Inorganic Chemistry最新文献

{"title":"Polyoxometalate-Based Zinc–Organic Network as a Dual-Site Acid Catalyst for the Conversion of Polyethylene Terephthalate Plastic to Terephthalic Acid","authors":"Qian Liu, Ya-Nan Sun, Wei Yang, Yuan-Yuan Ma, Jing Du, Zhan-Gang Han","doi":"10.1021/acs.inorgchem.5c00408","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00408","url":null,"abstract":"Chemical depolymerization and recycling of poly(ethylene terephthalate) (PET) constitute a sustainable, resource-efficient, and environmentally beneficial approach, which requires the development of efficient heterogeneous catalysts. Herein, polyoxometalate(POM)-based zinc–organic networks were synthesized as dual-site acid catalysts for the alcoholysis of PET into the value-added terephthalic acid (TPA) product, with formulas of [Zn₂(μ₂-Cl)(H₂O)₂(DTAB)₃][PW₁₂O₄₀]·4H₂O (<b>1</b>), [Zn₂(DTAB)₄][SiW₁₂O₄₀]·4H₂O (<b>2</b>), and [Zn₂(H₂O)₄(DTAB)_2.5][HBW₁₂O₄₀]·8H₂O (<b>3</b>) (DTAB = 1,4-di(4<i>H</i>-1,2,4-triazol-4-yl)benzene). Structural analysis showed that compounds <b>1</b> and <b>2</b> were composed of 2D Zn-ligand networks embedded POM clusters in an “egg-in-a-box” manner and that compound <b>3</b> consisted of a 3D POM-based host–guest framework constructed by {Zn₂(H₂O)₄(N-N)₃} units and [HBW₁₂O₄₀]^4– clusters. Three compounds incorporate the Zn²⁺ Lewis acid centers and heteropolytungstate clusters, having the acid strength order compound <b>3</b> &gt; compound <b>1</b> &gt; compound <b>2</b>. When employed as dual-site acid catalysts, the three compounds exhibited efficient catalytic performance for PET alcoholysis into TPA with &gt;92% conversion rate and &gt;94% selectivity of the TPA product, along with excellent recyclability and structural stability. This work offers a novel perspective for the development of POM-based heterogeneous catalysts in the upcycling of plastic waste.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"32 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143849911","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":"Phase-Matching Second-Harmonic Generation in Zero-Dimensional Zinc Thiocyanates Ligated with Chiral Amino Acids","authors":"Qinglan Zhong, Gangji Yi, Juan Cheng, Xin Wang, Guohong Zou, Ling Huang, Zhien Lin","doi":"10.1021/acs.inorgchem.5c01052","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c01052","url":null,"abstract":"Two organic–inorganic hybrid solids, namely, Zn(SCN)₂(L-C₉H₁₁NO₂)₂ (<b>1</b>) and Zn₄(SCN)₄(L-C₅H₈NO₃)₄(H₂O)₄ (<b>2</b>), were synthesized by incorporating chiral amino acids into the zinc thiocyanate system. Compound <b>1</b> crystallizes as a monomeric complex in the noncentrosymmetric space group <i>P</i>2₁, while compound <b>2</b> features a circular tetrameric structure crystallized in the noncentrosymmetric space group <i>P</i>2₁2₁2. Both compounds exhibit phase-matching second-harmonic generation (SHG) responses, which are 1.4 and 3.1 times that of KH₂PO₄, respectively. Theoretical calculations were conducted to determine the source of their SHG responses.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"4 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143841147","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":"Magneto-Structural Characterization of Heterometallic NiII2MnII2/NiII2CoII2 Cubane Complexes with a Compartmental Ligand","authors":"Anangamohan Panja, Erik Čižmár, Narayan Ch. Jana, Paula Brandão, Rakhi Nandy","doi":"10.1021/acs.inorgchem.4c05065","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.4c05065","url":null,"abstract":"We report a combined experimental and theoretical magneto-structural study of four heterometallic isostructural complexes: [Ni₂Mn₂(L)₂(OAc)₂{N(CN)₂}]·5H₂O (<b>1</b>), [Ni₂Mn₂(L)₂(OAc)₂(N₃)₂]·MeCN (<b>2</b>), [Ni₂Mn₂(L)₂(OAc)₂(NCS)₂]·H₂O (<b>3</b>), and [Ni₂Co₂(L)₂(OAc)₂(NCS)₂]·4H₂O (<b>4</b>). These complexes were synthesized using a compartmental Schiff base ligand, <i>N,N</i>′-bis(3-methoxy-5-methylsalicylidene)-2,2-dimethyl-1,3-diaminopropane (H₂L), and various pseudohalide ions. X-ray crystallography reveals cubane-like structures featuring a {Ni₂M₂(μ₃-O)₄} (M = Mn or Co) core. The Ni^II centers invariably exhibit octahedral geometry, while Mn^II and Co^II ions adopt hepta-coordinated pentagonal bipyramidal geometries. Magnetic studies, ab initio calculations, and BS-DFT analyses reveal competing ferromagnetic (FM) and antiferromagnetic (AFM) exchange interactions. The heterometallic exchange via an additional μ-O,O′-acetate ligand is FM, contrasting with mostly AFM interactions through the two μ₃-O bridges. Ni^II ions in <b>1–4</b> display moderate easy-plane single-ion anisotropy, while complex <b>4</b> uniquely features hepta-coordinated Co^II ions with eas<i>y</i>-axis anisotropy of <i>D</i>_Co ≈ −23 cm^–1. Moreover, a field-induced slow magnetic relaxation was observed in <b>4</b>, governed by a direct relaxation process. Notably, this is the first report of a Ni₂Mn₂ cubane structure, with only one prior example of a Ni₂Co₂ cubane complex in the literature. Thus, this study uncovers the magneto-structural properties of rare Ni₂Mn₂ and Ni₂Co₂ systems while highlighting <b>4</b> as a unique case of hepta-coordinated Co^II ions with significant eas<i>y</i>-axis anisotropy and slow magnetization relaxation, enriching the molecular magnetism landscape.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"4 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143841148","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":"Characterization of the Corrosion Layer onto Stoichiometric Uranium Oxide Created by Liquid Sodium toward a Kinetic Modeling","authors":"Concettina Andrello, Loic Favergeon, Lionel Desgranges, Daniel Freis","doi":"10.1021/acs.inorgchem.5c00242","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00242","url":null,"abstract":"We studied two scenarios of the interaction between uranium dioxide and liquid sodium in conditions similar to in-reactor conditions for defective fuel pins in contact with sodium: scenario 1 with a constant oxygen potential and scenario 2 with a given starting amount of oxygen. The samples after interaction were characterized by X-ray diffraction, grazing incidence X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and transmission electron microscopy. The experimental results show that the reaction between liquid sodium containing dissolved oxygen and stoichiometric UO₂ leads to the production of a corrosion layer, which develops uniformly on the surface without any dependence upon UO₂ grain orientation or grain size. Depending on the oxygen feeding, the crystallographic phases of the corrosion layer change. If trisodium uranate Na₃UO₄ is the only phase obtained in scenario 2, for the first time, it is observed that both Na₃UO₄ and NaUO₃ phases are formed within the corrosion layer in scenario 1.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"37 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143846463","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":"Weak Chemical Bonds and High Electrical Conductivities Lead to High Thermoelectric Performance in Zintl Compounds Sr2CdX2 (X = As, Sb, and Bi)","authors":"Zhongjuan Han, Jinbao Wang, Chengwei Zhang, Zhonghao Xia, Jiangang He","doi":"10.1021/acs.inorgchem.5c00031","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00031","url":null,"abstract":"Zintl semiconductors are known to exhibit exceptional thermoelectric properties, due to their high electron transport and low lattice thermal conductivity (κ_L). In this work, thermoelectric properties of Zintl compounds Sr₂CdX₂ (X = As, Sb, Bi) were studied by using first-principles calculations in conjunction with Boltzmann transport theory. Both Sr₂CdSb₂ and Sr₂CdBi₂ adopt the same structure as Sr₂CdAs₂ (<i>Cmc</i>2₁) and are synthesizable. All of these compounds demonstrate low lattice thermal conductivities, ranging from 2.3 to 0.5 Wm^1– K^–1 at 300 K, attributed to their low sound velocity and significant three-phonon scattering, which originate from the weak chemical bonds and strong interaction between acoustic phonons and low-lying optical phonons. The low polar-optical phonon scattering is a result of the relatively small contributions of ions to dielectric constants. Notably, the electrical conductivities (σ) and κ_L of these compounds exhibit significant anisotropy, with the highest and lowest values being along the <i>x</i>- and <i>z</i>-axis, respectively. Consequently, the highest <i>ZT</i> values of Sr₂CdAs₂ (1.39), Sr₂CdSb₂ (1.97), and Sr₂CdBi₂ (1.74) are achieved along the <i>x</i>-direction at 800 K under n-type doping, respectively, which is comparable or even superior to the well-studied thermoelectric material Mg₃Sb₂, positioning them as promising candidates for thermoelectric applications.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"4 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143841146","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 Monoclinic Variant of ThCr2Si2-Type BaAg2Sb2: Electronic Structure and Physical Properties","authors":"Hanlin Wu, Wenhao Liu, Nikhil Dhale, Pawan Koirala, David Leif Israel Scherm, Xiqu Wang, Wei-Cheng Lee, Bing Lv","doi":"10.1021/acs.inorgchem.4c04486","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.4c04486","url":null,"abstract":"A monoclinic variant of the ThCr₂Si₂-type structure of BaAg₂Sb₂, with the Pearson symbol <i>mC</i>10, has been discovered. Its crystal structure was determined by single-crystal X-ray diffraction, with space group <i>C</i>2/<i>m</i> (No. 12), and lattice parameters <i>a</i> = 12.441(4) Å, <i>b</i> = 4.790(2) Å, <i>c</i> = 4.876(2) Å, <i>β</i> = 112.88(1)°, and <i>V</i> = 268.8(6) ų. It features tetragonally coordinated Ag₂Sb₂ layers that are distorted and stacked along the crystallographic <i>a</i>-axis, with a strong interlayer Sb–Sb bond. Transport measurements reveal a non-negligible magnetoresistivity of up to 18%, with cusp-like behavior. Electron-dominated charge carriers over a broad temperature range are also verified by Hall measurements. Moreover, temperature-dependent resistivity behavior exhibits a small deviation from the conventional Bloch-Grüneisen model, which is likely due to the brink of a possible Lifshitz transition, as revealed by first-principles calculations.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"108 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143846465","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":"High-Efficiency Green-Emission of an Organophosphorus Manganese Chloride for White LED and X-ray Imaging Applications","authors":"Fu Wang, Xia Zeng, Lingyi Meng, Lingxia Jin, Zuobin Tang, Hu Liu, Huidong Xie","doi":"10.1021/acs.inorgchem.5c00002","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00002","url":null,"abstract":"Manganese halides are emerging as promising alternatives to traditional inorganic phosphors and X-ray scintillators due to their low toxicity, high attenuation coefficients, high light yield, and cost-effective solution-processability. We synthesized a novel manganese chloride, (4CTP)₂MnCl₄ (4CTP = (4-chlorobenzyl)triphenylphosphonium), via solvent volatilization. The crystal exhibits a narrow-band (∼48 nm) green emission at 516 nm under ultraviolet or blue light excitation, attributed to the Mn²⁺ d-d transition, with a photoluminescence quantum yield (PLQY) of 95.7% and a nearest Mn···Mn distance of 9.909 Å. A white light-emitting diode (LED) for backlight displays was fabricated using (4CTP)₂MnCl₄, a 450 nm blue LED chip, and K₂SiF₆: Mn⁴⁺, achieving a color gamut of 112.1% at 20 mA. Substituting the red phosphor with (Sr, Ca)AlSiN₃: Eu²⁺ produced a white LED for solid-state lighting with a color rendering index (CRI) of 92.4 and a correlated color temperature (CCT) of 4097 K. The crystal also demonstrated excellent X-ray scintillation properties (a light yield of 63,400 photons/MeV). A flexible (4CTP)₂MnCl₄@PMMA film enabled high-resolution X-ray imaging (10.4 lp/mm). This work showcases a simple route to develop high-performance manganese halides for LEDs and X-ray imaging.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"4 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143837376","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":"Synthesis and Characterization of Copper(I) Halide Heteroleptic Complexes with Thermally Activated Delayed Fluorescence","authors":"Yuting Zhu, Xiaofei Kuang, Ting-Ting Li, Chen-Lu Hou, Hui Yang, Can-Zhong Lu","doi":"10.1021/acs.inorgchem.5c00733","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00733","url":null,"abstract":"In the global context of green chemistry and sustainable development, luminescent copper(I) halide complexes hold broad applications, attributed to their abundant resources and excellent photophysical properties. Herein, two novel copper(I) halide complexes were synthesized and systematically investigated using single-crystal X-ray diffraction, photophysical characterization, and theoretical calculations among other methods. Both solid-state complexes exhibit bright green luminescent emissions with low self-absorption rates. The photoluminescence quantum yields (PLQYs) are as high as 95% and 87%, respectively. Because their singlet–triplet energy gaps (Δ<i>E</i>_ST) are very small, both being 0.10 eV, these complexes can achieve thermally activated delayed fluorescence emission through efficient reverse intersystem crossing. Theoretical calculations revealed that their high-efficiency luminescence arises from the synergistic effects of metal-to-ligand charge transfer, halogen-to-ligand charge transfer, and ligand-to-ligand charge transfer.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"16 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143841217","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":"H-Radical Reactive Infrared Laser Deposition of LiH: A Method for Growing High-Quality Metal Hydride Epitaxial Films","authors":"Kota Munefusa, Erika Fukushi, Takayuki Harada, Hiroyuki Oguchi","doi":"10.1021/acs.inorgchem.4c05449","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.4c05449","url":null,"abstract":"We present a new film growth method designed specifically for growing metal hydride thin films that we name “H-radical reactive infrared laser deposition”. This approach leverages hydrogen radicals (H·) to achieve rapid and complete metal hydrogenation, leading to high-purity hydride phases. We demonstrate the effectiveness of this method through the growth of LiH epitaxial thin films, where the H· supply eliminates Li precipitates and enhances crystallinity. Additionally, the use of an infrared laser minimizes film–substrate reactions, reducing the level of impurity formation. To explore the material tunability of this method, we successfully controlled film orientation and achieved Mg doping in LiH. Our findings establish H-radical reactive infrared laser deposition as a promising method for fabricating high-quality metal hydride thin films with tailored properties.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"60 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143841204","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":"Selective H/D Exchange in E–H (E = Si, Ge, Sn) Bonds Catalyzed by 1,2,3-Triazolylidene-Stabilized Nickel Nanoparticles","authors":"Pablo Molinillo, Ana Gálvez Del Postigo, Maxime Puyo, Florencia Vattier, Ana M. Beltrán, Nuria Rendón, Patricia Lara, Andrés Suárez","doi":"10.1021/acs.inorgchem.5c00216","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00216","url":null,"abstract":"Nickel nanoparticles (Ni·MIC) stabilized with mesoionic 1,2,3-triazolylidene (MIC) ligands were prepared via decomposition of the [Ni(COD)₂] (COD = 1,5-cyclooctadiene) complex with H₂ (3 bar) in the presence of 0.2 or 0.5 equiv of ligand. The obtained monodisperse and small-sized (3.2–3.8 nm) nanoparticles were characterized by high-resolution transmission electron microscopy (TEM, HRTEM) and inductively coupled plasma (ICP) analysis. Further analysis of the nickel nanoparticles by X-ray photoelectron spectroscopy (XPS) demonstrated the coordination of the MIC ligands to the metal surface. Finally, the Ni·MIC nanoparticles were applied in the isotopic H/D exchange in hydrides of group 14 elements (Si, Ge, Sn) using D₂ gas under relatively mild conditions (1.0–1.8 mol % Ni, 1 bar D₂, 55 °C). High and chemoselective deuterium incorporation at the E–H (E = Si, Ge, Sn) bond in these derivatives was observed.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"8 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143841206","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}