Dalton Transactions最新文献

{"title":"Ligand-directed top-down synthesis of trivacant lacunary polyoxomolybdates from plenary Keggin-type [α-XMo12O40]3− (X = P, As, V) in organic media","authors":"Atsuhiro Jimbo, Chifeng Li, Kentaro Yonesato, Kazuya Yamaguchi, Kosuke Suzuki","doi":"10.1039/d5dt00252d","DOIUrl":"https://doi.org/10.1039/d5dt00252d","url":null,"abstract":"Lacunary polyoxometalates (POMs), featuring highly reactive vacant sites, serve as valuable building blocks and precursors for the rational design of functional materials with widespread applications in catalysis, analytical chemistry, energy conversion and storage, medicine, and optical materials. While diverse Keggin-type polyoxotungstates, including both plenary and lacunary species, have been synthesized through dehydration condensation reactions and equilibrium displacement in aqueous solvents, the isolation and use of lacunary polyoxomolybdates remain challenging. To address this, the current study proposes a “ligand-directed top-down synthetic approach” for producing lacunary polyoxomolybdates from plenary Keggin-type species in organic solvents. By reacting plenary Keggin-type polyoxomolybdates [α-XMo<small>₁₂</small>O<small>₄₀</small>]<small>³⁻</small> (X = P, As, V) with 4-methoxypyridine (pyOMe) in acetonitrile, we successfully synthesize the corresponding trivacant lacunary polyoxomolybdates ([XMo<small>₉</small>O<small>₃₁</small>(pyOMe)<small>₃</small>]<small>³⁻</small>), where the vacant sites are stabilized by three pyOMe ligands. Remarkably, this approach enables the synthesis of a lacunary vanadomolybdate, a species previously unattainable through equilibrium control in aqueous systems. Furthermore, the reversible coordination of pyOMe ligands to molybdenum atoms at the vacant sites makes these lacunary polyoxomolybdates highly versatile precursors for assembling POM–organic hybrids. Overall, this study introduces an innovative synthetic methodology for POMs, demonstrating notable potential for advancing the development of functional materials.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"15 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143495745","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}

{"title":"Nickel-Catalyzed Reductive Arylalkylation of Alkenes: 5-Exo Cyclization vs. 6-Endo Cyclization vs. 1,2-Aryl Migration to 6-Endo Product","authors":"Yuxin Du, Hongli Wu, Miao Yang, Yuanbin She, Yun-Fang Yang","doi":"10.1039/d5dt00094g","DOIUrl":"https://doi.org/10.1039/d5dt00094g","url":null,"abstract":"The detailed mechanisms of Ni-catalyzed reductive arylalkylation of unactivated alkenes with aryl bromides to synthesize benzene-fused 5-exo and 6-endo cyclic compounds were systematically investigated by DFT calculations. Our finding reveals that, under the catalysis of a Ni/biOx system with Zn as a reductant, bromobenzene containing a terminal olefins unit preferentially undergoes traditional Heck cyclization and cross-coupling reactions, favoring the formation of 5-exo cyclization products. In contrast, when Zn is absent, NiIII-alkyl species play a pivotal role, facilitating a rare 1,2-aryl migration followed by H-atom abstration, which selectively yields 6-endo cyclization products.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"66 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143495746","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}

{"title":"Anti AIE single molecular fluorescent switch for detection of heavy metal ions","authors":"Yi-Mei Peng, Yuming Guan, Qixia Bai, Gang Chen, Wei-Quan Lin, Jingxian Pang, Wen-Bo Xu, Pingshan Wang, Tingzheng Xie","doi":"10.1039/d5dt00041f","DOIUrl":"https://doi.org/10.1039/d5dt00041f","url":null,"abstract":"Fluorescent probes for heavy metal ions are an efficient, low-cost, on-site operable detection method, which have been widely applied in both environmental and biomedical monitoring. Herein, we present a single-molecule anti AIE fluorescent sensor for the detection of heavy metal ions based on fold/unfold conformational transition of AIE molecular modules in single molecule triggered by coordination of heavy metal ions. The fluorescent probe is able to detect a range of heavy metal ions at concentrations well below “Hygienic Standard for Drinking Water”, and is expected to be used as a fluorescent probe with a new detection mechanism for heavy metal ion to apply for environmental detection or bio-monitoring applications.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"29 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143495749","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}

{"title":"Solvent-free fabrication of Ni2P/UiO-66 catalyst for the hydrogenation of furfural to cyclopentanone","authors":"Fanglin Liu, Luyao Li, Hui Hu, Mengting Yu, Dan Zhao, Shengjun Deng, Shunmin Ding, Weiming Xiao, Shuhua Wang, Chao Chen","doi":"10.1039/d4dt03318c","DOIUrl":"https://doi.org/10.1039/d4dt03318c","url":null,"abstract":"Dispersing the metal phosphides on the supports with large surface areas would be a feasible way to boost the catalytic hydrogenation performance. However, as a kind of very promising porous materials, metal-organic frameworks (MOFs) have rarely been used to load the metal phosphides for the harsh synthesis conditions of metal phosphides. This work demonstrated a facile and solvent-free method to construct a highly dispersed Ni2P/UiO-66 catalyst (the particle size of Ni2P is 2.9 nm). In this method, nickel precursor was loaded on UiO-66 by simple ball milling, then phosphating to obtain the Ni2P/UiO-66 catalysts by using sodium hypophosphite at 300 oC. This solvent-free process in line with the concept of green synthesis. In addition, the prepared Ni2P/UiO-66 showed good catalytic performance for the hydrogenation of furfural to cyclopentanone, with 97.5% yield of cyclopentanone under the conditions of 0.5 MPa H2, 150 oC, 10 h.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"29 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143495744","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}

{"title":"A novel type of heteroleptic Cu(I) complexes featuring nitrogen-rich tetrazine ligands: Syntheses, Crystal Structures, Spectral properties, Cyclic Voltammetry, and Theoretical Calculations","authors":"Adam Sztula, Peter Antal, Ivan Nemec, Martin Kubala, Radovan Herchel","doi":"10.1039/d4dt03137g","DOIUrl":"https://doi.org/10.1039/d4dt03137g","url":null,"abstract":"Heteroleptic copper(I) complexes with the general formula [Cu(N^N)(P^P)]X constitute one of the most studied categories of 3d metal photosensitizers. Here, we examine using 1,2,4,5-tetrazine-based ligands to synthesize photoactive Cu(I) complexes. The newly prepared complexes were characterized by single-crystal X-ray analysis, which revealed the formation of dinuclear complexes [Cu2(μ-L1)(xantphos)2](ClO4)2 (1) and [Cu2(μ-L2)(xantphos)2](ClO4)2 (2), and mononuclear complexes [Cu(L3)(xantphos)]ClO4 (3) and [Cu(L4)(xantphos)]ClO4 (4), where L1 = 3,6-di(2’-pyridyl)-1,2,4,5-tetrazine (bptz) , L2 = 3,6-bis-(3,5-dimethyl-pyrazol-1-yl)-1,2,4,5-tetrazine, L3 = 3-(2-pyridyl)-1,2,4,5-tetrazine, L4 = 3-(3,5-dimethyl-1H-pyrazol-1-yl)-1,2,4,5-tetrazine and xantphos = 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene. Solution stability assays were addressed by NMR spectroscopy showing that complexes are stable in dichloromethane over several days. The electronic excited states were investigated by UV-Vis and luminiscence spectroscopy and interpreted with the help of TD-DFT calculations. In the case of all the newly prepared complexes 1–4, the absorptions in the visible region were assigned to non-emissive MLCT transitions between the Cu(I) and the respective tetrazine ligand. Redox properties were probed by cyclic voltammetry and also supplemented by DFT calculations. Interestingly, tetrazine ligands L1–L4 show a shift of reduction potential to less negative values upon the formation of Cu(I) complexes 1–4. Moreover, the two complexes 3–4 represent the first reported case of mononuclear heteroleptic Cu(I)-tetrazine complexes.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"17 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143486543","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}

{"title":"A Ring-Strain Model for Predicting 29Si NMR Chemical Shifts in Polyhedral Oligomeric Silsesquioxanes and Siloxanes","authors":"Mathilde Laird, Carole Carcel, Michel Wong Chi Man, John R. Bartlett","doi":"10.1039/d4dt03515a","DOIUrl":"https://doi.org/10.1039/d4dt03515a","url":null,"abstract":"We present a model for predicting <small>²⁹</small>Si NMR chemical shifts (δ) in polyhedral oligomeric silsesquioxanes (POSS) and siloxanes (POS) incorporating rings with 3, 4, 5 and/or 6 Si atoms. The model, based on the <small>²⁹</small>Si NMR spectra of POSS/POS compounds with 30 different functional groups, relies on the observation that the influence of ring strain on δ is essentially independent of the functional group attached to the polyhedra. It is anticipated that such correlations would be of value in attributing <small>²⁹</small>Si NMR chemical shifts in new POSS and POS compounds","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"53 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143486540","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}

{"title":"Recent advances in heavier Group 15 (P, As, Sb, Bi) radical chemistry – frameworks, small molecule reactivity, and catalysis","authors":"Jason Douglas Masuda, Deana Lillian Gladys Symes","doi":"10.1039/d4dt03582h","DOIUrl":"https://doi.org/10.1039/d4dt03582h","url":null,"abstract":"Main group radical chemistry has been a targeted research area for several decades. With growing examples of phosphorus radicals, heavier pnictogen radicals including arsenic, antimony, and bismuth have also become important targets. A diverse framework of Group 15 radicals has been reported in the 21st century and is covered herein. Reactivity and applications of selected radicals and future directions for this field are discussed.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"27 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143486539","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}

{"title":"Tunable orange-deep red photoluminescence in amorphous KZn1−xMnx(PO3)3 phosphors and anti-counterfeiting applications","authors":"Jiayue Jiang, Hao Wang, Tingting Zhao, Yixuan Xu, Junlong Li, Hu Cheng, Fei Zhang, Dongliang Yang, Yu Gong, Chuanlong Lin, Xiaodong Li, Yanchun Li","doi":"10.1039/d5dt00007f","DOIUrl":"https://doi.org/10.1039/d5dt00007f","url":null,"abstract":"Amorphous luminescence is a fascinating light emission phenomenon with significant implications for displays, sensors, and the anti-counterfeiting field. However, the development of amorphous materials is relatively limited due to the challenges in their synthesis and characterization, usually lagging behind those of their crystalline counterparts. This paper reports a triphosphate KZn<small>_{1−<em>x</em>}</small>Mn<small>_<em>x</em></small>(PO<small>₃</small>)<small>₃</small> (0 ≤ <em>x</em> ≤ 1) phosphor that can form two crystal phases (α-phase and β-phase) and an amorphous phase (Am-phase) by adjusting the synthesis temperature. Research shows that the Am-KZn<small>_{1−<em>x</em>}</small>Mn<small>_<em>x</em></small>(PO<small>₃</small>)<small>₃</small> phosphor exhibits superior luminescence properties compared to its crystalline counterparts. By varying the ratio of Zn/Mn, this amorphous phosphor can achieve multi-color photoluminescence (PL) ranging from orange to deep red (604 nm–693 nm), with a full width at half maximum (FWHM) of ∼100 nm. In addition, the Am-KZn<small>_{1−<em>x</em>}</small>Mn<small>_<em>x</em></small>(PO<small>₃</small>)<small>₃</small> phosphor demonstrates fewer trap energy levels, while crystalline phosphors have abundant thermoluminescence (TL) traps. These structural and optical characteristics elucidate the luminescence mechanism of the phosphors dependent on Mn<small>²⁺</small> and defects. Finally, by combining the PL and TL characteristics of the KZn<small>_{1−<em>x</em>}</small>Mn<small>_<em>x</em></small>(PO<small>₃</small>)<small>₃</small> phosphor with different phases and Mn concentrations, an anti-counterfeiting code method was designed, indicating that this material has great potential for applications in the field of anti-counterfeiting and information storage.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"15 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143486544","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}

{"title":"Tungsten Regulate Medium-Entropy Heterostructure as a highly efficient electrocatalyst for oxygen evolution reaction","authors":"Jianliang Yuan, Qianglong Qi, Qingwen Wan, Jiangli Gong, Yue Zhang, Yuebin Feng, Chengxu Zhang, Jue Hu","doi":"10.1039/d5dt00258c","DOIUrl":"https://doi.org/10.1039/d5dt00258c","url":null,"abstract":"Medium-entropy alloys (MEAs) as electrocatalysts have attracted considerable attention in the field of water splitting. However, effective modulation of MEAs to achieve highly efficient catalysis remains a challenge. Herein, we applied a metal-organic framework (MOF) templating strategy to obtain FeCoNi MEA nanoparticles with excellent oxygen evolution reaction (OER) activity and tungsten improved FeCoNi-W medium-entropy heterostructure catalysts. The incorporation of tungsten changes the electronic structure of FeCoNi MEA. The mesoporous alloy exhibits multiple active sites and unique atomic-level synergies that enhance the effective binding of reactants and the formation of crucial *OH intermediates critical for OER. The rationally designed and constructed tungsten-refined FeCoNi-W medium-entropy heterostructure electrode demonstrates superior OER performance (270 mV at 10 mA cm−2, Tafel slope of 43.2 mV dec−1) and stability (50 h at 100 mA cm−2) compared to commercial noble metal electrodes. This work will provide a basis for tailoring the properties of M/HEAs through local chemical modification.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"43 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143486542","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}

{"title":"Redox-active tin(II) complexes with sterically demanding o-phenylenediamido ligands and their reactivity with organic azides","authors":"Hideki Sugimoto, Akira Yoneda, Mayuka Yano, Kazunobu Sato, Yoshihito Shiota, Mayuko Miyanishi, Kazunari Yoshizawa, Shinobu Itoh","doi":"10.1039/d5dt00100e","DOIUrl":"https://doi.org/10.1039/d5dt00100e","url":null,"abstract":"A series of tin(&lt;small&gt;II&lt;/small&gt;) complexes &lt;strong&gt;&lt;small&gt;&lt;sup&gt;R&lt;/sup&gt;&lt;/small&gt;1&lt;/strong&gt; supported by phenylene-1,2-diamido ligands containing a bulky &lt;em&gt;N&lt;/em&gt;-substituent TIPT (2,4,2′′,4′′-tetraisopropyl-[1,1′:3′,1′′]terphenyl) and different aromatic substituents R (Cl, H, Me, OMe) at the 4,5-positions and by a naphthalene-2,3-diamido ligand with the TIPT substituent &lt;strong&gt;&lt;small&gt;&lt;sup&gt;naph&lt;/sup&gt;&lt;/small&gt;1&lt;/strong&gt; are synthesised and characterised. Tin(&lt;small&gt;II&lt;/small&gt;) complexes &lt;strong&gt;SnL&lt;small&gt;&lt;sup&gt;Me&lt;/sup&gt;&lt;/small&gt;&lt;/strong&gt; and &lt;strong&gt;SnL&lt;small&gt;&lt;sup&gt;Ph(&lt;em&gt;t&lt;/em&gt;Bu)2&lt;/sup&gt;&lt;/small&gt;&lt;/strong&gt; supported by phenylene-1,2-diamido ligands with sterically less hindered &lt;em&gt;N&lt;/em&gt;-substituents, Ph or 3,5-di-&lt;em&gt;tert&lt;/em&gt;-butylphenyl, are also prepared as reference complexes. Crystal structures of &lt;strong&gt;&lt;small&gt;&lt;sup&gt;R&lt;/sup&gt;&lt;/small&gt;1&lt;/strong&gt; and &lt;strong&gt;&lt;small&gt;&lt;sup&gt;naph&lt;/sup&gt;&lt;/small&gt;1&lt;/strong&gt; show that the tin(&lt;small&gt;II&lt;/small&gt;) centers are coordinated with the two amido nitrogen atoms of the respective deprotonated chelating ligand and two solvent molecules such as tetrahydrofuran and/or acetonitrile. On the other hand, the tin(&lt;small&gt;II&lt;/small&gt;) complex &lt;strong&gt;SnL&lt;small&gt;&lt;sup&gt;Ph(&lt;em&gt;t&lt;/em&gt;Bu)2&lt;/sup&gt;&lt;/small&gt;&lt;/strong&gt; contains only one coordinating solvent molecule, and its tin(&lt;small&gt;II&lt;/small&gt;) center exhibits intermolecular interaction with the aromatic ligand moiety of a neighboring tin(&lt;small&gt;II&lt;/small&gt;) complex through a 5p–π interaction. The &lt;small&gt;&lt;sup&gt;119&lt;/sup&gt;&lt;/small&gt;Sn NMR signal of &lt;strong&gt;&lt;small&gt;&lt;sup&gt;R&lt;/sup&gt;&lt;/small&gt;1&lt;/strong&gt; in C&lt;small&gt;&lt;sub&gt;6&lt;/sub&gt;&lt;/small&gt;D&lt;small&gt;&lt;sub&gt;6&lt;/sub&gt;&lt;/small&gt; shifts from the lower- to higher-magnetic field region as R becomes more electron-withdrawing, which can be explained by assuming that the naked two-coordinate tin(&lt;small&gt;II&lt;/small&gt;) complex and solvent-involving three- and/or four-coordinate tin(&lt;small&gt;II&lt;/small&gt;) complex exist in equilibrium in solution. The tin(&lt;small&gt;II&lt;/small&gt;) complexes with the sterically demanding ligands (&lt;strong&gt;&lt;small&gt;&lt;sup&gt;R&lt;/sup&gt;&lt;/small&gt;1&lt;/strong&gt; and &lt;strong&gt;&lt;small&gt;&lt;sup&gt;naph&lt;/sup&gt;&lt;/small&gt;1&lt;/strong&gt;) are more stabilised against hydrolysis when compared with &lt;strong&gt;SnL&lt;small&gt;&lt;sup&gt;Ph&lt;/sup&gt;&lt;/small&gt;&lt;/strong&gt; and &lt;strong&gt;SnL&lt;small&gt;&lt;sup&gt;Ph(&lt;em&gt;t&lt;/em&gt;Bu)2&lt;/sup&gt;&lt;/small&gt;&lt;/strong&gt;. The tin(&lt;small&gt;II&lt;/small&gt;) complexes &lt;strong&gt;&lt;small&gt;&lt;sup&gt;R&lt;/sup&gt;&lt;/small&gt;1&lt;/strong&gt; and &lt;strong&gt;&lt;small&gt;&lt;sup&gt;naph&lt;/sup&gt;&lt;/small&gt;1&lt;/strong&gt; undergo one-electron quasi-reversible ligand-based redox oxidation in a range from −0.45 V to +0.13 V &lt;em&gt;vs&lt;/em&gt;. Fc/Fc&lt;small&gt;&lt;sup&gt;+&lt;/sup&gt;&lt;/small&gt;. The tin(&lt;small&gt;II&lt;/small&gt;) complexes having electron-donating groups (R = OMe, Me, H) exhibit intramolecular C–H amination reactivity when treated with trisylazide (2,4,6-triisopropylphenylsulfonyl azide), giving sultam (5,7-diisopropyl-2,3-dihydro-3,3-dimethyl-1,2-benzothiazole-1,1-dioxide) as the product. On the other hand, the tin(&lt;small&gt;II&lt;/small&gt;) complexes having electron-withdrawing groups (R = Cl, naph) do not show","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"68 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143486563","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}