Jiada Fan, Haorong Jiao, Hui Cai, Jialiang Xu, Jiabin Cui
{"title":"Primary Alkyl Amine-Mediated ZnSe@ZnS QDs from Giant Flowers to Nanorods","authors":"Jiada Fan, Haorong Jiao, Hui Cai, Jialiang Xu, Jiabin Cui","doi":"10.1021/acs.inorgchem.5c01870","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c01870","url":null,"abstract":"Understanding the relationship between surface ligands and colloidal quantum dots (QDs) is crucial for precisely controlling their size, morphology, and composition. Compared to traditional Cd- or Pb-based II–VI QDs, the precise synthesis of zinc-based colloidal ZnSe@ZnS QDs remains challenging due to zinc’s high oxytropism and diffusion tendencies. Herein, we introduce a primary alkyl amine-mediated surface engineering strategy that enables morphology control: from giant flowers and clovers to branches and nanorods (NRs). Fine structural analysis and theoretical calculations reveal that ligand affinity and low adsorption energy promote rod-shaped growth. From both fundamental and industrial perspectives, it is essential to explore the underlying mechanisms and inherent properties that influence these processes. Such insights will enhance the potential applications of these materials in photocatalysis, sensing, and illumination.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"44 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144183842","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}
Zihao Zhao, Yi Liu, Qingshun Fan, Hao Rong, Haojie Xu, Huaimin Ni, Jingtian Zhang, Xianmei Zhao, Junhua Luo, Zhihua Sun
{"title":"Controllable Photoluminescence Modulation of 2D Hybrid Perovskite Single-Phase Derivatives via Inorganic Skeleton Thickness Regulation","authors":"Zihao Zhao, Yi Liu, Qingshun Fan, Hao Rong, Haojie Xu, Huaimin Ni, Jingtian Zhang, Xianmei Zhao, Junhua Luo, Zhihua Sun","doi":"10.1021/acs.inorgchem.5c00774","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00774","url":null,"abstract":"The modulation of photoluminescence (PL) properties has great application prospects in the optical and photoelectric fields. Two-dimensional hybrid perovskites exhibit exceptional structural tunability and superior optoelectronic properties, making them promising for advanced photoluminescent applications. However, synthesizing pure multilayer single crystals remains challenging, hindering precise PL modulation. Herein, a series of two-dimensional hybrid perovskite single crystals (<i>i</i>-BA)<sub>2</sub>MA<sub><i>n</i>–1</sub>Pb<sub>n</sub>Br<sub>3<i>n</i>+1</sub> (where <i>i</i>-BA = isobutylammonium, MA = methylammonium, and <i>n</i> = 1–4 expressed as <b>n1</b>–<b>n4</b>) with varying inorganic framework thicknesses were synthesized. Interestingly, a red shift of PL in these homologues was observed with the change in color from white (<i>n</i> = 1) to green (<i>n</i> = 4); the emission wavelengths were tuned from 430 to 528 nm. Notably, the PL quantum yields increased as the inorganic layer thickness increased from <i>n</i> = 2 to <i>n</i> = 4. Furthermore, we developed green light-emitting devices and polydimethylsiloxane (PDMS)-based flexible luminescent patterns through employing the pure <b>n4</b> phase. These findings highlight the pivotal role of structural tuning in modulating PL and demonstrate the potential of these single-phase derivatives for advancing solid-state lighting applications.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"1 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144183724","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}
David D. Hebert, Ankita Puri, Daniel Ye, Allison McAninch, Amanda Chisholm, Maxime A. Siegler, Marcel Swart, Isaac Garcia-Bosch
{"title":"Synthesis and Characterization of Copper Complexes Featuring a Redox-Active ONO Ligand in Three Molecular Oxidation States","authors":"David D. Hebert, Ankita Puri, Daniel Ye, Allison McAninch, Amanda Chisholm, Maxime A. Siegler, Marcel Swart, Isaac Garcia-Bosch","doi":"10.1021/acs.inorgchem.5c01578","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c01578","url":null,"abstract":"In this research article, we report the synthesis, characterization, and reactivity of a family of Cu complexes bearing a tridentate iminosemiquinone ligand and ancillary amine ligands ((<sup>sq</sup>ONO)Cu<sup>II</sup>(L)<i><sub>n</sub></i>, <i>n</i>: 1 or 2). The complexes were obtained following a one-pot synthetic protocol by mixing Cu<sup>II</sup>, 3,5-di-<i>tert</i>-butylcatechol, and aqueous ammonia in the presence of an amine base. The Cu complexes were structurally characterized by single-crystal X-ray diffraction analysis (SC-XRD). Cyclic voltammetry measurements showed that the Cu complexes reached three molecular oxidation states in a reversible fashion. The reaction between the Cu-iminosemiquinone complex (<sup>sq</sup>ONO)Cu<sup>II</sup>(L) with cobaltocene (1e<sup>–</sup> donor) and ferrocenium (1e<sup>–</sup> acceptor) produced the corresponding reduced and oxidized complexes. Structural and spectroscopic characterization (SC-XRD, UV–vis, and EPR) of the Cu complexes in the three oxidation states, namely, [(<sup>cat</sup>ONO)Cu<sup>II</sup>(L)]<sup>−</sup>, (<sup>sq</sup>ONO)Cu<sup>II</sup>(L), and [(<sup>bq</sup>ONO)Cu<sup>II</sup>(L)]<sup>+</sup>, suggest that the redox events are ligand-based. DFT computations also formulated the complexes as Cu<sup>II</sup> species with the ONO ligand in different oxidation states. For the Cu<sup>II</sup>-iminosemiquinone complexes, we calculated small energetic differences between their singlet and triplet states (<i>S</i> = 0 vs <i>S</i> = 1), which explain their magnetic behavior in solution. Our results provide evidence of how Cu-radical metalloenzymes might tune their electronic structure to modulate their reactivity.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"48 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144177248","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":"Irradiation-Assisted Functionalization of Hierarchically Porous Boron Nitride for Ultrafast Uranium Removal from Radioactive Sewage","authors":"Peng Zhang, Yifan Li, Ziwen Tang, Weichao Feng, Zengyuan Li, Mingzhang Lin, Fuyou Fan, Guirong Cao, Duoqiang Pan, Wangsuo Wu","doi":"10.1021/acs.inorgchem.5c00143","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00143","url":null,"abstract":"Decontamination of uranium (U) from radioactive sewage is crucial for sustainable development of the nuclear industry and human health. In order to develop a high-performance adsorbent for efficient U removal from radioactive sewage, terpyridine (TPy)-functionalized hierarchically porous boron nitride (HPBN-TPy) was prepared by feasible irradiation-assisted functionalization. The pretreatment of HPBN by γ irradiation is the key of functionalization for introducing active defect sites in inert boron nitride (BN). On this basis, amino and terpyridine functionalization was carried out successively. Large specific surface area and TPy groups with strong affinity for U resulted in high adsorption amount; the investigation of mechanism confirmed that TPy groups adsorbed U through the chelation of three pyridine moieties to one UOuman health. In order to develop a high-performance adsorbent for efficient U removal from radioactive sewage, terpyridine (TPy)-functionalized hierarchically porous boron nitride (HPBN-TPy) was prepared by feasible irradiation-assisted functionalization. The pretreatment of HPBN by γ irradiation is the key of functionalization for introducing active defect sites in inert boron nitride (BN). On this basis, amino and terpyridine functionalization was carried out successively. Large specific surface area and TPy groups with strong affinity for U resulted in high adsorption amount; the investigation of mechanism confirmed that TPy groups adsorbed U through the chelation of three pyridine moieties to one UO<sub>2</sub><sup>2+</sup> ion. Abundant hierarchical mesopores provided a sufficient mass transfer channel for U, which together with low mass transfer resistance from the small size of TPy groups caused the ultrafast adsorption kinetics for U, and adsorption reached equilibrium within 30 s. Moreover, HPBN-TPy displayed outstanding adsorption selectivity, irradiation resistance, and reusability, which endowed HPBN-TPy with great prospects for industrial removal of U from radioactive sewage. This study offered an efficient method for the efficient functionalization of inert BN materials and provided new insight for U removal from radioactive sewage.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"34 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144177156","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}
Changhoon Lee, Taesu Park, Hyun-Joo Koo, Jae-Hoon Park, Ji Hoon Shim, Myung-Hwan Whangbo
{"title":"Magnetic Anisotropy and Jahn–Teller Distortion of Itinerant Ferromagnets with Cubic Structures","authors":"Changhoon Lee, Taesu Park, Hyun-Joo Koo, Jae-Hoon Park, Ji Hoon Shim, Myung-Hwan Whangbo","doi":"10.1021/acs.inorgchem.5c01136","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c01136","url":null,"abstract":"An itinerant ferromagnet with a cubic structure such as α-Fe has no uniaxial magnetism, while uranium monosulfide US has the strongest-known uniaxial magnetism despite its cubic structure. We probed the cause for this difference by density functional theory (DFT) calculations for α-Fe, FeNi, and US to determine their magnetocrystalline anisotropy energies (MAEs), partial density of states (PDOS) plots, and pair polarization indexes (i.e., the strengths of the pair polarizations), Δ<i>p</i>. By comparing these results with those already reported for MnAl and SmCo<sub>5</sub>, we find that the MAEs of these itinerant ferromagnets increase in the order, α-Fe < FeNi < MnAl < SmCo<sub>5</sub> < US, and so do their Δ<i>p</i> values, revealing that US and α-Fe differ in their uniaxial magnetism due to the large difference in their pair polarizations. We also investigated the possibility for pair polarization to induce Jahn–Teller instability by analyzing the weak cubic-to-rhombohedral distortion of US that accompanies its ferromagnetic transition at 177 K to show that this is indeed a weak Jahn–Teller distortion. The absence of such a Jahn–Teller instability in other permanent magnets was ascribed to the weak covalent character of their interatomic bonds.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"14 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144177157","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}
Jun-Feng Wang, Shen-Shen Wang, Qi-Meng Liu, Xiao-Yan Tang, Dong Liu
{"title":"Stepwise Structural Transformations of Coordination Polymers Caused by Ligands Replacements and Solid-State Photoreaction","authors":"Jun-Feng Wang, Shen-Shen Wang, Qi-Meng Liu, Xiao-Yan Tang, Dong Liu","doi":"10.1021/acs.inorgchem.5c01464","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c01464","url":null,"abstract":"The structural transformations of coordination polymers not only contribute to structural diversity but also provide design strategies at the molecular level for developing a new generation of smart materials. In this work, a photoinert olefin-containing coordination chain {[Zn(H<sub>2</sub>O)(5-NO<sub>2</sub>-1,3-BDC)(3,3′-dpe)]<sub>2</sub>·H<sub>2</sub>O}<i><sub>n</sub></i> (<b>1</b>) was prepared by the hydrothermal reaction between Zn(NO<sub>3</sub>)<sub>2</sub>·6H<sub>2</sub>O, 1,2-di(pyridin-3-yl)ethene (3,3′-dpe), and 5-nitro-1,3-benzenedicarboxylic acid (5-NO<sub>2</sub>-1,3-H<sub>2</sub>BDC). After replacing the 5-NO<sub>2</sub>-1,3-H<sub>2</sub>BDC ligand in the solution of <b>1</b> with 5-methyl-1,3-benzenedicarboxylic acid (5-Me-1,3-H<sub>2</sub>BDC), a unique two-dimensional photoreactive coordination network [Zn(5-Me-1,3-BDC)(3,3′-dpe)]<i><sub>n</sub></i> (<b>2</b>) was formed. When exposed to UV light, <b>2</b> can undergo a [2 + 2] photocycloaddition reaction to produce [Zn(5-Me-1,3-BDC)(<i>rctt</i>-3,3′-tpcb)<sub>0.5</sub>]<i><sub>n</sub></i> (<b>3</b>, 3,3′-tpcb = 1,2,3,4-tetra(pyridin-3-yl)cyclobutane) via single-crystal-to-single-crystal (SCSC) transformation. By replacing the 5-Me-1,3-BDC ligand in the solution of <b>3</b> with 5-NO<sub>2</sub>-1,3-H<sub>2</sub>BDC, a three-dimensional framework of {[Zn<sub>2</sub>(5-NO<sub>2</sub>-1,3-BDC)<sub>2</sub>(<i>rtct</i>-3,3′-tpcb)]·2H<sub>2</sub>O}<i><sub>n</sub></i> (<b>4</b>) can be obtained. Accompanied by the in situ solid-state photoreaction, <b>2</b> exhibits intriguing photocontrolled fluorescence behavior, making it a promising smart material for applications in fluorescence sensors, super-resolution imaging, and optical anticounterfeiting.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"37 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144183786","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":"Delineating the Effects of Counterions on the Structural and Vibrational Properties of U(IV) Lindqvist Polyoxometalate Complexes","authors":"Primadi J. Subintoro, Korey P. Carter","doi":"10.1021/acs.inorgchem.5c00033","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00033","url":null,"abstract":"Herein we conducted a full investigation into the fundamental structural and vibrational properties of uranium(IV) Peacock–Weakley-type lacunary Lindqvist (W<sub>10</sub>) polyoxometalate (POM) complexes. We recently demonstrated the importance of the secondary lattice elements in tuning the distortion of the D<sub>4d</sub> symmetry in W<sub>10</sub> POM complexes, and here, we synthesized eight UW<sub>10</sub> complexes with different alkali metal counterions and evaluated how the composition and packing of counterion species affected complex structural and vibrational properties. Single-crystal X-ray diffraction analysis on complexes <b>1–8</b> revealed changes in structural distortion parameters as a function of differences in counterion configurations, while far-infrared and Raman spectra for <b>1</b>–<b>8</b> also demonstrated that vibrational mode frequencies were sensitive to changes in counterion composition and packing. To more effectively compare different counterion configurations, we developed counterion effective ionic radius (eIR) as a new structural parameter, and comparisons between structural distortion parameters and eIR values strongly suggested that modulation by the secondary lattice elements can affect structural and vibrational manifolds within POM complexes. Partial least squares (PLS) analysis was used to quantitatively evaluate correlations observed within this investigation, and PLS statistical models showed a strong correlation between counterion eIR and both structural distortion parameters and vibrational mode frequencies.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"71 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144177155","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":"Coupling Dimethylglyoxime to Enhance Coordination Bonds of Pd Single-Atom Catalyst for Solving Stability and Activity Conflict","authors":"Junxiang Lu, Yuting Liu, Shasha Zhang, Juhong Nie, Bing Tang, Jia Guan, Jian Zhang","doi":"10.1021/acs.inorgchem.5c01615","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c01615","url":null,"abstract":"Regulating the strength of coordination bonds plays an important role in synergizing the activity and stability of single-atom catalysts (SACs) but is often limited due to coordination atoms from the inorganic carrier lattice being tough to modify. It is fascinating yet rarely explored to immobilize organic molecules on lattice atoms for modulating the character of coordination bonds. Herein, a valid inorganic–organic coupling strategy is developed to enhance Pd–O coordination bonds within Pd-SAC for reconciling activity and stability. Nickel hydroxide enriched with Ni<sup>2+</sup> vacancies is utilized to bind Pd centers, and dimethylglyoxime (DMG) bonds with its OH groups by H<sub>2</sub> reduction, forming a Pd–O-DMG structure. Compared with the pristine Pd–O structure, whose activity descends greatly during the recycling process, the Pd–O-DMG structure makes the activity unchanged after 6 used times for the Suzuki–Miyaura reaction. The Pd-SAC has mild and economic reaction conditions (at 70 °C under air in ethanol without excess base) and good substrate tolerance. Further theoretical calculations show that coupled DMG induces hydrogen bonds on O atoms of the oxazole around Pd centers and thus strengthens Pd–O coordination bonds to exhibit good stability and activity.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"51 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144177158","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":"AIE-Active Zr-Organic Gels for Luminescent Solar Concentrators.","authors":"Haijiang Bian, Zipeng Wang, Qiang Jing, Haiguang Zhao, Zhe Zhang, Jianxin Song, Yuanqian Ai, Jing Ding, Xianjun Guo, Chao Wang, Wei Liu","doi":"10.1021/acs.inorgchem.5c01166","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c01166","url":null,"abstract":"<p><p>Luminescent metal-organic gels (MOGs) have emerged as a novel class of soft materials characterized by their unique metal-ligand coordination frameworks, which endow them with high functionalization, plasticity, and chemical stability. This study introduces a zirconium-based organic gel (Zr-Gel) exhibiting aggregation-induced emission (AIE), readily synthesized on a large scale via a straightforward solvothermal route. The as-synthesized Zr-Gel exhibits a broader excitation range and higher excitation intensity than pure H<sub>4</sub>ETTC ligand, with a Stokes shift of approximately 0.50 eV and a high quantum yield of 84.24%. In contrast to metal-organic framework (MOF) materials composed of the same ligand and metal, the Zr-Gel retains a high fluorescence quantum yield even at excitation wavelengths down to 300 nm. Such exceptional properties make them highly promising as fluorescent materials for optoelectronic devices. As a proof of concept, we fabricated Zr-Gel-based filled luminescent solar concentrators (LSCs) that achieved an optical conversion efficiency (η<sub>opt</sub>) of 1.70% under simulated sunlight illumination (100 mW cm<sup>-2</sup>). For comparison, coated LSCs based on PCN-94 and PCN-128 were also prepared, further validating the superior performance of Zr-Gel and highlighting the significant potential of MOGs for LSC applications.</p>","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":" ","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144186067","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}
Zhaohui Huang, Xiaoli Wang, Peng Du, Chuanqi Feng, Ping Niu, Dongmei Xu, Lumin Wang, Wei Gao, Aixin Song
{"title":"Tetracoordinated Manganese(II) Halide with Multimode Thermochromic Luminescence for Anticounterfeiting and Encryption","authors":"Zhaohui Huang, Xiaoli Wang, Peng Du, Chuanqi Feng, Ping Niu, Dongmei Xu, Lumin Wang, Wei Gao, Aixin Song","doi":"10.1021/acs.inorgchem.5c00833","DOIUrl":"https://doi.org/10.1021/acs.inorgchem.5c00833","url":null,"abstract":"Manganese(II) halides have received a booming development owing to their flexible structures and remarkable optical properties, whereas those with multimode luminescence color changes under specific stimuli are rarely reported. In this study, we synthesized a zero-dimensional (C<sub>5</sub>H<sub>14</sub>NO)<sub>2</sub>MnBr<sub>4</sub> single crystal, which experiences an order–disorder phase transition from <i>P</i>2<sub>1</sub>/<i>c</i> to <i>P</i>2/<i>m</i> at 268 K. Intriguingly, the emission color of (C<sub>5</sub>H<sub>14</sub>NO)<sub>2</sub>MnBr<sub>4</sub> exhibits a “symmetric” switching of green–yellow–orange–red–orange–yellow–green within the temperature range of 80–420 K. For the low-temperature phase (LTP) below 268 K, the green and red lights at 510 and 640 nm are derived from the <i>d</i>–<i>d</i> electron transition of Mn(II) and the emission of self-trapped excitons (SETs), respectively. For the high-temperature phase (HTP) above 268 K, the dual emission peaks at 530 and 640 nm can be attributed to the simultaneous existence of trapping and detrapping processes of the STEs. Taking advantage of the unique thermochromic behaviors of (C<sub>5</sub>H<sub>14</sub>NO)<sub>2</sub>MnBr<sub>4</sub>, the temperature-responsive anticounterfeiting labels and encryption codes with multilevel design and high security have been constructed. This work provides new insights for the preparation of metal halides with multiple luminescence performances, facilitating the development of anticounterfeiting and information protection technologies.","PeriodicalId":40,"journal":{"name":"Inorganic Chemistry","volume":"27 1","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144177213","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}