European Journal of Inorganic Chemistry最新文献_第5页

From Olefin Coordination to Rh─N Bond Formation and Oxidative Addition: pH Effects in Rhodium α-Methyl-β-Amidoitaconate Complexes 从烯烃配位到Rh─N键形成和氧化加成：α-甲基-β-氨基衣康酸铑配合物的pH效应

IF 1.8 4区化学

European Journal of Inorganic Chemistry Pub Date : 2026-08-17 Epub Date: 2026-07-15 DOI: 10.1002/ejic.70276

Neeraja M. Kaimal, Thomas Osterland, Hans-Joachim Drexler, Torsten Beweries

{"title":"From Olefin Coordination to Rh─N Bond Formation and Oxidative Addition: pH Effects in Rhodium α-Methyl-β-Amidoitaconate Complexes","authors":"Neeraja M. Kaimal, Thomas Osterland, Hans-Joachim Drexler, Torsten Beweries","doi":"10.1002/ejic.70276","DOIUrl":"https://doi.org/10.1002/ejic.70276","url":null,"abstract":"The understanding of the nature of catalyst–substrate complexes is key for the optimization of catalytic transformations such as asymmetric hydrogenation of prochiral olefins. We present a crystallographic and NMR spectroscopic study of coordination of the prochiral olefin α-methyl-β-amidoitaconate to two [Rh(diphosphine)]+ fragments under varying pH conditions. While under neutral conditions substrate coordination is observed, yielding the expected Rh(I)–substrate complexes, the coordination under basic conditions results in the deprotonation of the amide group, giving neutral Rh(I) complexes that possess covalent Rh–N linkages. At low pH, oxidative addition of the acid induces 1,2-insertion of the olefin functional group into the Rh hydride, resulting in the formation of Rh(III) alkyl complexes that are commonly regarded as catalytically inactive species for hydrogenation. The NMR spectroscopic aspects of these rare transformations are investigated using a combination of low-field flow and high-field NMR spectroscopy. Finally, the relevance of these observations for asymmetric hydrogenation of α-methyl-β-amidoitaconate is discussed.","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"29 24","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejic.70276","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148753796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Tuning Thiol Stability and Anticancer Activity in Benzimidazole-Derived Au(I)–NHC Complexes Through Chloride-to-Thiolate Ligand Exchange 通过氯化物-硫酸盐配体交换调节苯并咪唑衍生的金(I) -NHC配合物的硫醇稳定性和抗癌活性

IF 1.8 4区化学

European Journal of Inorganic Chemistry Pub Date : 2026-08-17 Epub Date: 2026-07-20 DOI: 10.1002/ejic.70283

Shivangi Shivangi, Bidare N. SharathBabu, Govindasamy Mugesh

{"title":"Tuning Thiol Stability and Anticancer Activity in Benzimidazole-Derived Au(I)–NHC Complexes Through Chloride-to-Thiolate Ligand Exchange","authors":"Shivangi Shivangi, Bidare N. SharathBabu, Govindasamy Mugesh","doi":"10.1002/ejic.70283","DOIUrl":"https://doi.org/10.1002/ejic.70283","url":null,"abstract":"Gold(I) N-heterocyclic carbene (Au(I)–NHC) complexes are promising anticancer agents, but their therapeutic potential is often limited by rapid deactivation by thiol-containing biomolecules such as glutathione (GSH) and cysteine (Cys). Here, we report a ligand engineering strategy to modulate the stability and biological activity of 1,3-disubstituted benzimidazolium-derived Au(I) complexes. A series of Au(I) chlorido complexes bearing diverse N-substituents was synthesized, and the chlorido ligand was replaced with thiolate ligands, including 2-mercaptopyrimidine and thioglucose, to improve resistance to thiol-mediated deactivation. The complexes were characterized by NMR, HRMS, Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and single-crystal X-ray diffraction. Structural and computational studies revealed linear two-coordinate Au(I) centers with strong AuC bonding and metal-to-ligand charge transfer character. The complexes showed potent cytotoxicity across multiple cancer cell lines, including HT1080, Huh-7, MCF-7, MDA-MB-231, A549, HCT116, and HeLa, with better selectivity than in noncancerous HEK293T cells. Several compounds outperformed auranofin. Mechanistic studies using inhibitors of apoptosis, necroptosis, autophagy, and ferroptosis suggested that the cytotoxicity does not involve canonical regulated cell death pathways, but it is consistent with a predominantly nonapoptotic, necrotic mode of cell death.","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"29 24","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148754249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Front Cover: A Deep-Blue Emitting Macrocyclic Digold(I) Complex Supported by a Bridging Multiresonance Ligand (Eur. J. Inorg. Chem. 24/2026) 封面：一种由桥接多共振配体支撑的深蓝色发光大环双金(I)配合物。j . Inorg。化学24/2026)

IF 1.8 4区化学

European Journal of Inorganic Chemistry Pub Date : 2026-08-17 DOI: 10.1002/ejic.70299

Li Jiang, Sijie Xian, Yi Zhang, Sai Luo, Hua-Chao Liu, Kai Li

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Axially Bonded 3-Pyrrolyl BODIPY-ZnII and RuII Metalloporphyrin Triads: Synthesis and Properties 轴向键合的3-吡咯基体dipy - znii和RuII金属卟啉三元化合物的合成和性质

IF 1.8 4区化学

European Journal of Inorganic Chemistry Pub Date : 2026-08-17 Epub Date: 2026-07-16 DOI: 10.1002/ejic.70279

Pinky Chauhan, Anasuya Maji, Mangalampalli Ravikanth

{"title":"Axially Bonded 3-Pyrrolyl BODIPY-ZnII and RuII Metalloporphyrin Triads: Synthesis and Properties","authors":"Pinky Chauhan, Anasuya Maji, Mangalampalli Ravikanth","doi":"10.1002/ejic.70279","DOIUrl":"https://doi.org/10.1002/ejic.70279","url":null,"abstract":"The 5,11-dipyridyl 3-pyrrolyl BODIPY building block was synthesized by coupling of 5,11-dibromo 3-pyrrolyl BODIPY with 4-pyridine boronic acid under Pd(0) coupling conditions and used it for the synthesis of 3-pyrrolyl BODIPY-(ZnII porphyrin)2 triad 4 and 3-pyrrolyl BODIPY-(RuII porphyrin)2 triad 5 by adopting “axial bonding strategy”. 1D and 2D NMR techniques have been used extensively to establish the molecular structures of both the triads. NMR studies indicated that the Ru(II)-pyridine “N” bond was stronger in 3-pyrrolyl BODIPY-(RuII porphyrin)2 triad 5 compared to Zn(II)-pyridine “N” bond in 3-pyrrolyl BODIPY-(ZnII porphyrin)2 triad 4. The absorption and electrochemical studies showed the features of both 3-pyrrolyl BODIPY and metalloporphyrin units and steady state fluorescence studies indicated a possibility of energy transfer from donor metalloporphyrin unit to acceptor 3-pyrrolyl BODIPY unit in 3-pyrrolyl BODIPY-(ZnIIporphyrin)2 in triad 4. Furthermore, DFT studies supported the experimental observations and provided insights into the electronic structures and excited-state properties of the triads.","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"29 24","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148754139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Multimetallic Synergy-Dominated Catalysis in Ce-MOF-Supported Pd-Cu Catalysts for Oxidative Carbonylation of Glycerol: Structure Regulation and Electronic Modulation 多金属协同主导的ce - mof负载的Pd-Cu催化剂在甘油氧化羰化反应中的催化作用：结构调控和电子调制

IF 1.8 4区化学

European Journal of Inorganic Chemistry Pub Date : 2026-08-10 Epub Date: 2026-07-05 DOI: 10.1002/ejic.70269

Shuqi Qi, Zhiqiang Liu, Nan Wang, Jing Xu, Pingbo Zhang, Mingming Fan, Pingping Jiang

{"title":"Multimetallic Synergy-Dominated Catalysis in Ce-MOF-Supported Pd-Cu Catalysts for Oxidative Carbonylation of Glycerol: Structure Regulation and Electronic Modulation","authors":"Shuqi Qi, Zhiqiang Liu, Nan Wang, Jing Xu, Pingbo Zhang, Mingming Fan, Pingping Jiang","doi":"10.1002/ejic.70269","DOIUrl":"https://doi.org/10.1002/ejic.70269","url":null,"abstract":"Rational construction of multimetallic MOF catalysts provides an effective strategy to regulate electronic structures and catalytic behavior in glycerol oxidative carbonylation. Using Ce-MOF as the structural framework, a series of Pd-Cu-Ce multimetallic MOF catalysts were constructed by regulating the introduction sequence and loading modes of Pd and Cu. The structure–property–performance relationships among structural characteristics, electronic properties, and catalytic behavior were systematically investigated. Comprehensive characterization results indicate that, in Pd-Cu/Ce-MOF, Pd and Cu are co-doped into the Ce-MOF framework, forming a stable synergistic structure and significantly modulating the electronic environment of the metal sites. X-ray photoelectron spectroscopy (XPS) analysis reveals increased Ce3+ content, surface-adsorbed oxygen, and oxygen vacancy concentration, while the coupled Pd2+/Pd0 and Cu2+/Cu+ redox pairs effectively optimize the electronic structure of Pd active centers. Despite its relatively low surface area, Pd–Cu/Ce-MOF exhibits the highest activity and selectivity in glycerol oxidative carbonylation, indicating that multimetallic synergy dominates catalytic performance. Kinetic studies suggest an Eley–Rideal mechanism, in which glycerol adsorbs on the catalyst surface and gaseous CO directly participates in glycerol carbonate formation. This study provides experimental evidence for the rational design and application of MOF-based multimetallic synergistic catalysts.","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"29 23","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148700060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Circularly Polarized Luminescence and Aggregation Induced Emission of Eu-Based Complexes With High Photoluminescence Quantum Yield 具有高光致发光量子产率的铕基配合物的圆偏振发光和聚集诱导发射

IF 1.8 4区化学

European Journal of Inorganic Chemistry Pub Date : 2026-08-10 Epub Date: 2026-07-11 DOI: 10.1002/ejic.70272

Jie Wang, Zeen Yan, Jiaqiao Li, Fengyan Song, Hongwei Ma, Fei Li, Shu-Yan Yu

{"title":"Circularly Polarized Luminescence and Aggregation Induced Emission of Eu-Based Complexes With High Photoluminescence Quantum Yield","authors":"Jie Wang, Zeen Yan, Jiaqiao Li, Fengyan Song, Hongwei Ma, Fei Li, Shu-Yan Yu","doi":"10.1002/ejic.70272","DOIUrl":"https://doi.org/10.1002/ejic.70272","url":null,"abstract":"The construction of chiral rare-earth-based circularly polarized luminescence (CPL) materials with high photoluminescence quantum yields (PLQY) remains a significant challenge. Herein, we report the rational design and synthesis of two kinds of chiral Eu-based complexes exhibiting exceptional PLQY values. The enantiomeric pairs (R,R)- and (S,S)-(pybox)Eu(p-TPA)3 demonstrated luminescence dissymmetry factors (glum) values of −0.0329 and +0.0241 at 588 nm with solid-state PLQY values of 89% and 91%, respectively. Meanwhile, (R)- and (S)-BPEu(p-TPA)3 exhibited glum values of 0.0169 and −0.0146 at 585 nm, achieving PLQY values of 91% and 93% in the solid state. The high PLQY arises from the synergistic effects of the chiral ligands, which restrict solvent coordination and enhance structural rigidity, thereby suppressing nonradiative decay pathways. This study presents a case where chiral rare-earth-based CPL materials achieve a PLQY of over 90%.","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"29 23","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148699872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

A Mitochondria-Targeting Organotin(IV) Bifunctional Scaffold for Colorectal Carcinoma 线粒体靶向有机锡（IV）双功能支架用于结直肠癌

IF 1.8 4区化学

European Journal of Inorganic Chemistry Pub Date : 2026-08-10 Epub Date: 2026-07-22 DOI: 10.1002/ejic.70273

Min Phin Ng, Wen Xin Toh, Xinchao Li, Pik Kwan Lo, Wai Kit Tang, Siew Huah Lim, Muhammad Faisal Khyasudeen, Wenting Liu, Haihua Xiao, Kun Shang, Chun Hoe Tan, Chee Wei Ang, Wei Chuen Chan, Kae Shin Sim, Kong Wai Tan

{"title":"A Mitochondria-Targeting Organotin(IV) Bifunctional Scaffold for Colorectal Carcinoma","authors":"Min Phin Ng, Wen Xin Toh, Xinchao Li, Pik Kwan Lo, Wai Kit Tang, Siew Huah Lim, Muhammad Faisal Khyasudeen, Wenting Liu, Haihua Xiao, Kun Shang, Chun Hoe Tan, Chee Wei Ang, Wei Chuen Chan, Kae Shin Sim, Kong Wai Tan","doi":"10.1002/ejic.70273","DOIUrl":"https://doi.org/10.1002/ejic.70273","url":null,"abstract":"Metal-based chemotherapeutics were initially established as frontline anticancer agents, but their clinical utility is often limited by systemic toxicity and poor selectivity. To address these challenges, a dimethyltin(IV) complex (SnF4T) was developed using a TPP-functionalized Schiff base ligand, (3-(4-fluorophenyl)(hydroxymethylenehydrazonomethyl)-4-hydroxybenzyl)triphenylphosphonium chloride (F4T), synthesized via a facile condensation reaction. The structures of compounds were characterized by FT-IR, NMR, ESI-MS, and single-crystal X-ray diffraction. Absorption and fluorescence studies demonstrated that SnF4T exhibited fluorescence enhancement upon complexation in organic and aqueous media, confirming its cellular bioimaging potential. In biological assays, F4T and SnF4T showed potent antiproliferative effects against human colorectal cancer cells (HCT 116 and HT-29) with IC50 values <20 µM. Notably, these compounds maintained minimal toxicity toward normal colon fibroblasts (IC50 > 50 µM). Microscopic analysis revealed a dose- and time-dependent loss of epithelial morphology in treated HCT 116 cells. Furthermore, SnF4T was localized within the mitochondria, triggering time-dependent, caspase-mediated apoptosis. These findings proposed dimethyltin(IV) complexes as promising bifunctional organometallic scaffold candidates for colorectal cancer, integrating selective therapeutic action with diagnostic imaging capabilities.","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"29 23","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148699880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Temperature-Driven Nickel Phosphide Phase Transformation and Its Impact on Furfural Hydrogenation Catalysis 温度驱动磷化镍相变及其对糠醛加氢催化的影响

IF 1.8 4区化学

European Journal of Inorganic Chemistry Pub Date : 2026-08-10 Epub Date: 2026-07-11 DOI: 10.1002/ejic.70274

Ayushi Tyagi, Abdulaziz W. Alherz, Bader A. Alayyoub, Saksham Shah, Shruti Thakur, Ananya Sharma, Anil Kumar Sinha, Mahak Dhiman

{"title":"Temperature-Driven Nickel Phosphide Phase Transformation and Its Impact on Furfural Hydrogenation Catalysis","authors":"Ayushi Tyagi, Abdulaziz W. Alherz, Bader A. Alayyoub, Saksham Shah, Shruti Thakur, Ananya Sharma, Anil Kumar Sinha, Mahak Dhiman","doi":"10.1002/ejic.70274","DOIUrl":"https://doi.org/10.1002/ejic.70274","url":null,"abstract":"This study investigates the hydrothermal synthesis of nickel phosphides (NixPy) and the factors governing phase transformation between Ni2P and Ni12P5. We demonstrate that Ni2P forms as the dominant phase at 180 °C with a high phosphorus precursor ratio; however, this phase transforms into Ni12P5 at 210 °C due to the hydrothermal instability of Ni2P at elevated temperatures. Density functional theory (DFT) calculations corroborate this observation, revealing that the higher thermodynamic stability of Ni12P5 is driven by its larger entropy of formation, which renders the Gibbs free energy of Ni12P5 more favorable at elevated temperatures. Catalytic performance was evaluated for both furfural hydrogenation and the hydrogen evolution reaction (HER). Ni2P and Ni12P5 exhibited a similar selectivity-conversion profile in furfural hydrogenation, where furfuryl alcohol (FA) selectivity decreases at higher conversions as over-hydrogenation to tetrahydrofurfuryl alcohol (THFA) becomes dominant. Electrochemical surface area (ECSA) measurements revealed a higher electrochemically active surface area for Ni12P5, which accounts for differences in current density between the two phases. Both phases exhibited comparable Tafel slopes for the HER, indicating a similar reaction mechanism. These findings elucidate the thermal phase behavior of nickel phosphides and highlight their structure-sensitive catalytic properties for both thermocatalytic upgrading and electrocatalytic hydrogen production.","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"29 23","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148699871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Seed-Mediated Overgrowth of Gold Nanorods: Effects of Reducing Agents and Amino Acids 种子介导的金纳米棒过度生长：还原剂和氨基酸的影响

IF 1.8 4区化学

European Journal of Inorganic Chemistry Pub Date : 2026-08-10 Epub Date: 2026-07-11 DOI: 10.1002/ejic.70271

Jitendra K. Sahu

{"title":"Seed-Mediated Overgrowth of Gold Nanorods: Effects of Reducing Agents and Amino Acids","authors":"Jitendra K. Sahu","doi":"10.1002/ejic.70271","DOIUrl":"https://doi.org/10.1002/ejic.70271","url":null,"abstract":"The seed-mediated overgrowth reaction of anisotropic gold nanorod (GNR) has been studied with commonly used weak reducing agents such as ascorbic acid (AA), hydroquinone (HQ), and hydroxylamine (HA) in the presence or absence of amino acids as the stabilizing agents. The HQ and AA mostly show the seed-independent reduction of Au3+ to form aggregated spherical gold nanoparticles (NPs) irrespective of the presence or absence of neutral amino acids. However, basic amino acids can stabilize the newly formed spherical NPs without affecting the morphology of GNR, leading to seed-independent growth. Replacing the reducing agent with HA during the overgrowth reaction yields small snowflake nanoarchitectures via an assembly and merging process. Interestingly, HA-assisted seed-mediated overgrowth, in the presence of basic amino acids, results in the transformation of GNR to a nanodumbbell structure via deposition of the incoming Au0 on the curvature end of GNR. However, larger snowflake structures are formed during a similar reaction with HA in the presence of neutral amino acids due to a greater reduction of Au3+. Varying Au3+ precursor concentrations indicate the formation of a smaller assembly, followed by the merging of GNRs, with both (111) and (200) crystallographic axes present, forming snowflake structures.","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"29 23","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148699953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Imidazolium Modified UiO-67 Metal-Organic Frameworks for CO2 Adsorption 咪唑改性UiO-67金属有机骨架对CO2的吸附

IF 1.8 4区化学

European Journal of Inorganic Chemistry Pub Date : 2026-08-10 Epub Date: 2026-07-12 DOI: 10.1002/ejic.70270

Lisa Eisele, Jakob Blaschke, Shaghayegh Naghdi, Dogukan H. Apaydin, Stephen Nagaraju Myakala, Dominik Eder, Katharina Bica-Schröder

{"title":"Imidazolium Modified UiO-67 Metal-Organic Frameworks for CO2 Adsorption","authors":"Lisa Eisele, Jakob Blaschke, Shaghayegh Naghdi, Dogukan H. Apaydin, Stephen Nagaraju Myakala, Dominik Eder, Katharina Bica-Schröder","doi":"10.1002/ejic.70270","DOIUrl":"https://doi.org/10.1002/ejic.70270","url":null,"abstract":"This study investigates the CO2 sorption properties of the Zirconium-based MOF UiO-67 and its imidazolium-functionalized derivatives (Im-UiO-67-X), focusing on the role of different ions (X = Br−, OAc−, NTf2−) as counterpart to the positively charged imidazolium motifs. Imidazolium groups were introduced via side-chain functionalization of biphenyl dicarboxylate (bpd) linkers. The crystalline materials were synthesized using microwave-assisted methods and characterized by X-ray diffraction, N2 physisorption (77 K), CO2 physisorption (298 K), and diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS). CO2 physisorption experiments (298 K) revealed that pristine UiO-67 exhibits the highest uptake capacity, correlating with its larger accessible surface area, whereas incorporation of imidazolium groups led to partial pore blocking and reduced capacity. Among the modified materials, however, the acetate counterion had the most beneficial effect, yielding an uptake capacity nearly comparable to unmodified UiO-67. DRIFTS studies further indicated that CO2 chemisorption involves interactions with hydroxyl groups of the zirconia clusters. These findings underline the delicate balance between pore accessibility and adsorption capacity in imidazolium-functionalized MOFs. Beyond their potential for CO2 capture, the ability of imidazolium groups to pre-activate CO2 highlights promising opportunities for catalytic applications, such as CO2 conversion and utilization in heterogeneous reaction environments.","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"29 23","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejic.70270","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148700091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0