{"title":"An Amide-Functionalized Pillar-Layered Metal–Organic Framework Based on Mixed Linker Systems with Enhanced Third-Order Nonlinear Optical Performance","authors":"Reza Abazari, Marzieh Nadafan, Soheila Sanati, Rajender S. Varma, Jinjie Qian","doi":"10.1021/acs.inorgchem.5c03846","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c03846","url":null,"abstract":"The development of novel nonlinear optical (NLO) materials is increasingly focused on crystal structures that offer both high efficiency and laser damage thresholds, particularly for appliances in optical switching and communications. Herein, an experimental inquiry is described into the third order NLO response of an amide-functionalized pillar-layered metal–organic framework (MOF) encompassing cobalt ions and 4,4′-oxybis(benzoic acid) and <i>N</i>,<i>N</i>′-bis(4-pyridylformamide)-1,4-benzenediamine linkers. The introduced MOF possesses a complex porous structure defined by a 3,4,5T94 topology. The π-conjugated structure and nitrogen-containing derivatives with lone electron pairs on the nitrogen atoms endow this MOF with strong intramolecular charge-transfer capabilities, thereby facilitating the formation of donor–acceptor molecules. The pillared Co-MOF offers a significant nonlinear optical profile, with an NLR index (<i>n</i><sub>2</sub>) at a range of (6.6–19.1) × 10<sup>–8</sup> cm<sup>2</sup>/W and an NLA coefficient (β) of (2.92–14.27) × 10<sup>–3</sup> cm/W. The rationale explanation for the NLO response in pillared Co-MOFs, could be d–d transitions of Co<sup>2+</sup> ions, π–π and LMCT/MLCT transitions, charge-transfer interactions between metal nodes and organic linkers, structural anisotropy, and pillar-induced electron delocalization. The Z-scan findings highlight the potential of the pillared MOFs with mixed ligands as promising alternatives for photonics devices, optical switches, and optical power-limiting technologies.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"23 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145116242","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}
Melanie Riethmann,Leonhard Eyßelein,Janis Walpuski,Leon N Schneider,Maik Finze,Udo Radius
{"title":"Isocyanate Route to Tungsten(VI) Imido Fluorido Complexes.","authors":"Melanie Riethmann,Leonhard Eyßelein,Janis Walpuski,Leon N Schneider,Maik Finze,Udo Radius","doi":"10.1021/acs.inorgchem.5c03289","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c03289","url":null,"abstract":"A general synthetic route for tungsten(VI) organoimido fluorido complexes is reported, which relies on the key metathesis of organo isocyanates and tungsten(VI) oxo tetrafluoride or its acetonitrile adduct [WOF4(MeCN)]. The reaction of 4-tolyl isocyanate, 2,5-dimethylphenyl isocyanate, benzyl isocyanate, 4-fluorophenyl isocyanate and 4-chlorophenyl isocyanate with [WOF4] or [WOF4(MeCN)] at 100 °C in acetonitrile (MeCN) or tetrahydrofuran (THF) afforded the imido complexes [W(NR)F4(L)] (R = Tol = tolyl = 4-CH3-C6H4, 1; DMP = 2,6-dimethylphenyl = 2,6-(CH3)2-C6H3, 2; Bn = benzyl = CH2-C6H5, 3; FPhen = 4-fluorophenyl = 4-F-C6H4, 4; ClPhen = 4-chlorophenyl = 4-Cl-C6H4, 5) as their MeCN or THF adducts 1(MeCN)-5(MeCN) and 1(THF)-5(THF), respectively. Similarly, treatment of [WOF4(MeCN)] with 1,4-phenylene diisocyanate in acetonitrile afforded the dinuclear complex [{WF4(MeCN)}2{μ-1,4-NC6H4N}] (6(MeCN)). The solvent ligand can be easily replaced, as exemplified for the reaction of 1(MeCN), 4(MeCN), and 5(MeCN) with pyridine (py) or 1(MeCN) with benzophenone (PhCOPh) to yield 1(py), 4(py), 5(py) and 1(PhCOPh). Furthermore, 1(MeCN) and 2(MeCN) react with [NMe4]F and NEt3·3HF to yield the tungstate(VI) imido pentafluorido salts [cat][W(NR)F5] (R = Tol, a; DMP; b; cat = NMe4, 7; NEt3H, 8) 7a-8b.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"8 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145103546","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}
{"title":"Dual-Emission Lanthanide-MOF Sensors Enabling Ratiometric Fluorescent Detection of 2,4,6-Trinitrotoluene with High Selectivity.","authors":"Wei Lv,Nan Song,Yu-Dong Shao,Quan-Guo Zhai","doi":"10.1021/acs.inorgchem.5c03421","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c03421","url":null,"abstract":"Although designing dual-emission probes remains challenging, mixed-ligand metal-organic frameworks (MOFs) offer a promising platform for ratiometric fluorescent sensors. MOFs with multiple components of different metal centers and/or different ligands provide a great chance for the precise synthesis of ratiometric fluorescent sensors. Herein, N,N'-bis(5-isophthalic acid)-naphthalene diimide (NDI) with a large π-conjugate plane was selected to combine with 2,5-dihydroxyterephthalic acid (DHBDC), a typical molecule with an excited-state intramolecular proton transfer process, to form a mixed-ligand system. Their self-assembly with lanthanide metal ions (Ln3+) under solvothermal conditions led to a series of Ln-MOFs, named [Ln(DHBDC)0.5(NDI)0.5·solvents] (SNNU-380(Ln); Ln = Tb, Eu, Er, Dy, Gd, and Nd; solvents = N,N'-dimethylformamide (DMF) and/or N,N'-dimethylpropyleneurea (DMPU)). As expected, SNNU-380(Ln) exhibits controllable dual fluorescence emissions originating from two fluorescent ligands (420 nm emission from NDI and 550 nm emission from DHBDC) mildly regulated by lanthanide metal ions and shows unique fluorescence quenching for selective 2,4,6-trinitrotoluene (TNT) detection through a photoinduced electron transfer (PET) mechanism. Among them, SNNU-380(Eu) exhibits outstanding detection ability with the highest sensitivity (KSV = 6.80 × 103 M-1), the lowest detection limit (0.18 ppm), a rapid response, exceptional selectivity among nitro-aromatic explosives (NAEs), and excellent recyclability, surpassing the performance of most MOF sensors.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"28 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145103571","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}
Jingjing Xu, Yan Xiao, Dazhi Lu, Bingbing Zhang, Kui Wu, Haohai Yu, Huaijin Zhang
{"title":"Modulating Nonlinear Optical Performances in α/β-SnGa2GeS6 Polymorphs via Atomic Coordination Engineering","authors":"Jingjing Xu, Yan Xiao, Dazhi Lu, Bingbing Zhang, Kui Wu, Haohai Yu, Huaijin Zhang","doi":"10.1021/acs.inorgchem.5c03960","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c03960","url":null,"abstract":"Property modulation based on structural transformation has emerged as a crucial strategy for developing high-performance nonlinear optical (NLO) crystals. Among them, polymorphic systems with structural diversity and fascinating performances have attracted growing attention in the exploration of NLO materials. In this work, adjusting the coordination environment (from SnS<sub>5</sub> to SnS<sub>3</sub>) of the lone-pair Sn<sup>2+</sup> cation enables the discovery of another new phase, β-SnGa<sub>2</sub>GeS<sub>6</sub>, which crystallizes in the <i>Cc</i> group that is different from the previously reported α-phase (<i>Fdd</i>2). Detailed characterization reveals distinct NLO properties between the α- and β-polymorphs, including NLO response (α: 17.8 pm/V vs β: 13.7 pm/V) and birefringence (α: 0.151 vs β: 0.126). Theoretical calculations confirm that the reduced NLO response in the β-phase arises from the canceled polarization of the [SnS<sub>3</sub>] units, as evidenced by dipole moment analysis. This study highlights the influence of atomic coordination engineering in polymorphic systems for structural transition and tunable NLO performances. Such established “phase transition → structural transformation → NLO property” relationship in polymorphs provides a design paradigm for discovering next-generation NLO materials.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"247 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145088939","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}
{"title":"RECrO3 as High-Contrast Thermochromic Memory Pigments: Enabled by Hydrothermal Distortions and Magnetic Tuning (RE = Eu, Tb, Y)","authors":"Shan Wang, Fen Chen, Zhaowei Xu, Tianming Zhang, Fanxu Meng, Long Yuan","doi":"10.1021/acs.inorgchem.5c03541","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c03541","url":null,"abstract":"Inorganic crystals synthesized via different methods with the “same” composition often exhibit distinct properties, a phenomenon frequently overlooked or misinterpreted. In this work, we demonstrate the peculiar magnetic properties and thermochromic memory behavior of three perovskite-structure rare-earth chromites (RECrO<sub>3</sub>, RE = Eu, Tb, and Y) synthesized by a mineralizer-assisted hydrothermal method at 225 °C. The crystals feature an elongated <i>b</i>-axis and greater distortion of the CrO<sub>6</sub> octahedral subunits. Crystal shapes are sensitive to the composition, mineralizer concentration, and reaction temperature. Raman and infrared peaks show a RE<sup>3+</sup>-dependent behavior. All samples are canted-antiferromagnetic with significantly lower Néel temperatures than the samples synthesized via other methods. Three notable magnetic transition points are shown in TbCrO<sub>3</sub>, which have never been found in other samples. Temperature and magnetic field dependent magnetization curves of EuCrO<sub>3</sub> samples show crystal shape dependent magnetic behaviors. All of the samples show continuously irreversible thermochromic properties from 100 to 500 °C with color changes from yellowish green to reddish brown with the highest chromaticity aberration of Δ<i>E</i> = 51.47 in TbCrO<sub>3</sub>. This work indicates that the materials synthesized via the mineralizer-assisted hydrothermal crystallization method facilitate versatile tunability of the structure and physical properties with promising thermal recording applications.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"54 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089387","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}
Gazal Sabharwal, Khilesh C. Dwivedi, Maravanji S. Balakrishna
{"title":"Facial and Meridional PNN-Ruthenium Pincer Complexes in Base-Free Nitrile Hydration with Concurrent Ligand Backbone Oxidation","authors":"Gazal Sabharwal, Khilesh C. Dwivedi, Maravanji S. Balakrishna","doi":"10.1021/acs.inorgchem.5c03183","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c03183","url":null,"abstract":"A tridentate amide-pyridine-monophosphine ligand, {(<i>o</i>-PPh<sub>2</sub>)C<sub>6</sub>H<sub>4</sub>C(O)N(H)CH<sub>2</sub>(C<sub>5</sub>H<sub>4</sub>N)} (<b>1</b>), has been employed to synthesize a series of Ru<sup>II</sup> and Ru<sup>III</sup> pincer complexes. Reaction of ligand <b>1</b> with [RuCl<sub>2</sub>(DMSO)<sub>4</sub>] and [RuCl<sub>2</sub>(PPh<sub>3</sub>)<sub>3</sub>] yielded [RuCl(C<sub>12</sub>H<sub>8</sub>N<sub>2</sub>){(PNN)-κ<sup>3</sup>-<i>P,N,N</i>}] (<b>2</b>) and [RuCl<sub>2</sub>(PPh<sub>3</sub>){(PNN)-κ<sup>3</sup>-<i>P,N,N</i>}] (<b>3</b>), respectively, while treatment with [RuHCl(CO)(PPh<sub>3</sub>)<sub>3</sub>] under varied conditions afforded pincer-type complexes [RuCl(CO)(PPh<sub>3</sub>){(PNN)-κ<sup>3</sup>-<i>P,N,N</i>}] (<b>4</b>), [RuH(CO)(PPh<sub>3</sub>){(PNN)-κ<sup>3</sup>-<i>P,N,N</i>}] (<b>5</b>), and [Ru(Cl)<sub>2</sub>(CO){(PNN)-κ<sup>3</sup>-<i>P,N,N</i>}]Cl (<b>6</b>). Ligand <b>1</b> upon reaction with [Ru(<i>p</i>-cymene)Cl<sub>2</sub>]<sub>2</sub> and [RuCl<sub>2</sub>(PPh<sub>3</sub>)<sub>3</sub>] under aerobic reaction conditions afforded [RuCl(CH<sub>3</sub>CN)<sub>2</sub>{(<i>o</i>-PPh<sub>2</sub>)C<sub>6</sub>H<sub>4</sub>C(O)NC(O)(C<sub>5</sub>H<sub>4</sub>N)}-κ<sup>3</sup>-<i>P,N,N</i>] (<b>7</b>) and [RuCl<sub>2</sub>(CH<sub>3</sub>OH){(<i>o</i>-PPh<sub>2</sub>)C<sub>6</sub>H<sub>4</sub>C(O)NC(O)(C<sub>5</sub>H<sub>4</sub>N)}-κ<sup>3</sup>-<i>P,N,N</i>] (<b>8</b>) complexes, respectively, showing base- and additive-free benzylic C–H oxidation at room temperature. Complexes <b>4</b> and <b>5</b> were employed in the hydration of nitriles to amides. Mechanistic studies support a [Ru–H] active species facilitating water activation through a [Ru–H···H–OH] dihydrogen bond, enabling nucleophilic attack on the coordinated nitrile. The catalyst system operates at low loadings, tolerating both electron-rich and electron-deficient nitriles.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"88 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089386","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}
Zanling Huang,Jintao Zhang,Qian Hu,Yaoyao Chen,Weiwei Zhu,Abebe Reda Woldu,Liangsheng Hu
{"title":"Oxygen Evolution Reaction Driven by Plasmon-Induced Hot Holes and S-Scheme Synergy in CuS@Polypyrrole Nanorods.","authors":"Zanling Huang,Jintao Zhang,Qian Hu,Yaoyao Chen,Weiwei Zhu,Abebe Reda Woldu,Liangsheng Hu","doi":"10.1021/acs.inorgchem.5c03573","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c03573","url":null,"abstract":"Copper sulfide (CuS) exhibits strong near-infrared local surface plasmon resonance (LSPR) but suffers from severe photocorrosion in alkaline media. To address this, we engineered a core-shell CuS@polypyrrole (CuS@PPy) heterostructure on copper foam. The optimized CuS@PPy-600 achieves exceptional oxygen evolution reaction (OER) performance with overpotentials of 383 mV (dark) and 333 mV (light) at 100 mA·cm-2, 81 mV lower than pristine CuS under illumination and a Tafel slope of 16.9 mV·dec-1 under light. The PPy shell enables dual synergistic mechanisms: (i) S-scheme heterojunction facilitating charge separation via interfacial electron transfer (XPS: Cu 2p ↑ 0.3 eV, N 1s ↓ 0.4 eV), suppressing recombination; and (ii) plasmonic hot-hole extraction where PPy's conductive π-matrix injects LSPR-generated hot holes into OER sites, accounting for 71% of activity gain under >800 nm light. This synergy delivers >24 h stability (<5% decay) by preventing CuS corrosion while optimizing plasmonic energy utilization.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"67 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145093576","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}
Yi Tao Zhao,Xian Qing Xie,Le Le Gong,Rong Hua,Zhi Wu Yu,Feng Luo
{"title":"Luminescent Zn5-Based Covalent Metal-Organic Framework Showing ∼3.2 Å Pocket for Fluorescence Recognition and Determination of Ce(III).","authors":"Yi Tao Zhao,Xian Qing Xie,Le Le Gong,Rong Hua,Zhi Wu Yu,Feng Luo","doi":"10.1021/acs.inorgchem.5c03672","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c03672","url":null,"abstract":"We report herein the construction of a covalent metal-organic framework (CMOF-Zn5-1) based on a Zn5 building block. Notably, its stacking architecture affords interlayer pockets with a size of ∼3.2 Å, which is matchable with the size of rare earth ions, leading to fluorescence sensing of Ce3+ with a low detection limit of 90 nM (12.6 ppb) and a standard deviation of 8.5%, suggesting the superior application of CMOF-Zn5-1 for detecting Ce3+.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"79 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145083589","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}
{"title":"Hydrogen Insertion Optimizes the Electronic State of Pd–Ir Nanoalloys to Enhance Methanol Electrocatalytic Oxidation","authors":"Sizhuo Ma, , , Dan Huang, , , Jinjuan Zhao, , , Yuner Xu, , , Mengjie Li, , , Zheng Liu, , , Honglei Yang, , , Shuai Han*, , and , Shuwen Li*, ","doi":"10.1021/acs.inorgchem.5c03656","DOIUrl":"10.1021/acs.inorgchem.5c03656","url":null,"abstract":"<p >The optimized electronic state of an electrocatalyst is a powerful approach to promoting the methanol oxidation reaction (MOR). In this work, H incorporated into the Pd–Ir alloy decorated on nitrogen-doped graphene (designated as Pd<sub>7</sub>IrH<sub><i>x</i></sub>/NG) was fabricated through a mild method. As an electrocatalyst for MOR in alkaline media, Pd<sub>7</sub>IrH<sub><i>x</i></sub>/NG achieves a catalytic activity of 1625.0 mA mg<sup>–1</sup> (mass activity) and 5.9 mA cm<sup>–2</sup> (specific activity), along with exceptional long-term cycle stability. This far exceeds those of Pd<sub>7</sub>Ir/NG, PdH<sub><i>x</i></sub>/NG, Pd/NG, and commercial Pd/C catalysts. Structural characterization reveals that the electronic states of Pd and Ir in Pd<sub>7</sub>IrH<sub><i>x</i></sub>/NG in terms of binding energy and the ratio of zerovalent to oxidized metals were efficiently optimized through hydrogen insertion. Consequently, this modification creates more channels for the dual-coupled transfer of electrons and protons. This not only supplies an ample amount of active hydroxyl species but also optimizes the adsorption of intermediates. The results highlight the importance of optimizing the electronic state and provide an efficient strategy to design advanced electrocatalysts for small organic molecular electro-oxidation.</p>","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"64 38","pages":"19497–19504"},"PeriodicalIF":4.7,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145083612","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}
{"title":"Interaction of Congo Red with MOFs Facilitates Specific Detection of Cr(VI) in Water.","authors":"Xu-Hui Zhao,Rui-Dong Wang,Jun-Fu Man,Zong-Qing Ma,Lei Wang,Wei-Ming Wei,Hua Liu,Wen-Qian Zhang,Lin Du,Qi-Hua Zhao","doi":"10.1021/acs.inorgchem.5c03177","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c03177","url":null,"abstract":"In this work, three novel three-dimensional metal-organic frameworks (MOF-1-3) were successfully synthesized, and their chemical stability and intrinsic fluorescence sensing capabilities were confirmed. Property modification of MOF-1-3 was realized via the loading of Congo red (CR), a cationic dye; meanwhile, the CR loading behavior and underlying mechanism of these MOFs were systematically investigated. After CR loading, the fluorescence properties of the resulting CR@MOF-1-3 composites underwent significant changes. Notably, compared with MOF-1-3, CR@MOF-1-3 exhibited selective recognition toward Cr(VI) anions (CrO42- and Cr2O72-) while effectively eliminating interference from Fe(III) ions. This study underscores the potential of CR@MOF-1-3 as multifunctional fluorescent sensing platforms for environmental monitoring and chemical analysis and provides rational guidance for the design of MOF-based fluorescent probes.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"177 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145083561","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}