{"title":"A Pyridine-Containing 3D Metal-Organic Framework for Iodine Capture.","authors":"Chongbo Qi,Yicen Liu,Zhongyue Li,Zhenyu Li,Lei Yang,Yuyu Jia","doi":"10.1021/acs.inorgchem.5c02884","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c02884","url":null,"abstract":"The effective capture of radioactive iodine (I2) is crucial for the sustainable development of nuclear energy. Functionalized metal-organic frameworks have demonstrated broad applicability in gas adsorption, with I2 capture receiving significant attention in recent studies. In this study, we report a pyridine-containing zinc-based MOF (Zn-MOF-bpe) synthesized via a straightforward one-step hydrothermal method. Benefiting from the nitrogen-rich pyridine functionalities, this material exhibits exceptional performance in vapor I2 adsorption with a capacity of 4.49 g g-1 at 75 °C. We investigated the thermal stability of Zn-MOF-bpe, along with its iodine adsorption performance under varying temperature and humidity conditions and its retention capacity and recyclability after I2 adsorption. The results demonstrate the material's outstanding iodine capture performance. Furthermore, the Zn-MOF-bpe/PVP nanofiber membrane was successfully fabricated on porous Al2O3 ceramics using electrospinning technology, demonstrating its effective application in I2 adsorption. The incorporated nitrogen active sites not only enhance the interactions between the adsorbent and I2 but also facilitate the conversion of I2 to polyiodides. The outstanding adsorption performance of Zn-MOF-bpe provides a rational pathway for developing high-efficiency MOF-based I2 capture materials.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"39 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145209242","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}
Zhengyan Lin,Huili Liu,Liling Cao,Ling Huang,Xuehua Dong,Yuqiao Zhou,Daojiang Gao,Ning Ye
{"title":"Deprotonation-Regulated Conformational Switching in Malonates Enables High-Performance Ultraviolet Polar Crystals.","authors":"Zhengyan Lin,Huili Liu,Liling Cao,Ling Huang,Xuehua Dong,Yuqiao Zhou,Daojiang Gao,Ning Ye","doi":"10.1021/acs.inorgchem.5c03880","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c03880","url":null,"abstract":"Polar crystal materials hold significant potential for advanced scientific and technological applications; however, their synthesis remains challenging due to stringent symmetry requirements. In this work, flexible π-conjugated malonate groups with high polarity and diverse conformations were employed as polar functional basic modules (FBMs) to overcome this challenge. Three new crystals, RbLi(C3H2O4)·H2O, Rb2Li(C3H3O4)3·H2O, and C(NH2)3(C3H3O4), were successfully synthesized via a deprotonation-regulated conformational switching strategy. Remarkably, all three compounds crystallize in polar space groups and simultaneously exhibit strong second-harmonic generation responses (1.5-3.0 × KH2PO4 (KDP)), large birefringence (0.043-0.163@546 nm), and short UV cutoff edges (230-244 nm). This study not only discovers three promising UV polar crystals but also elucidates the conformational evolution of malonate-based FBMs, offering valuable guidance for the rational design of new polar crystal materials.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"32 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145209241","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":"Pd(II)-Mediated Si-H Activation of Ortho-Silyl Arylphosphines: Complexes with Pd-Si Bonds and their Utility in Carbon-Carbon Coupling Reactions.","authors":"Amiya Kumar Sahoo,Rageshree Dash,Lapislazuli Chekrain Valappil,Gaurav Jhaa,Suraj Kumar Agarwalla,Chandra Shekhar Purohit,Priyakumari Chakkingal Parambil,Adinarayana Doddi","doi":"10.1021/acs.inorgchem.5c03868","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c03868","url":null,"abstract":"Ortho-silyl arylphosphines bearing Si-R groups (R = H, CH3, Ph) exhibit distinct reactivity profiles when they are bound to transition metals. In this study, a series of Pd(II) square planar complexes featuring silyl phosphine species has been prepared and established their molecular structures. Reactions of phosphines containing Si-H with [Pd(η3-allyl)X2] (X = Cl, Br, and I) afforded square planar Pd(II) complexes of the type [{P,Si}PdX]2 (X = Cl, Br, and I), featuring Pd-Si bonds by Si-H bond cleavage. This set of Si-H bond activation pathways was further analyzed by experimental and computational analysis. Detailed DFT studies revealed two competing mechanistic pathways: a stepwise route involving Si-H oxidative addition and propene elimination, and a ligand-assisted low-barrier pathway (ΔG‡ ≈ 4 kcal/mol), forming a key mononuclear intermediate. The latter route becomes favorable in the presence of excess ligand and rationalizes the experimentally observed complex formation. Substituting Si-H with Si-CH3 alters the reactivity by inhibiting key migratory steps, in agreement with the experimental results. Furthermore, the catalytic performance of one of these palladium complexes was also explored as a molecular catalyst in selective hetero carbon-carbon coupling reactions over Glaser coupling products and prepared a series of alkynes in good to excellent yields.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"10 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145204057","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}
Litun Kumar Pradhan,Ranjay K Tiwari,Manisha Sadangi,J N Behera
{"title":"Synthesis of a Paddlewheel-Based 3D Co-MOF and Its Co3Se4-Derived Composite as an Electrocatalyst for Water Oxidation.","authors":"Litun Kumar Pradhan,Ranjay K Tiwari,Manisha Sadangi,J N Behera","doi":"10.1021/acs.inorgchem.5c03446","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c03446","url":null,"abstract":"Cobalt selenides, such as Co3Se4, are promising electrocatalysts for the oxygen evolution reaction (OER), but their synthesis via pyrolysis is hindered by the redox sensitivity of selenium. Here, we report a strategy to overcome this challenge by employing a three-dimensional (3D) metal-organic framework (MOF), [Co3(BTC)2(Ade)2]·DMF·H2O (Co-BTC-Adenine MOF), as a precursor. The Co-BTC-Adenine MOF, synthesized solvothermally, featured a paddlewheel-type network with one-dimensional (1D) channels and was characterized by single-crystal X-ray diffraction (SCXRD), powder X-ray diffraction (PXRD), and thermogravimetric analysis (TGA). Upon pyrolysis at 600 °C, a Co3Se4-based composite (Co3Se4@600) embedded in an N-doped carbon matrix was obtained. This composite exhibited a low overpotential of 235 mV at 10 mA cm-2, a Tafel slope of 61 mV dec-1, and excellent durability for over 68 h in alkaline media. The enhanced OER performance is attributed to the porous hybrid architecture, improved conductivity, and synergistic interactions between Co3Se4 and the carbon support. This work presented a temperature-controlled route for fabricating robust, nonprecious OER electrocatalysts from MOF precursors.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"26 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145204061","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}
Yu-Xuan Wang,Lin Chen,Tong Xie,Xuan Yu,Chun-Chun Guo,De-Xuan Liu,Guo-Ming Wang
{"title":"Phase-Transition-Induced Photoluminescence Change in Two Hybrid Manganese Halide Crystals.","authors":"Yu-Xuan Wang,Lin Chen,Tong Xie,Xuan Yu,Chun-Chun Guo,De-Xuan Liu,Guo-Ming Wang","doi":"10.1021/acs.inorgchem.5c04200","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c04200","url":null,"abstract":"Much effort has been devoted to rationally manipulating photoluminescence (PL) properties in hybrid metal halides for applications in advanced optical materials. Among them, phase-transition-induced PL change has emerged as a promising approach for efficient PL transformation. However, complicated intermolecular interactions remain challenging, making the underlying mechanisms hard to understand and design. In this work, we present two new organic-inorganic hybrid manganese(II) halides, (C9H13N2)2MnCl4·0.5H2O (1) and (C9H13N2)2MnBr4 (2), which undergo yellow-to-green PL color change with thermally driven phase transitions and recover the initial phase with humid stimulation or recrystallization. Detailed structural analyses revealed that coordination geometry distortion and enhanced intermolecular interactions weaken the crystal field, which results in blue-shifting emission. The diverse structural transformations under multiple stimuli enable applications of 1 and 2 in multilevel information anticounterfeiting. This discovery establishes the interplay between intermolecular interactions and structural deformations in phase-transition-induced PL change, providing valuable insights for the rational design of novel dynamic luminescence materials.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"94 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145204060","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}
Xiaotong Han,Zhihui Yi,Yanfeng Gao,Zhuopeng Wang,Tan Su,Junbiao Wu,Zhiqiang Liang,Jiyang Li
{"title":"Ionic Liquid-Mediated Ionothermal Synthesis of a Multifunctional Photochromic Gallophosphate.","authors":"Xiaotong Han,Zhihui Yi,Yanfeng Gao,Zhuopeng Wang,Tan Su,Junbiao Wu,Zhiqiang Liang,Jiyang Li","doi":"10.1021/acs.inorgchem.5c03694","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c03694","url":null,"abstract":"A multifunctional crystalline gallophosphate, |C10N2H9|[Ga(PO4)(H2PO4)] (NEU26), was synthesized via an ionothermal strategy employing tetrabutylammonium phosphate as a versatile ionic liquid that simultaneously functions as the reaction medium and phosphorus source, while exerting solvent-mediated microenvironment modulation during crystallization. This approach demonstrates, for the first time, the feasibility of constructing photochromic gallophosphate open-frameworks using a nonphotoactive organic template, 4,4'-bipyridine, in combination with a multifunctional ionic liquid to streamline the synthesis. The one-dimensional open-framework of NEU26 exhibits distinct and reversible UV-induced photochromism, attributed to photoinduced electron transfer from inorganic anionic chains to monoprotonated Hbpy+ species, generating tunable colored Hbpy· radicals. Leveraging both its photochromic behavior and intrinsic photoluminescence, NEU26 integrates multiple functionalities, including light-gated fluorescence modulation (on/off ratio of 13:1), UV dosimetry, erasable inkless printing, and anticounterfeiting encryption. This study highlights the synthetic utility of multifunctional ionic liquids in the targeted construction of advanced hybrid frameworks and offers new insights into the rational design of responsive, multifunctional materials.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"44 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145209248","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":"Low Catalytic Redox Activity of α-N-Pyridylthiosemicarbazone Iron Complexes Suggests an Indirect ROS Generation Mechanism in Their Biological Activity.","authors":"Bharath Vinjamuri,Christian R Kowol,Peter Faller","doi":"10.1021/acs.inorgchem.5c03520","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c03520","url":null,"abstract":"α-N-Pyridylthiosemicarbazones (PTSC) are anticancer agents that can induce oxidative stress in cells, likely through interactions with metal ions. Redox-active Cu and Fe bind strongly to PTSC, forming complexes Cu-PTSC and Fe-PTSC2. These complexes have been proposed to directly catalyze the formation of reactive oxygen species (ROS) and deplete key cellular reductants, thereby exerting oxidative stress. Alternatively, oxidative stress could also arise indirectly through interactions with other cellular targets. Evaluating catalytic rates could help distinguish direct from indirect mechanisms, as ROS production should outpace antioxidant defenses. In this respect, the catalytic activity of the Fe complexes of two PTSCs, Triapine (3AP) and Dp44mT, with the two most abundant reducing agents, ascorbate and glutathione, was evaluated under aerobic conditions. Fe-3AP2 and Fe-Dp44mT2 showed very low catalytic activity in depleting GSH/ascorbate and producing ROS (<4 turnovers per hour). Higher activity appeared with H2O2 and ascorbate, but only for 1:1 Fe-PTSC complexes, not 1:2 Fe-PTSC2. Competition assays with H2O2-degrading enzyme catalase revealed that Fe-PTSC reacted 3 orders of magnitude slower than the enzyme. Thus, Fe-PTSC and Fe-PTSC2 are unlikely to drive ROS production through a direct mechanism. Instead, an indirect mechanism or a site-specific ROS production appears to be more plausible.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"2 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145209243","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":"Theoretical Insights into Covalent Interactions between Bowl-Shaped Norcorrole and C60 Fullerene.","authors":"Yijian Ma,Chengshuo Shen","doi":"10.1021/acs.inorgchem.5c03165","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c03165","url":null,"abstract":"In this work, we report covalent and noncovalent interactions between M(II) norcorroles (M = Ni and Zn) and C60. Density functional theory analyses show that the bowl-shaped norcorrole complex supports two distinct binding modes with C60: in a rim orientation, π-π dispersion interactions dominate, whereas in a bottom orientation, the metal center approaches a C-C bond of the fullerene. Energy decomposition and electronic structure analyses confirm weak Zn-C60 covalent bonding in Zn(II) norcorrole. Subsequent studies on the trimer with one norcorrole complex connecting two C60 molecules reveal stronger interactions compared with the Zn(II) norcorrole/C60 dimer. Furthermore, the dynamic behavior of these complexes demonstrates a low energy barrier for norcorrole migration on the C60 surface. These findings enlighten how the positively curved bowl-shaped norcorrole complexes form frameworks with C60, providing a new concept for designing fullerene-based coordination frameworks and supramolecular materials.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"75 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145209270","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":"A Stable Chromium(III) Catalyst for Ring-Opening Alternating Copolymerization of Cyclic Anhydrides/Epoxides under Air.","authors":"Wei-Cheng Ou,Zhi-Kai Shen,Man Wang,Fang-Yi Li,Zhen-Tao Yu","doi":"10.1021/acs.inorgchem.5c02645","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c02645","url":null,"abstract":"The catalytic ring-opening copolymerization (ROCOP) of epoxides and anhydrides offers a promising method for synthesizing diverse polyesters with alternating repeating units and various properties. However, to address critical issues like the limited activity and selectivity of the required catalysts at low loadings, it is crucial to explore more effective catalysts for better control over the production of high-molecular-weight polyesters with narrow molecular weight distributions. Herein, we describe the synthesis and characterization of an air-stable Cr(III) chloride complex, [Cr(L)Cl2]Cl, where L = 2,2'-([2,2'-bipyridine]-6,6'-diyl)bis(propan-2-ol). This complex has been effectively utilized as a catalyst for the copolymerization of propylene oxide (PO) with succinic anhydride (SA) or phthalic anhydride (PA) under mild conditions. When combined with 1.0 equiv of (PPN)Cl as a cocatalyst, the process yielded perfectly alternating polyesters (Mn up to 61 kDa, D̵ below 1.2) with highly selective ester linkages (ester linkages >99%) at high conversion of the cyclic anhydride. Additionally, the polymerization process maintained its effectiveness without requiring extensive drying and purification of commercial monomers or an inert atmosphere, resulting in good performance and preservation of end-group fidelity, even with low catalyst loadings. The study also discussed kinetic studies, copolymer microstructure, and the proposed catalytic mechanism involved in this process.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"157 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145204058","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":"Polyethylenimine-Encapsulated InP-Based Quantum Dots for Living Cell Bioimaging.","authors":"Yanmin Kuang,Yaru Chen,Yuanhong Chu,Luogang Xie,Chengzhou Zhao,Qingyi Xu,Jipeng Zhu,Lijun Guo","doi":"10.1021/acs.inorgchem.5c03612","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c03612","url":null,"abstract":"InP-based quantum dots (QDs) provide an environmentally friendly and feasible substitute for Cd-based QDs with comparable performance in biological applications. The high-quality InP-based QDs made currently with hydrophobic surface ligands are insoluble in aqueous solutions and limit their biomedical applications. Thus, phase transfer to aqueous solutions is crucial for their biological applications. Numerous studies mainly focus on the ligand exchange of QDs, while efficient polymer encapsulation methods are rarely mentioned. In this study, water-soluble InP-based QDs were prepared via a surface modification technique using alkylated polyethylenimine (PEI) as an amphiphilic polymer encapsulant. We have characterized the fundamental physical, chemical, and biological characteristics of water-soluble PEI-encapsulated InP/ZnSe/ZnS QDs (InP/ZnSe/ZnS@PEI). This encapsulation approach can preserve the inherent hydrophobic ligands on the surfaces of the QDs and realize the aqueous solubility. The InP/ZnSe/ZnS@PEI QDs retain their original photoluminescence quantum yield and photon emission characteristics of pristine QDs in organic solvents, ensuring an optimal performance. Furthermore, these water-soluble QDs show potential biocompatibility, low toxicity, and photostability. Notably, they were successfully employed to label HeLa, HepG2 liver cancer cells and HL-7702 healthy liver cells, exhibiting outstanding performance. These findings demonstrate that the InP/ZnSe/ZnS@PEI QDs can serve as a secure and nontoxic probe for bioimaging and other biological applications.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"23 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145209247","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}