CrystEngComm最新文献

{"title":"Moisture-induced single-crystal-to-powder structural transformation in cadmium coordination compounds containing an electron-deficient ligand: coordinated solvent exchange and retention of dimension","authors":"Bahare Ebrahimi and Behrouz Notash","doi":"10.1039/D5CE00648A","DOIUrl":"https://doi.org/10.1039/D5CE00648A","url":null,"abstract":"<p >Two cadmium coordination compounds and one cadmium coordination polymer containing the electron-deficient 3,6-bis(pyridin-3-yl)-1,2,4,5-tetrazine (3,3′-pytz) ligand, namely, [Cd(3,3′-pytz)<small>₂</small>(EtOH)<small>₂</small>(ClO<small>₄</small>)<small>₂</small>] (<strong>1</strong>), [Cd(3,3′-pytz)<small>₂</small>(H<small>₂</small>O)<small>₂</small>(ClO<small>₄</small>)<small>₂</small>] (<strong>2</strong>) and {[Cd(3,3′-pytz)(EtOH)<small>₂</small>(ClO<small>₄</small>)<small>₂</small>](1,4-dioxane)}<small>_<em>n</em></small> (<strong>3</strong>), respectively, have been successfully synthesized using the solvent effect in a solvent diffusion method. The single-crystal X-ray diffraction (SC-XRD) analysis of compounds <strong>1</strong> and <strong>2</strong> reveals the formation of zero-dimensional coordination compounds, whereas compound <strong>3</strong> represents a 1D linear chain coordination polymer. Further investigation shows that by the absorption of moisture from the air, while maintaining their structural dimensions, compounds <strong>1</strong> and <strong>3</strong> underwent single-crystal-to-powder structural transformation to compounds <strong>2</strong> and [Cd(3,3′-pytz)(H<small>₂</small>O)<small>₂</small>(ClO<small>₄</small>)<small>₂</small>]<small>_n</small> (<strong>3T</strong>) (B. Ebrahimi, B. Notash, T. Matar and R. Dinnebier, <em>Inorg. Chem</em>., 2024, <strong>63</strong>, 983–999), respectively. Our finding was confirmed through powder X-ray diffraction (PXRD), thermogravimetric analysis (TGA), elemental analysis and FT-IR studies. Moreover, Hirshfeld surface analysis was used for a detailed investigation of the intermolecular interactions, especially semilocalized (η<small>²</small>) and delocalized (η<small>⁶</small>) anion–π interactions formed between the electron-deficient tetrazine rings and perchlorate anions in compounds <strong>1–3</strong>. We observed several combined supramolecular synthons, such as anion–π–π–anion (ClO<small>₄</small><small>⁻</small>⋯π<small>_tet</small>⋯π<small>_tet</small>⋯ClO<small>₄</small><small>⁻</small>) and π–sandwich anion–π–anion (ClO<small>₄</small><small>⁻</small>⋯π<small>_tet</small>⋯ClO<small>₄</small><small>⁻</small>), in these structures.</p>","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 35","pages":" 5889-5900"},"PeriodicalIF":2.6,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of resistivity distribution in p-type and n-type SiC single crystals grown by the PVT method","authors":"Lingling Xuan, Zhouyu Tong, Sheng'ou Lu, Anqi Wang, Can Cui, Yuanchao Huang, Tianqi Deng, Xiaodong Pi, Deren Yang and Xuefeng Han","doi":"10.1039/D5CE00597C","DOIUrl":"https://doi.org/10.1039/D5CE00597C","url":null,"abstract":"<p >As a semiconductor material, silicon carbide (SiC) exhibits critical dependencies between the spatial distribution of p-type and n-type dopants and the performance of its electronic devices. Currently, n-type doping has achieved significant technological maturity, while p-type doping remains comparatively less developed. A comprehensive comparative analysis of the mechanisms governing these two doping strategies is essential to elucidate their distinct effects on the resistivity distributions during crystal growth. In this study, we demonstrate that the axial and radial resistivity distributions in p-type and n-type SiC crystals exhibit opposite trends. Through numerical simulations, we systematically analyze the effects of key growth parameters, including the growth interface temperature, C/Si ratio, and dopant partial pressures, on the resistivity profiles of both crystal types. To further elucidate the differences in resistivity distributions between the two crystals, we analyze the relationship between dopant concentration and the carbon atomic molar ratio from a thermodynamic perspective. Additionally, we assessed the incorporation efficiency of aluminum (Al) into the SiC lattice, revealing that it is two orders of magnitude lower than that of nitrogen (N) doping.</p>","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 34","pages":" 5761-5768"},"PeriodicalIF":2.6,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144909497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ligand-responsive MOF-based colourimetric sensor for visual identification of colourless corrosive acid and base vapours","authors":"Hyejin Yoo, Chanhyun Park, Solmin Lee and Jin Yeong Kim","doi":"10.1039/D5CE00640F","DOIUrl":"https://doi.org/10.1039/D5CE00640F","url":null,"abstract":"<p >The development of reliable sensors for identifying corrosive vapours remains a significant challenge due to the high reactivity of these gases and the fundamentally distinct sensing mechanisms required for acids and bases. Herein, we report a single-component colourimetric sensor based on Cu<small>²⁺</small>-functionalised MOF-808 (Cu-MOF-808) capable of visually distinguishing six representative corrosive vapours, including hydrogen halides (HCl, HBr, HI) and volatile amines (NH<small>₃</small>, ethylenediamine, N<small>₂</small>H<small>₄</small>). Cu<small>²⁺</small> ions were post-synthetically anchored onto the Zr<small>₆</small> nodes of the robust MOF-808 framework, providing accessible and reactive sites for vapour-responsive colour changes. The sensor exhibited distinct, analyte-specific colour transitions upon vapour exposure while remaining stable under variations in humidity, temperature, and common interfering gases. For practical application, Cu-MOF-808 was embedded in a flexible PVDF matrix to fabricate a portable sensor film. Upon vapour exposure, colour changes were digitised into RGB values and accurately classified within 15 seconds <em>via</em> statistical analysis. These results highlight the potential of Cu-MOF-808 as a practical sensor for real-time monitoring of corrosive gases in the real-world.</p>","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 36","pages":" 5965-5970"},"PeriodicalIF":2.6,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145057488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"π-Stacked organic frameworks with captured ammonia for benzamide synthesis","authors":"Shuai Geng, Yu-Ou He, Wang-Kang Han and Zhi-Guo Gu","doi":"10.1039/D5CE00604J","DOIUrl":"https://doi.org/10.1039/D5CE00604J","url":null,"abstract":"<p >Ammonia (NH<small>₃</small>) is a carbon-free energy carrier with great potential for sustainable energy systems. However, current NH<small>₃</small> capture materials still suffer from poor selectivity and capacity. Herein, we systematically engineered pyridine-derived π-stacked organic frameworks (πOFs), forming four crystalline materials (πOF-bpe, πOF-vdp, πOF-epp and πOF-pyp). Among these, πOF-bpe exhibited exceptional NH<small>₃</small> storage (8.81 mmol g<small>⁻¹</small>) and release properties. Furthermore, the as-synthesized πOF-bpe could serve as a solid reagent to provide NH<small>₃</small> in the synthesis of benzamide from benzoyl chloride. Structural characterization and computational analysis confirmed that πOF-bpe's excellent selectivity for NH<small>₃</small> capture is attributed to specific N–H⋯N hydrogen bonds and a hierarchical hydrogen-bonding network. This pioneering research not only highlights the potential of πOFs for efficient NH<small>₃</small> capture, but also provides new insights into designing supramolecular frameworks for NH<small>₃</small> utilization in organic transformations.</p>","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 36","pages":" 6074-6078"},"PeriodicalIF":2.6,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145057556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Expression of concern: Preparation of “natural” diamonds by HPHT annealing of synthetic diamonds","authors":"Chao Fang, Yuewen Zhang, Zhuangfei Zhang, Chongxin Shan, Weixia Shen and Xiaopeng Jia","doi":"10.1039/D5CE90113H","DOIUrl":"https://doi.org/10.1039/D5CE90113H","url":null,"abstract":"<p >Expression of concern for ‘Preparation of “natural” diamonds by HPHT annealing of synthetic diamonds’ by Xiaopeng Jia <em>et al.</em>, <em>CrystEngComm</em>, 2018, <strong>20</strong>, 505–511, https://doi.org/10.1039/C7CE02013A.</p>","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 33","pages":" 5652-5652"},"PeriodicalIF":2.6,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ce/d5ce90113h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction: Sonochemical synthesis of Zr-based metal–organic cages and their adsorption performance towards tartrazine","authors":"De-Sheng Wei, Jian Li, Ting-Ting Xu, Wan-Yi Lan, Nan Lv, Yu-Teng Zhang and Shuang-Bao Li","doi":"10.1039/D5CE90109J","DOIUrl":"https://doi.org/10.1039/D5CE90109J","url":null,"abstract":"<p >Correction for ‘Sonochemical synthesis of Zr-based metal–organic cages and their adsorption performance towards tartrazine’ by De-Sheng Wei <em>et al.</em>, <em>CrystEngComm</em>, 2025, <strong>27</strong>, 1157–1166, https://doi.org/10.1039/d4ce01097c.</p>","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 32","pages":" 5527-5528"},"PeriodicalIF":2.6,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2025/ce/d5ce90109j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Review of the effect and progress in uniform films prepared by the magnetron sputtering method","authors":"Xinhang Wang, Aobo Wang, Jun Gao, Zhengwang Cheng, Mei Wang, Baozhang Zhao, Wei Zou and Xinguo Ma","doi":"10.1039/D5CE00515A","DOIUrl":"https://doi.org/10.1039/D5CE00515A","url":null,"abstract":"<p >Recent advances in thin film materials have attracted considerable scientific interest owing to their exceptional physicochemical properties and broad applicability in emerging technological domains such as energy harvesting, electronic devices, and display technologies. The continuous development of thin film technology and sophisticated characterization methods has placed increasing demands on achieving precise control over the performance characteristics of films. As critical parameters governing the functional performance of films, the thickness and uniformity represent fundamental metrics that require comprehensive investigation. This highlight focuses on the effects of the thickness and uniformity of films on their structural properties, the influencing factors and measurement methods of magnetron sputtering coating, and the research progress on several popular films. In the future, thin film technology will continue to evolve, making sustained contributions to the advancement of various fields.</p>","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 36","pages":" 5936-5951"},"PeriodicalIF":2.6,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145057485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Concentration-dependent regulation of amorphous calcium phosphate precursor transformation by citrate adsorption","authors":"Fan Yang, Jinxuan Zhou, Haiyang Huang and Meng Li","doi":"10.1039/D5CE00536A","DOIUrl":"https://doi.org/10.1039/D5CE00536A","url":null,"abstract":"<p >Phosphorus bioavailability in soils is largely governed by the nucleation and transformation of calcium phosphate (Ca-P) minerals, processes influenced by organic acids like citrate exuded by plant roots. Despite extensive research, the concentration-dependent effects of citrate on Ca-P crystallization remain unclear. This study explores how varying citrate concentrations regulate the nucleation, morphology, and phase transitions of Ca-P under weakly alkaline conditions. Real-time pH monitoring indicated that low citrate concentrations (≤1 μM) accelerate nucleation by promoting the transformation from amorphous calcium phosphate (ACP) to crystalline hydroxyapatite (HAP), whereas higher citrate levels (≥2 μM) inhibit nucleation, extending induction times markedly. Morphological analyses revealed distinct crystal shapes: flake-like structures at low citrate concentrations and dense spherical aggregates at higher levels. Raman spectroscopy and XPS characterization confirmed that citrate adsorbs onto Ca-P surfaces and modulates the electronic states of calcium and phosphorus. At low concentrations, citrate likely donates electron density to surface ions, facilitating nucleation, while at higher concentrations, electron-withdrawing carboxyl groups dominate, stabilizing intermediate amorphous phases and hindering crystallization. These findings elucidate the molecular mechanism behind citrate's dual regulatory role in ACP transformation, providing insights into phosphorus cycling in the rhizosphere and strategies for improving phosphate fertilizer efficiency in alkaline soils.</p>","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 35","pages":" 5918-5926"},"PeriodicalIF":2.6,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A highly hydrogen-bonded {Cu2Co} cyanide complex exhibiting high room-temperature proton conduction","authors":"Qi-Juan Cai, Lu-Yao Ma, Kun-Hua Zhang, Fu-Wan Dong, Ao-Na Sun, Jiong Yang and Dong Shao","doi":"10.1039/D5CE00674K","DOIUrl":"https://doi.org/10.1039/D5CE00674K","url":null,"abstract":"<p >A trinuclear cyanide-bridged {Cu<small>₂</small>Co} complex featuring a highly hydrogen-bonded 3D supramolecular structure was structurally, magnetically, and electrically characterized. Alternating current (AC) impedance measurements indicate that the complex exhibits temperature- and humidity-dependent proton conduction behavior with a superionic conductivity of around 10<small>⁻³</small> S cm<small>⁻¹</small> at room temperature. The high conductivity is attributed to strongly (N–H⋯O and O–H⋯O) hydrogen-bonded 1D protonic water chains within the supramolecular framework.</p>","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 35","pages":" 5788-5792"},"PeriodicalIF":2.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Morphological control of a metal–organic framework for single-crystal electronic device fabrication","authors":"Yingchao Wang, Xiaohe Miao and Lei Sun","doi":"10.1039/D5CE00534E","DOIUrl":"https://doi.org/10.1039/D5CE00534E","url":null,"abstract":"<p >Single-crystal electronic devices of metal–organic frameworks (MOFs) unveil their intrinsic electrical conductivities by eliminating the influence of grain boundaries. Their fabrication demands sophisticated control of crystal morphology: micro/nano fabrication requires crystals with sub-micrometer thicknesses, whereas manual fabrication requires those with hundred-micrometer lengths. Herein, we report morphological control of an electrically conductive MOF, Zn<small>₂</small>(TTFTB) (TTFTB<small>⁴⁻</small> = tetrathiafulvalene tetrabenzoate), by synthetically tuning nucleation and growth processes during crystallization. Whereas adjusting water content, organic solvent, solution pH, metal ion concentration, and reaction procedures, including temperature, time, and heating and cooling rates, did not produce crystals for either device fabrication method, increasing the concentration of H<small>₄</small>TTFTB led to crystals exhibiting an average length of 450 μm, with the longest above 800 μm. The growth of large Zn<small>₂</small>(TTFTB) crystals is facilitated by self-assembly of the ligand in the reaction mixture before formation of the MOF. These large crystals enabled manual fabrication of single-crystal 2-contact probe devices, displaying an average electrical conductivity of 3.84 × 10<small>⁻⁶</small> S cm<small>⁻¹</small> under ambient conditions.</p>","PeriodicalId":70,"journal":{"name":"CrystEngComm","volume":" 35","pages":" 5848-5854"},"PeriodicalIF":2.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}