enables successive order control over the nonlinear optics of atomically precise metal nanoclusters, hopefully paving the way for developing cluster-based nanomaterials with customized optical characterizations.</div></div>","PeriodicalId":10151,"journal":{"name":"结构化学","volume":"44 10","pages":"Article 100735"},"PeriodicalIF":10.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145398057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Localized acidic microenvironment by Brønsted acid oxides eliminates ultrapure water requirement in PEM electrolysers Brønsted酸性氧化物的局部酸性微环境消除了PEM电解槽对超纯水的需求

IF 10.3 4区化学

结构化学 Pub Date : 2025-10-01 Epub Date: 2025-07-25 DOI: 10.1016/j.cjsc.2025.100680

Wentao Xu, Fuqin Zheng, Wei Chen

引用次数: 0

Ligand conformational adaptability modulated self-assembly of Solomon links (412) and trefoil knots (31) 配体构象适应性调节所罗门链（412）和三叶结（31）的自组装

IF 10.3 4区化学

结构化学 Pub Date : 2025-10-01 Epub Date: 2025-09-08 DOI: 10.1016/j.cjsc.2025.100712

Xing-Cheng Hu , Qiu-Shui Mu , Shu-Jin Bao , Yan Zou , Xin-Yu Wang , Guo-Xin Jin

{"title":"Ligand conformational adaptability modulated self-assembly of Solomon links (412) and trefoil knots (31)","authors":"Xing-Cheng Hu , Qiu-Shui Mu , Shu-Jin Bao , Yan Zou , Xin-Yu Wang , Guo-Xin Jin","doi":"10.1016/j.cjsc.2025.100712","DOIUrl":"10.1016/j.cjsc.2025.100712","url":null,"abstract":"<div><div>Mechanically interlocked molecules (MIMs) have unique properties with broad applications, yet constructing both knotted and linked topologies from the same ligand remains challenging due to their distinct geometric demands. To address this, we design and synthesize a conformationally adaptive ligand 4,7-bis(3-(pyridin-4-yl)phenyl) benzo[c][1,2,5]thiadiazole (L1) with a tunable torsional angle θ of N1–C1–C2–N2 ranging from 7.5° to 108.9°. Utilizing coordination-driven self-assembly at ambient temperature, L1 selectively assembles with binuclear half-sandwich units Rh–B1, Rh–B2, Rh–B3, and Rh–B4 featuring Cp∗RhIII (Cp∗ = η5-pentamethylcyclopentadienyl) into distinct topologies: Solomon links Rh-1, trefoil knots Rh-2, molecular tweezers Rh-3, and Rh-4, respectively. Crucially, the self-adaptability of ligand L1 directs topology formation through programming different combination of noncovalent interactions (π-π stacking, CH⋯π interaction, and lone pair-π interaction), thus navigating divergent assembly pathways by conformational switching, as evidenced by X-ray crystallography analysis, independent gradient model (IGM) analysis, detailed nuclear magnetic resonance (NMR) spectroscopy and electrospray ionization time-of-flight/mass spectrometry (ESI-TOF/MS). This strategy can also be extended to construct Cp∗IrIII analogs (Solomon links Ir-1, trefoil knots Ir-2, molecular tweezers Ir-3 and Ir-4), demonstrating metal-independent control and achieving intricate topologies in a high yield.</div></div>","PeriodicalId":10151,"journal":{"name":"结构化学","volume":"44 10","pages":"Article 100712"},"PeriodicalIF":10.3,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145398055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

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