Chemistry - A European Journal最新文献

Tetrylenes Are Able to Discern between Isomeric Structures of Unsaturated Osmium(IV) Polyhydrides.

IF 3.9 2区化学

Chemistry - A European Journal Pub Date : 2025-01-15 DOI: 10.1002/chem.202404629

Javier A Cabeza, Miguel A Esteruelas, Susana Izquierdo, Enrique Oñate

引用次数: 0

Synthesis and Reactivity of a Non-Heme μ-Oxodicobalt(IV) Complex.

IF 3.9 2区化学

Chemistry - A European Journal Pub Date : 2025-01-15 DOI: 10.1002/chem.202404536

Simarjeet Kaur, Kritika Keshari, Maxime Sauvan, Lucia Velasco, Pragya Arora, Aakash Santra, Asterios Charisiadis, Ashok D Ugale, Apparao Draksharapu, Dooshaye Moonshiram, Sayantan Paria

{"title":"Synthesis and Reactivity of a Non-Heme μ-Oxodicobalt(IV) Complex.","authors":"Simarjeet Kaur, Kritika Keshari, Maxime Sauvan, Lucia Velasco, Pragya Arora, Aakash Santra, Asterios Charisiadis, Ashok D Ugale, Apparao Draksharapu, Dooshaye Moonshiram, Sayantan Paria","doi":"10.1002/chem.202404536","DOIUrl":"https://doi.org/10.1002/chem.202404536","url":null,"abstract":"A mononuclear CoIII complex (1) of a bisamide-bisalkoxide donor ligand was synthesized and thoroughly characterized. The reaction of 1 with 0.5 equiv. of m-chloroperbenzoic acid (m-CPBA) in acetonitrile at -40 °C resulted in the formation of a μ-oxodicobalt(IV) complex (2), which was characterized by an array of spectroscopic techniques, including X-ray absorption spectroscopy which revealed a short Co-Ooxo distance of 1.67 Å. Reactivity studies of 2 towards oxidation/oxygenation of hydrocarbon C-H bond and triphenylphosphine or thioanisole derivatives have been examined. UV-vis spectroscopy studies showed the appearance of clear isosbestic points during the oxidation of substrates together with a neat transformation of 2 to 1. Detailed kinetic investigations established that 2 follows a Concerted Proton-Electron Transfer (CPET) mechanism for hydrocarbon oxidation and has a weak electrophilic character. Catalytic behavior of 1 was noted towards the oxygen atom transfer reactions. This study showcases the spectroscopic investigation and reactivity studies of a CoIV(μ-O)CoIV moiety. Although the FeIV analog of such a core has been described before, the study describes the first example with a CoIV center.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e202404536"},"PeriodicalIF":3.9,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142982068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Three dimensional CNTs interweaved layered MnTe nanoparticles as a new cathode for aqueous zinc ion battery.

IF 3.9 2区化学

Chemistry - A European Journal Pub Date : 2025-01-15 DOI: 10.1002/chem.202404600

Dai-Huo Liu, Mengqin Song, Fang Xu, Ao Wang, Chunyan Xu, Jialin Zheng, Cheng Yun, Beinuo Zhang, Zhenjiang Li, Yaozhi Liu, Pengyan Wang, Shifen Wang, Junpo Guo

引用次数: 0

Panchromatic Absorption of Unsymmetrical Donor-Acceptor Dyes Based on a Meta-conjugated 1,3,5-Heteroaryltriazine Core.

IF 3.9 2区化学

Chemistry - A European Journal Pub Date : 2025-01-15 DOI: 10.1002/chem.202403860

Jacob G Rothera, Hi Taing, Menandro Cruz, Anton Dmitrienko, V Nick Vukotic, Sean M Ryno, Chad M Risko, A Mohan Raj, William G Skene, S Holger Eichhorn

引用次数: 0

Controllable Self-Assembly Morphologies of PPV-Based Block Copolymers.

IF 3.9 2区化学

Chemistry - A European Journal Pub Date : 2025-01-15 DOI: 10.1002/chem.202404380

Liang Han, Feng He

{"title":"Controllable Self-Assembly Morphologies of PPV-Based Block Copolymers.","authors":"Liang Han, Feng He","doi":"10.1002/chem.202404380","DOIUrl":"https://doi.org/10.1002/chem.202404380","url":null,"abstract":"Poly(p-phenylenevinylene) (PPV) is a classic semiconducting π-conjugated polymers with outstanding optical and electronic properties, which shows important applications in the fields of optoelectronic, such as organic light-emitting diodes (OLEDs), organic solar cells (OSCs), and organic field-effect transistors (OFETs). In the working process of the device, the microstate of PPV decides its property. Therefore, it is significant to achieve ordered morphologies based on PPV at micro scale. Due to the long rigid backbone and large area of delocalized electron, PPV has a strong tendency towards ordered aggregation through intermolecular π-π interaction, and \"rod-coil\" type block copolymer (BCP) based on PPV with a corona chain to improve the solubility is always built for self-assembly in situ solution. However, obtaining regular PPV based micro-/nano-structures in a controllable and uniform form remains challenging. In this review, we summarize the progresses in constructing multi-dimensional regular self-assembly morphologies based on PPV BCPs and exploring the application potential of these delicate functional nanomaterials. The molecular design strategy and growth mechanism can be extended to regulate the aggregation state of functional semiconducting conjugated polymers, which is beneficial to improving their performance in application of microelectronics, optoelectronics, biology and so on.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e202404380"},"PeriodicalIF":3.9,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142982060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Tolane-Based Phosphino- and Arsino-Ruthenium Complexes in Three Different Oxidation States: Ru(I), Ru(II) and Ru(III).

IF 3.9 2区化学

Chemistry - A European Journal Pub Date : 2025-01-15 DOI: 10.1002/chem.202404546

Benjamin Rudin, Carolin A M Stein, Joachim Ballmann

{"title":"Tolane-Based Phosphino- and Arsino-Ruthenium Complexes in Three Different Oxidation States: Ru(I), Ru(II) and Ru(III).","authors":"Benjamin Rudin, Carolin A M Stein, Joachim Ballmann","doi":"10.1002/chem.202404546","DOIUrl":"https://doi.org/10.1002/chem.202404546","url":null,"abstract":"Targeting Ru(III) and Ru(I) η2-alkyne species, 2,2'-(iPr2E)2-substituted diphenylacetylenes (1-E, E = P, As) were em-ployed for the pre-paration of [ECCE]-coordinated ruthenium com-plexes. The re-actions between 1-E and cis-(MeCN)2(COD)RuCl2 led to the required Ru(II) starting materials cis-[ECCE]RuCl2(MeCN) (3-E). Upon oxi-dation of 3-E with PhICl2, the Ru(III) target com-plexes [ECCE]RuCl3 (7-E) were detectable for E = P and E = As, but only the arsa-deriva-tive 7-As was obtained in a pure form, namely via oxi-da-tion of cis-[AsCCAs]RuCl2(THT) (THT = tetrahydrothiophene). Upon re-duction of compounds 3-E, a hitherto unprecedented Ru(I) η2-alkyne complex, [PCCP]RuCl (9), was obtained for E = P. The former square planar Ru(I) complex (9) was characterized com-prehensively and examined in detail by means of DFT and CASSCF calculation. Upon treatment of 9 with TlPF6, a diamagnetic µ-Tl-bridged compound (10) with a nearly linear Ru-Tl-Ru array was formed and isolated in high yields. Careful analysis of the bonding situation suggested that the Ru-Tl-Ru moiety in 10 is best interpreted in terms of a 3c-4e- bond.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e202404546"},"PeriodicalIF":3.9,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142982107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

High-throughput Experimentation Enables the Development of a Nickel-catalyzed Cyanation Platform for (Hetero)aryl Halides.

IF 3.9 2区化学

Chemistry - A European Journal Pub Date : 2025-01-14 DOI: 10.1002/chem.202403795

Vincent Porte, Philipp Kollmus, Eloísa Serrano, Marco Santagostino

引用次数: 0

Photoinduced EDA Complex-Initiated Synthesis of Fluoroalkylated Isoquinolinonediones. 光诱导 EDA 复合物引发的氟烷基异喹啉酮类化合物的合成。

IF 3.9 2区化学

Chemistry - A European Journal Pub Date : 2025-01-14 Epub Date: 2024-11-20 DOI: 10.1002/chem.202403286

Lei Huang, Chaodong Wang, Zhi Chen, Qianxi Jin, Shengjie Song, Jiadi Zhou, Jianjun Li

引用次数: 0

Hybrid Strategies for Enhancing the Multifunctionality of Smart Dynamic Molecular Crystal Materials. 增强智能动态分子晶体材料多功能性的混合战略。

IF 3.9 2区化学

Chemistry - A European Journal Pub Date : 2025-01-14 Epub Date: 2024-12-10 DOI: 10.1002/chem.202403293

Haoqiang Qi, Wenbo Wu, Jiaxuan Zhu, Hongtu Zhao, Hui Yu, Xin Huang, Ting Wang, Na Wang, Hongxun Hao

{"title":"Hybrid Strategies for Enhancing the Multifunctionality of Smart Dynamic Molecular Crystal Materials.","authors":"Haoqiang Qi, Wenbo Wu, Jiaxuan Zhu, Hongtu Zhao, Hui Yu, Xin Huang, Ting Wang, Na Wang, Hongxun Hao","doi":"10.1002/chem.202403293","DOIUrl":"10.1002/chem.202403293","url":null,"abstract":"Dynamic molecular crystals are an emerging class of smart engineering materials that possess unique ability to convert external energy into mechanical motion. Moreover, they have being considered as strong candidates for dynamic elements in applications such as flexible electronic devices, artificial muscles, sensors, and soft robots. However, the inherent defects of molecular crystals like brittleness, short-life and fatigue, have significantly impeded their practical applications. Inspired by the concept of \"the whole is greater than the sum of its parts\" in the field of biology, building stimuli-response composites materials can be regarded as one of the ways to break through the current limitations of dynamic molecular crystals. Moreover, the hybrid materials can exhibit new functionalities that cannot be achieved by a single object. In this review, the focus was placed on the analysis and discussion of various hybrid strategies and options, as well as the functionalities of hybrid dynamic molecular crystal materials and the important practical applications of composite materials, with the introduction of photomechanical molecular crystals and flexible molecular crystals as a starting point. Moreover, the efficiency, limitations, and advantages of different hybrid methods were compared and discussed. Furthermore, the promising perspectives of smart dynamic molecular crystal materials were also discussed and the potential directions for future work were suggested.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e202403293"},"PeriodicalIF":3.9,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142737689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Insights into the Solution Processing of Non-van der Waals Boron Carbide. 对非范德华碳化硼溶液加工的见解。

IF 3.9 2区化学

Chemistry - A European Journal Pub Date : 2025-01-14 Epub Date: 2024-12-10 DOI: 10.1002/chem.202403328

Priyabrata Sahoo, Kenneth Lobo, Vijaya Kumar Gangaiah, Priyanka Sumbe, Mahendra A More, Dattatray J Late, Kiran Vankayala, H S S Ramakrishna Matte

{"title":"Insights into the Solution Processing of Non-van der Waals Boron Carbide.","authors":"Priyabrata Sahoo, Kenneth Lobo, Vijaya Kumar Gangaiah, Priyanka Sumbe, Mahendra A More, Dattatray J Late, Kiran Vankayala, H S S Ramakrishna Matte","doi":"10.1002/chem.202403328","DOIUrl":"10.1002/chem.202403328","url":null,"abstract":"Exfoliation of non-layered materials is crucial to unleash their enormous potential in wide range of applications. However, the presence of strong non-van der Waals interactions in all three dimensions makes exfoliation challenging. Boron carbide (B4C), known for its high hardness, holds great potential for diverse applications. In this work, B4C is exfoliated in 29 solvents to determine its Hansen solubility parameters (HSP) and understand the dispersion stability. The experimentally determined HSP values are 19.6, 15.3 and 15.1 MPa1/2 for dispersive interactions (δD), polar interactions (δP) and hydrogen bonding interactions (δH), respectively. Subsequently, in situ dispersion stability is analyzed qualitatively and quantitatively from the space-time resolved extinction profiles employing an analytical centrifuge. The sedimentation kinetics of B4C dispersions are analyzed using instability index, integral extinction and sedimentation velocity. B4C dispersions in solvents like ϵ-caprolactone, isopropyl alcohol, propylene carbonate and formamide exhibited excellent stability. Additionally, B4C nanosheets are utilized to investigate their field emission properties. These nanosheets exhibit a turn-on electric field of 3.35 V/μm at an emission current density of 1 μA cm-2, and it delivered a large emission current density of ~375 μA cm-2 at an applied electric field of 5.7 V/μm.","PeriodicalId":144,"journal":{"name":"Chemistry - A European Journal","volume":" ","pages":"e202403328"},"PeriodicalIF":3.9,"publicationDate":"2025-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142737693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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