Dalton Transactions最新文献

Construction of 2D zinc(II) MOFs with tricarboxylate and N-donor mixed ligands for multiresponsive luminescence sensor and CO2 adsorption 构建具有三羧酸盐和 N-供体混合配体的二维锌（II）MOFs，用于多反应发光传感器和二氧化碳吸附

IF 4 3区化学

Dalton Transactions Pub Date : 2024-09-27 DOI: 10.1039/d4dt01825g

Kenika Khotchasanthong, Kunlanit Chinchan, Kanokwan Kongpatpanich, Waraporn Pinyo, Filip Kielar, Winya Dungkeaw, Mongkol Sukwattanasinitt, Sakchai Laksee, Kittipong Chainok

{"title":"Construction of 2D zinc(II) MOFs with tricarboxylate and N-donor mixed ligands for multiresponsive luminescence sensor and CO2 adsorption","authors":"Kenika Khotchasanthong, Kunlanit Chinchan, Kanokwan Kongpatpanich, Waraporn Pinyo, Filip Kielar, Winya Dungkeaw, Mongkol Sukwattanasinitt, Sakchai Laksee, Kittipong Chainok","doi":"10.1039/d4dt01825g","DOIUrl":"https://doi.org/10.1039/d4dt01825g","url":null,"abstract":"The solvothermal reactions of ZnCl2·6H2O, benzene-1,3,5-tribenzoic acid (H3btb), and N-heterocyclic ancillary imidazole (Im) or aminopyrimidine (amp) ligands led to the creation of two-dimensional (2D) zinc(II) based metal-organic frameworks (MOFs), (Me2NH2)2[Zn2(btb)2(Im)2]·2DMF·3MeOH (1) and (Me2NH2)2[Zn2(btb)2(amp)]·H2O·2DMF·MeOH (2). The btb3− ligands in 1 and 2 form anionic 2D layered structure with a (63) honeycomb (hcb) topology by linking to Zn(II) centres through their carboxylate groups. The incorporation of N-heterocyclic auxiliary ligands Im and amp into the hcb nets resulted in the formation of a 2D hydrogen-bonded and covalently pillared bilayer structure featuring two-fold interpenetrating networks. Each of these networks consists of small channels that are occupied by Me2NH2 cations and solvent molecules. Both 1 and 2 emit blue luminescent emissions in the solid-state at room temperature and exhibit a great selectivity and sensitivity for the detection of acetone and multiple heavy metal ions including Hg2+, Cu2+, Fe2+, Pb2+, Cr3+, and Fe3+ ions. At 1 bar, activated 1 and 2 demonstrate moderate capacities for adsorbing CO2 at room temperature, with a preference for CO2 over N2. Notably, at higher pressures (up to 20 bar) their activated samples 1 and 2 show a temperature-dependent enhancement of CO2 uptake while retaining good stability.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142324907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Pb6Ba3Si2S8I10: A new thiohalide with a quasi-two-dimensional structure and wide band gap Pb6Ba3Si2S8I10：一种具有准二维结构和宽带隙的新型硫卤化物

IF 4 3区化学

Dalton Transactions Pub Date : 2024-09-27 DOI: 10.1039/d4dt02315c

Wang Zhao, Jiazheng Zhou, Linan Wang, Wenqi Jin, Yingying Kong, Yu Chu, Junjie Li

引用次数: 0

2,3-Bis(2-pyridyl)thieno[3,4-b]pyrazine and its ruthenium(II) complexes: a new bidentate bridging ligand for enhanced metal–metal communication 2,3-双(2-吡啶基)噻吩并[3,4-b]吡嗪及其钌(II)配合物：一种用于增强金属间通讯的新型双齿桥接配体

IF 4 3区化学

Dalton Transactions Pub Date : 2024-09-27 DOI: 10.1039/d4dt02495h

Kristine L. Konkol, Wyatt D. Wilcox, Seth C. Rasmussen

引用次数: 0

Aminophosphine PNH complexes of Mn(I), Fe(II), and Co(II) and evaluation of their activities in the transfer hydrogenation of nitriles 锰(I)、铁(II)和钴(II)的氨基膦 PNH 复合物及其在腈的转移加氢反应中的活性评估

IF 4 3区化学

Dalton Transactions Pub Date : 2024-09-27 DOI: 10.1039/d4dt02442g

Ainur Slamova, Ayazhan Bizhanova, Ofeliya Talimonyuk, Kristina Gudun, Samat Tussupbayev, Anton Dmitrienko, Aishabibi Kassymbek, Konstantin Lyssenko, Andrey Y. Khalimon

引用次数: 0

Design and performance study of a multiband metamaterial tunable thermal switching absorption device based on AlCuFe and VO2 基于 AlCuFe 和 VO2 的多波段超材料可调谐热开关吸收器件的设计与性能研究

IF 4 3区化学

Dalton Transactions Pub Date : 2024-09-27 DOI: 10.1039/d4dt01751j

Chenyu Gong, Wenxing Yang, Shubo Cheng, Zao Yi, Zhiqiang Hao, Qingdong Zeng

{"title":"Design and performance study of a multiband metamaterial tunable thermal switching absorption device based on AlCuFe and VO2","authors":"Chenyu Gong, Wenxing Yang, Shubo Cheng, Zao Yi, Zhiqiang Hao, Qingdong Zeng","doi":"10.1039/d4dt01751j","DOIUrl":"https://doi.org/10.1039/d4dt01751j","url":null,"abstract":"In this paper, we propose a multiband adjustable metamaterial absorption device based on a Dirac semimetal (BDS) AlCuFe and a thermally controlled phase-change material VO2. The absorption device has an axially symmetric structure, resulting in polarization-independent characteristics, and when VO2 is in a high-temperature metal state, ultra-high absorption rates and sensitives at frequencies of M1 = 2.89 THz, M2 = 7.53 THz, M3 = 7.97 THz, and M4 = 9.02 THz are achieved. Using a parameter inversion method, we calculated the impedance of the absorber, proving that it achieves impedance matching and produces perfect absorption in the resonance region. Additionally, we changed the physical and chemical parameters of the absorption device, demonstrating the device's excellent tunability and manufacturing tolerance. Furthermore, by lowering the temperature of VO2 to that of a low dielectric state, additional resonant peaks with ultra-high absorption rates at frequencies M5 = 5.62 THz, M6 = 7.16 THz, M7 = 7.64 THz, and M8 = 8.80 THz were obtained, broadening the absorption band of the device. Lastly, we investigated the detection sensitivity of the device by changing the external refractive index, resulting in a maximum sensitivity of 2229 GHz RIU−1. To sum up, the absorption device has great application potential in the fields of communication, sensing, temperature detection and photoelectric instruments.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142324943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Copper Complexation of Rosarin: Formation of a Bis-copper Rosarin and a Mono-copper Linear Tridipyrrin 玫瑰苷的铜络合：形成双铜玫瑰苷和单铜线性三吡咯啉

IF 4 3区化学

Dalton Transactions Pub Date : 2024-09-27 DOI: 10.1039/d4dt02161d

Xiaojuan Lv, Long Qian, Nikolay V. Tkachenko, Tao Zhang, Fengxian Qiu, Naoki Aratani, Takahisa Ikeue, Jianming Pan, Songlin Xue

引用次数: 0

Enhancing the single-molecule magnet performance of β-diketonate Dy(III) complexes by modulating the coordination microenvironment and magnetic interaction: from mononuclear to dinuclear structure 通过调节配位微环境和磁性相互作用增强β-二酮酸镝(III)配合物的单分子磁性能：从单核结构到双核结构

IF 4 3区化学

Dalton Transactions Pub Date : 2024-09-27 DOI: 10.1039/d4dt02179g

Yafu Wang, Zhaopeng Zeng, S. C. Luo, Yan Guo, Xiangyu Liu

{"title":"Enhancing the single-molecule magnet performance of β-diketonate Dy(III) complexes by modulating the coordination microenvironment and magnetic interaction: from mononuclear to dinuclear structure","authors":"Yafu Wang, Zhaopeng Zeng, S. C. Luo, Yan Guo, Xiangyu Liu","doi":"10.1039/d4dt02179g","DOIUrl":"https://doi.org/10.1039/d4dt02179g","url":null,"abstract":"Based on a β-diketonate ligand, a mononuclear Dy(III) complex, [Dy(dmpd)3(bpy)] (1) (dmpd = 4,4-dimethyl-1-phenylpentane-1,3-dione, bpy = 2,2'-dipyridyl), of [DyN2O6] type has been synthesized with a capping nitrogen-containing coligand. Then, a dual capping coligand 2,2′-bipyrimidine (bmp) is introduced to be a bridge to link two β-diketonate-Dy(III) motifs, leading to a new dinuclear Dy(III) complex, [Dy2(dmpd)6(bmp)] (2). Dy(III) centers in both complexes feature an N2O6 octacoordinated environment with approximate square-antiprism geometry (D4d). Without a dc field, SMM behaviour is absent in complex 1, but can be clearly observed in dinuclear 2 with a Ueff of 87.29 K. The significantly improved magnetism arising in 2 is mainly due to the modulation of the coordination environment around the Dy(III) ions, and the superexchange magnetic interactions inside the dinuclear units, thus allowing for the effective inhibition of the quantum tunneling of magnetization at low temperatures and promotion of the uniaxial magnetic anisotropy. For 1, a diamagnetic Y(III) analogue [Y(dmpd)3(bpy)] (3) and diluted sample 1@Y were constructed to further perform the dilution experiment, coupling with theoretical calculations further support that the synergetic contributions of intermolecular dipole-dipole interaction, intramolecular coupling and uniaxial magnetic anisotropy cause the enhancement of the dynamic magnetic relaxation.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142324942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Multifunctional Hyaluronic Acid Ligand-Assisted Construction of CD44-and Mitochondria-Targeted Self-Assembled Upconversion Nanoparticles for Enhanced Photodynamic Therapy 多功能透明质酸配体辅助构建 CD44 和线粒体靶向自组装上转换纳米粒子，用于增强光动力疗法

IF 4 3区化学

Dalton Transactions Pub Date : 2024-09-27 DOI: 10.1039/d4dt02399d

Ze Hao Liu, Xin Wang Mo, Wei Jiang, Changling Liu, Yue Yin, Hong Yu Yang, Yan Fu

{"title":"Multifunctional Hyaluronic Acid Ligand-Assisted Construction of CD44-and Mitochondria-Targeted Self-Assembled Upconversion Nanoparticles for Enhanced Photodynamic Therapy","authors":"Ze Hao Liu, Xin Wang Mo, Wei Jiang, Changling Liu, Yue Yin, Hong Yu Yang, Yan Fu","doi":"10.1039/d4dt02399d","DOIUrl":"https://doi.org/10.1039/d4dt02399d","url":null,"abstract":"Upconversion nanoparticles (UCNPs) have been used as a potential nanocarrier for photosensitizers (PSs), which have demonstrated a great deal of promise in achieving an effective photodynamic therapy (PDT) for deep-seated tumors. However, overcoming biological barriers to achieve mitochondria-targeted PDT remains a major challenge. Herein, CD44- and mitochondria-targeted photodynamic nanosystems were fabricated through the self-assembly of hyaluronic acid-conjugated-methoxy poly(ethylene glycol)-diethylenetriamine-grafted-(chlorine e-dihydrolipoic acid- (3-carboxypropyl) triphenylphosphine bromide) polymeric ligands (HA-c-mPEG-Deta-g-(Ce6-DHLA-TPP)) and NaErF4:Tm@NaYF4 core-shell UCNPs (termed as CMPNs). The CMPNs presented ideal physiological stability, a good drug loading capacity and an improved capacity in the generation of singlet oxygen (1O2) based on the FRET mechanism. Significantly, confocal images revealed that CMPNs not only facilitated cellular uptake through CD44-receptor-targeted endocytosis, subsequently enabling rapid evasion from endo-lysosomal sequestration, but also specifically targeted mitochondria, ultimately inducing a profound disruption of mitochondrial membrane potential, which triggered apoptosis upon laser irradiation, thereby significantly enhancing the therapeutic effect. Furthermore, in vitro antitumor experiments further confirmed the substantial enhancement in cancer cell killing efficiency achieved by treating with CMPNs upon near-infrared (NIR) laser irradiation. This innovative approach holds promise for the development of NIR-laser-activated photodynamic nanoagents specifically designed for mitochondria-targeted PDT, thus addressing limitations of the current PDT treatments.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142324935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Synthesis and Photocatalytic Activity of Cation-Doped Titanium Oxynitrides (Ti2.85−xMxO4N, M = Zn, Co, Cu) 阳离子掺杂氧化钛（Ti2.85-xMxO4N，M = Zn、Co、Cu）的合成与光催化活性

IF 4 3区化学

Dalton Transactions Pub Date : 2024-09-27 DOI: 10.1039/d4dt02378a

Qijing Gao, Wenyan Shi, Wenqian Chen

引用次数: 0

Novel Zn(II), Co(II) and Cu(II) diflunisalato complexes with neocuproine and their exceptional antiproliferative activity against cancer cell lines 新型 Zn(II)、Co(II) 和 Cu(II) 二氟尼柳胺与新乌头碱的配合物及其对癌细胞株的特殊抗增殖活性

IF 4 3区化学

Dalton Transactions Pub Date : 2024-09-27 DOI: 10.1039/d4dt01736f

Romana Smolková, Lukáš Smolko, Erika Samolova, Ibrahim Morgan, Robert Rennert, Goran Kaluđerović

{"title":"Novel Zn(II), Co(II) and Cu(II) diflunisalato complexes with neocuproine and their exceptional antiproliferative activity against cancer cell lines","authors":"Romana Smolková, Lukáš Smolko, Erika Samolova, Ibrahim Morgan, Robert Rennert, Goran Kaluđerović","doi":"10.1039/d4dt01736f","DOIUrl":"https://doi.org/10.1039/d4dt01736f","url":null,"abstract":"Three novel complexes of deprotonated diflunisal (dif) with neocuproine (neo) were synthesized and characterized by elemental, spectral (UV-Vis, FTIR, fluorescence, mass spectrometry) and single-crystal X-ray diffraction analysis. Although, the compounds have a similar composition of [MCl(dif)(neo)], where M represents Zn(II) (1), Co(II) (2) and Cu(II) (3), respectively, only 1 and 2 are isostructural, while 3 differs in both molecular and supramolecular structure. In all three complex molecules, the central atom is coordinated by two nitrogen atoms of neo in bidentate chelate mode, one chlorido ligand and dif is bonded in either monodentate mode via one oxygen atom of the carboxylate in 1 and 2 or in bidentate chelate mode via both carboxylate oxygen atoms in 3. All three compounds demonstrated remarkable antiproliferative activity against human prostate (PC-3), colon (HCT116) and breast (MDA-MB-468) cancer cell lines with IC50 values in the nanomolar range, with the lowest values observed in case of PC-3 and MDA-MB-468 with 2 (20.0 nM) and 3 (31.1 nM), respectively. Moreover, complex 2, as the most active, was further investigated for its potential to induce perturbations in the cell cycle of PC-3 cells. The results indicate an induction of caspase-independent apoptosis. The interaction of the complexes with genomic DNA isolated from the respective cancer cell lines was evaluated for the intercalative mode, with the binding strength correlating with the antiproliferative activity against the PC-3 and MDA-MB-468 cancer cell lines.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142324941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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