Nature chemistry最新文献_第3页

Secret action of gastric acid controlling drug 胃酸控制药物的秘密作用

IF 19.2 1区化学

Nature chemistry Pub Date : 2025-04-01 DOI: 10.1038/s41557-025-01788-x

Linghao Kong, Chu Wang

引用次数: 0

Recyclable plastics from a manganese catalyst 锰催化剂制成的可回收塑料

IF 19.2 1区化学

Nature chemistry Pub Date : 2025-03-31 DOI: 10.1038/s41557-025-01785-0

Georgina L. Gregory

引用次数: 0

Secondary nucleation as a strategy towards hierarchically organized mesoscale topologies in supramolecular polymerization 在超分子聚合中，二级成核作为分层组织的中尺度拓扑策略

IF 19.2 1区化学

Nature chemistry Pub Date : 2025-03-31 DOI: 10.1038/s41557-025-01764-5

Sougata Datta, Hiroki Itabashi, Takuho Saito, Shiki Yagai

{"title":"Secondary nucleation as a strategy towards hierarchically organized mesoscale topologies in supramolecular polymerization","authors":"Sougata Datta, Hiroki Itabashi, Takuho Saito, Shiki Yagai","doi":"10.1038/s41557-025-01764-5","DOIUrl":"10.1038/s41557-025-01764-5","url":null,"abstract":"Developing new generic methodologies for organizing molecules into nano- to mesoscale structures of precise shapes and sizes is a research topic at the forefront of modern chemistry. Creating hierarchical molecular assembly, especially at the mesoscale, is important to realize functions reminiscent of those manifested by biomolecular assemblies in the mesoscopic regime. However, this is challenging due to the difficulty in maintaining stringent controllability over the organization of molecules at higher hierarchical levels, wherein weak non-directional intermolecular interactions rather than strong directional interactions typically play a predominant role. Recent studies have revealed that secondary nucleation, often experienced by one-dimensional assemblies such as supramolecular polymers that grow with spontaneous nucleation, is effective in the hierarchical construction of higher-order structures. Here we illustrate how secondary nucleation can be combined with the well-established precision synthesis of supramolecular polymers to realize precise control over hierarchical structures in the mesoscopic regime. We present a roadmap for creating hierarchical supramolecular polymers by exploiting secondary nucleation–elongation processes and discuss future prospects for the field. Mastering the synthesis of hierarchical molecular assemblies at the mesoscale—mimicking the precision of biomolecular assembly—has been challenging due to the lack of well-defined methodologies for controlling non-covalent interactions at multiple levels. In this Review, secondary nucleation is presented as a promising strategy for constructing mesoscale hierarchical structures.","PeriodicalId":18909,"journal":{"name":"Nature chemistry","volume":"17 4","pages":"477-492"},"PeriodicalIF":19.2,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143736764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Publisher Correction: High-pressure pump–probe experiments reveal the mechanism of excited-state proton-coupled electron transfer and a shift from stepwise to concerted pathways 出版者更正：高压泵-探针实验揭示了激发态质子耦合电子转移的机制和从阶梯到协调途径的转变

IF 21.8 1区化学

Nature chemistry Pub Date : 2025-03-28 DOI: 10.1038/s41557-025-01812-0

Daniel Langford, Robin Rohr, Stefan Bauroth, Achim Zahl, Alicja Franke, Ivana Ivanović-Burmazović, Dirk M. Guldi

引用次数: 0

Bilayer covalent organic frameworks take a twist 双层共价有机框架发生了变化

IF 19.2 1区化学

Nature chemistry Pub Date : 2025-03-28 DOI: 10.1038/s41557-025-01782-3

Cheng-Hao Liu, Dmytro F. Perepichka

引用次数: 0

Oxidation of interfacial cobalt controls the pH dependence of the oxygen evolution reaction 界面钴的氧化控制了析氧反应的pH依赖性

IF 21.8 1区化学

Nature chemistry Pub Date : 2025-03-28 DOI: 10.1038/s41557-025-01784-1

Jinzhen Huang, Adam H. Clark, Natasha Hales, Kenneth Crossley, Julie Guehl, Radim Skoupy, Thomas J. Schmidt, Emiliana Fabbri

{"title":"Oxidation of interfacial cobalt controls the pH dependence of the oxygen evolution reaction","authors":"Jinzhen Huang, Adam H. Clark, Natasha Hales, Kenneth Crossley, Julie Guehl, Radim Skoupy, Thomas J. Schmidt, Emiliana Fabbri","doi":"10.1038/s41557-025-01784-1","DOIUrl":"https://doi.org/10.1038/s41557-025-01784-1","url":null,"abstract":"<p>Transition metal oxides often undergo dynamic surface reconstruction under oxygen evolution reaction conditions to form the active state, which differs in response to the electrolyte pH. The resulting pH dependency of catalytic activity is commonly observed but poorly understood. Herein we track Co oxidation state changes at different pH-directed (hydr)oxide/electrolyte interfaces using operando X-ray absorption spectroscopy characterizations. Combined with in situ electrochemical analyses, we establish correlations between Co redox dynamics, the flat band potential and Co oxidation state changes to explain the pH dependency of the oxygen evolution activity. Alkaline environments provide a low flat band potential that yields a low-potential Co redox transformation, which favours surface reconstruction. Neutral and acidic environments afford an anodic shift of the Co redox transformation that increases the catalytic overpotential. The larger overpotential in neutral environments is attributable to poor Co atom polarizability and slow Co oxidation state changes. These findings reveal that interfacial Co oxidation state changes directly determine the pH dependency of the oxygen evolution reaction activity.</p><figure></figure>","PeriodicalId":18909,"journal":{"name":"Nature chemistry","volume":"13 1","pages":""},"PeriodicalIF":21.8,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143723171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Noncovalent interactions enable optical initialization of spin-based quantum states 非共价相互作用使自旋量子态的光学初始化成为可能

IF 19.2 1区化学

Nature chemistry Pub Date : 2025-03-28 DOI: 10.1038/s41557-025-01786-z

Subrata Ghosh, Natia L. Frank

引用次数: 0

Checking out metal cluster chemistry from living libraries 从现存的图书馆中查看金属簇化学

IF 19.2 1区化学

Nature chemistry Pub Date : 2025-03-28 DOI: 10.1038/s41557-025-01787-y

Takane Imaoka, Kimihisa Yamamoto

引用次数: 0

Solid oxide electrolysis cell for the super-dry reforming of methane 甲烷超干重整用固体氧化物电解池

IF 21.8 1区化学

Nature chemistry Pub Date : 2025-03-27 DOI: 10.1038/s41557-025-01795-y

引用次数: 0

Unravelling non-adiabatic pathways in the mutual neutralization of hydronium and hydroxide 揭开水合氢离子和氢氧根相互中和的非绝热途径

IF 19.2 1区化学

Nature chemistry Pub Date : 2025-03-25 DOI: 10.1038/s41557-025-01771-6

Alon Bogot, Mathias Poline, MingChao Ji, Arnaud Dochain, Stefan Rosén, Henning Zettergren, Henning T. Schmidt, Richard D. Thomas, Daniel Strasser

{"title":"Unravelling non-adiabatic pathways in the mutual neutralization of hydronium and hydroxide","authors":"Alon Bogot, Mathias Poline, MingChao Ji, Arnaud Dochain, Stefan Rosén, Henning Zettergren, Henning T. Schmidt, Richard D. Thomas, Daniel Strasser","doi":"10.1038/s41557-025-01771-6","DOIUrl":"10.1038/s41557-025-01771-6","url":null,"abstract":"The mutual neutralization of hydronium and hydroxide ions is a fundamental chemical reaction. Yet, there is very limited direct experimental evidence about its intrinsically non-adiabatic mechanism. Chemistry textbooks describe the products of mutual neutralization in bulk water as two water molecules; however, this reaction has been suggested as a possible mechanism for the recently reported spontaneous formation of OH radicals at the surface of water microdroplets. Here, following three-dimensional-imaging of the coincident neutral products of reactions of isolated D3O+ and OD−, we can reveal the non-adiabatic pathways for OD radical formation. Two competing pathways lead to distinct D2O + OD + D and 2OD + D2 product channels, while the proton-transfer mechanism is substantially suppressed due to a kinetic isotope effect. Analysis of the three-body momentum correlations revealed that the D2O + OD + D channel is formed by electron transfer at a short distance of ~4 Å with the formation of the intermediate unstable neutral D3O ground state, while 2OD + D2 products are obtained following electron transfer at a distance of ~10 Å via an excited state of the neutral D3O. The mutual neutralization of hydronium and hydroxide ions is a reaction of fundamental interest that has recently been implicated in the generation of high concentrations of hydroxyl radicals at the surface of water microdroplets. Using three-dimensional imaging of the coincident neutral products of the reaction of D3O+ and OD−, two competing pathways for OH radical formation have now been experimentally observed.","PeriodicalId":18909,"journal":{"name":"Nature chemistry","volume":"17 4","pages":"541-546"},"PeriodicalIF":19.2,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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