Journal of Fluorine Chemistry最新文献

{"title":"Electrochemical reduction behavior of Si(IV) ions in LiF-SiO2 and KF-SiO2 melts at 1173 K","authors":"Yuta Suzuki ,&nbsp;Takuya Goto","doi":"10.1016/j.jfluchem.2025.110420","DOIUrl":"10.1016/j.jfluchem.2025.110420","url":null,"abstract":"<div><div>Metal electrodeposition from metal oxides is beneficial not only in the terrestrial metal smelting process but also in the process of recovering metals from minerals on the Moon and Mars. In the electrochemical process, a binary melt of metal oxide and metal fluoride can be a promising reaction media for constructing a practical electrolytic system that allows metal recovery directly from metal oxide at lower temperatures. In this study, the electrochemical reduction behavior of Si(IV) ions in LiF-SiO₂ and KF-SiO₂ melts at 1173 K, which included 10 mol% SiO₂, was studied toward controlling the electrodeposition process of crystalline Si in high-temperature melts with higher SiO₂ composition ratios. The dissolution behavior of SiO₂ was investigated by high-temperature Raman spectroscopy and density functional theory calculation, revealing that Si(IV) complex ions such as Si₃F₇–2 K are formed in the KF-SiO₂ system, whereas Si(IV) ion was not easily bonded to constituent ions of the LiF-SiO₂ melt. It was demonstrated that polycrystalline Si could be obtained by potentiostatic electrolysis in both melts, and the reduction rate of Si(IV) ions was faster in the LiF-SiO₂ system. The Raman spectroscopy and XRD analysis revealed that the electrodeposits were the polycrystalline Si and the alloys such as Li-Si and K-Si. The reported data on the interaction between fluoride ions and Si(IV) ions in the binary melt of metal fluoride and SiO₂ will contribute to realizing an in-situ resource utilization process that enables one-step Si recovery from SiO₂.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"283 ","pages":"Article 110420"},"PeriodicalIF":1.7,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143552015","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}

{"title":"Theoretical study on the compatibility of C4F7N decomposition products with metal oxides: First-principles","authors":"Gang Peng ,&nbsp;Xiajin Rao ,&nbsp;Dajian Li ,&nbsp;Benli Liu ,&nbsp;Yingyu Wu","doi":"10.1016/j.jfluchem.2025.110417","DOIUrl":"10.1016/j.jfluchem.2025.110417","url":null,"abstract":"<div><div>The compatibility between the gas and solid materials within the gas chamber is key to ensuring the safe operation of electrical equipment. Current research primarily focuses on the compatibility between the C₄F₇N (Heptafluoroisobutyronitrile) and the solid materials used in equipment. However, C₄F₇N decomposes under electrical and thermal fault conditions, while metal materials are also prone to oxidation during the manufacturing and operation processes. In this paper, the interaction systems between the main decomposition products of C₄F₇N (CO, CF₄ and C₃F₆(perfluoropropene)) and typical metal surface oxides (Al₂O₃, CuO) are established. Based on first-principles, the interaction energy, charge transfer, electronic density of states, differential charge density, and weak interaction forces are evaluated as five microscopic parameters. The interaction mechanisms between the decomposition products of C₄F₇N and the surface oxides of typical metal materials are analyzed at the microscopic level, further assessing their compatibility. The results show that both CO and CF₄ exhibit weak interactions with the Al₂O₃(0 0 0 1) interface, demonstrating good compatibility. However, the interaction energy between C₃F₆ and the Al₂O₃(0 0 0 1) interface reaches -3.13 eV with a charge transfer of 0.336e, showing significant charge accumulation, as well as stronger interactions, and the apparent overlap between the 2p orbitals of F atoms and the 3p orbitals of Al atoms between 0eV-6eV. This suggests the potential formation of chemical bonds, leading to poor compatibility. The interactions between CO, CF₄ and C₃F₆ with the CuO(1 1 1) interface are all weak, indicating good compatibility. In conclusion, to ensure the safe operation of C₄F₇N/CO₂ environmentally friendly gas-insulated equipment, it is recommended to maximize the use of copper materials in metal equipment and avoid prolonged exposure of the equipment to environments prone to oxidation, thereby further enhancing the stability and reliability of the equipment.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"283 ","pages":"Article 110417"},"PeriodicalIF":1.7,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143552017","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}

{"title":"Fluorinated vs. non-fluorinated 1,3-dimethoxypropane: A comparative analysis for lithium metal battery applications","authors":"Alexander A. Hizbullin,&nbsp;Irina V. Kutovaya,&nbsp;Olga I. Shmatova","doi":"10.1016/j.jfluchem.2025.110418","DOIUrl":"10.1016/j.jfluchem.2025.110418","url":null,"abstract":"","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"283 ","pages":"Article 110418"},"PeriodicalIF":1.7,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143552016","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}

{"title":"Retro-favorskii reaction employing fluoride sources and its use as immobilization strategy","authors":"Andrea Giovanelli ,&nbsp;Marco Carlotti","doi":"10.1016/j.jfluchem.2025.110405","DOIUrl":"10.1016/j.jfluchem.2025.110405","url":null,"abstract":"<div><div>In this study, we developed a novel and simple approach to perform retro-Favorskii type reactions comprising the use of a readily available fluoride source. Compared to the methods usually employed – which rely on the use of strong basic systems, such as KOH in toluene, at high temperatures and a reaction time of several hours – the one we propose employs milder conditions, shorter reaction times, is compatible with more solvents, and produces no appreciable amount of byproducts, thus allowing simple workup procedures. The reaction we describe is enabled by the strong basic character of the fluoride ion in absence of water. However, we observed that the reaction is remarkably tolerant to humidity and no anhydrous conditions are needed, making the reaction extremely straightforward to perform. The possibility of performing such reactions in a fast and reliable manner, without the appreciable formation of byproducts, can offer new interesting opportunities to efficiently employ propargyl alcohols derivatives as a masking group for carbonyls. The latter approach can be particularly interesting for the synthesis and derivatization of carbonyl-rich compounds – such as large, conjugated, electron-deficient systems or quinoid-based pigments – for which the limited solubility often precludes the synthesis of certain derivatives or their application in functional devices.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"283 ","pages":"Article 110405"},"PeriodicalIF":1.7,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143473934","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}

{"title":"Clean photochemical conversion of perfluoroalkylated phenanthrene-9,10-o-quinones to perfluoroalkylated diphenic anhydrides","authors":"Shankar Gairhe,&nbsp;Mason Ferrie,&nbsp;Haoran Sun","doi":"10.1016/j.jfluchem.2025.110406","DOIUrl":"10.1016/j.jfluchem.2025.110406","url":null,"abstract":"<div><div>Under light irradiation, carbonyl compounds interact with molecular oxygen, a common excited state quencher, resulting in the formation of either triplet state-oxygen adducts or singlet oxygen via energy transfer. With phenanthrene-9,10-o-quinones, molecular oxygen usually adds on molecular structures forming triplet state-oxygen adducts which then convert to different final products, often complex mixtures. Here, we report that perfluoroalkylated phenanthrene-9,10-o-quinones exclusively undergo light mediated transformation into diphenic anhydride derivatives.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"283 ","pages":"Article 110406"},"PeriodicalIF":1.7,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143521298","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}

{"title":"Fluorine-containing isosteres enable a structure-activity relationship study of gingerol derivatives","authors":"Shelby E. Cooper,&nbsp;Diarta Kabashi,&nbsp;Marlin E. Yacoub,&nbsp;Jessica A. Molen,&nbsp;Osman Farhan,&nbsp;Christina Farley,&nbsp;Samantha Yencha,&nbsp;Michelle M. Figueiredo,&nbsp;Nidheesh Phadnis,&nbsp;Wynter Henry,&nbsp;Julian A. Harris,&nbsp;Frank Wilkinson,&nbsp;John A. Milligan","doi":"10.1016/j.jfluchem.2025.110400","DOIUrl":"10.1016/j.jfluchem.2025.110400","url":null,"abstract":"<div><div>A series of fluorinated and non-fluorinated [6]-gingerol, [6]-paradol, [6]-shogaol and ferulate derivatives were synthesized. Testing these analogs in anti-proliferation assays with MCF-7, A549, HCT-116 and HEK-293 cell lines provided insight into the structural features that contribute to the anti-proliferative activity of naturally occurring ginger constituents. In particular, the use of both vinyl and alkyl trifluoromethyl isosteres allowed us to evaluate the structure-activity impact of the enone motif found in shogaols. Our results indicate that enone-containing derivatives have a higher potency, suggesting the conjugated enone motif characteristic of shogaols may be primarily responsible for the anti-cancer activity of the broader natural product family.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"282 ","pages":"Article 110400"},"PeriodicalIF":1.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143386313","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}

{"title":"2-Trifluoromethoxyacetic acid – Synthesis and characterization","authors":"Thorsten Meier ,&nbsp;Sabine Lorenzen ,&nbsp;Tanja Knuplez ,&nbsp;Tobias Preitschopf ,&nbsp;Karsten Koppe ,&nbsp;Peter Barthen ,&nbsp;Rüdiger Bertermann ,&nbsp;Michael Schulte ,&nbsp;Nikolai Ignat‘ev ,&nbsp;Maik Finze","doi":"10.1016/j.jfluchem.2025.110396","DOIUrl":"10.1016/j.jfluchem.2025.110396","url":null,"abstract":"<div><div>A straightforward and high-yield synthesis of 2-trifluoromethoxyacetic acid CF₃OCH₂C(O)OH starting from trifluoromethyl triflate CF₃SO₂OCF₃ is described. The trifluoromethoxide anion was generated from trifluoromethyl triflate and a fluoride source followed by a nucleophilic substitution reaction with the {OCF₃}^– ion to yield CF₃OCH₂C(O)OC₂H₅. The ester was converted into M{CF₃OCH₂CO₂} (M = Na, K) and the acid CF₃OCH₂C(O)OH was obtained from the sodium salt and HCl. In addition, the silver(I) salt of the {CF₃OCH₂CO₂}^– anion was synthesized from CF₃OCH₂C(O)OH and silver(I) oxide. The study includes a new synthesis for the starting compound CF₃SO₂OCF₃ and a detailed description for the preparation of [N(CH₃)₄]{OCF₃}. Furthermore, the crystal structures of CF₃OCH₂C(O)OH, CF₃OCH₂C(O)OC₂H₅, M{CF₃OCH₂CO₂} (M = K, Ag), and [N(CH₃)₄]{OCF₃} are reported.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"282 ","pages":"Article 110396"},"PeriodicalIF":1.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152572","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}

{"title":"Novel synthetic method of 1,1,2,2-tetrafluoro-2-[(1,2,2-trifluoroethenyl)oxy]ethanesulfonyl fluoride","authors":"Nobuyuki Uematsu ,&nbsp;Yasuhiro Nagato ,&nbsp;Ken-ichi Yakigaya ,&nbsp;Kaishi Hori ,&nbsp;Hideki Date ,&nbsp;Akitake Nakamura ,&nbsp;Kazuki Maeda","doi":"10.1016/j.jfluchem.2025.110399","DOIUrl":"10.1016/j.jfluchem.2025.110399","url":null,"abstract":"<div><div>A novel synthetic method of 1,1,2,2-tetrafluoro-2-[(1,2,2-trifluoroethenyl)oxy]ethanesulfonyl fluoride, the raw material for perfluorinated polymer electrolyte membranes, was developed from the starting material CF₃CF(COF)O(CF₂)₂SO₂F via the ring-opening reaction of cyclic compound and the cleavage reaction of vinyl sulfonic anhydride using commercially available reagents.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"282 ","pages":"Article 110399"},"PeriodicalIF":1.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152573","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}

{"title":"Synthesis of poly [2,3,5,6-tetrafluoro-4-(trifluoromethyl) phenylaminophosphazene]/LiNbO3 nanocomposites and characterization of their morphological, mechanical, and piezoelectric behavior for energy harvesting applications","authors":"Nand Kumar ,&nbsp;Nagmani Manikpuri ,&nbsp;Atanu Giri ,&nbsp;Om Prakash Gautam","doi":"10.1016/j.jfluchem.2025.110404","DOIUrl":"10.1016/j.jfluchem.2025.110404","url":null,"abstract":"<div><div>The use of polymer nanocomposites for piezoelectric energy harvesting applications has created exciting opportunities in flexible electronics. In this research, we synthesized poly [2,3,5,6-tetrafluoro-4-(trifluoromethyl)phenylaminophosphazene (PTPP)]/LiNbO₃ nanocomposites by incorporating trigonal crystalline lithium niobate nanoparticles (average particle size ∼ 45 nm) into PTPP via solution casting method. Further, we investigated the effects of different concentrations of lithium niobate (LiNbO₃) nanoparticles on the thermal, mechanical, and piezoelectric performance of the PTPP nanocomposites. The synthesized nanocomposites exhibited strong interfacial interactions between the organic and inorganic phases, resulting in a uniform morphology across all compositions, except for the 8 % loading, which showed some agglomeration. Additionally, both PTPP and its nanocomposites demonstrated high thermal stability, with the highest char yield of 64.1 % observed at 8 % LiNbO₃ loading. Mechanical testing revealed a significant improvement in tensile strength (224 %) and a reduction in elongation at break (34.4 %) with 8 % LiNbO₃ loading. These enhancements in thermal and mechanical properties were attributed to the presence of strong C-F bonds and LiNbO₃ content in the nanocomposites. Besides this, dynamic mechanical analysis indicated that 8 % LiNbO₃-loaded PTPP nanocomposite also exhibited the lowest tan δ value of 0.68 and the highest energy storage capacity with minimal loss over a high-temperature range due to the restricted mobility of polymer chain with the addition of nanoparticles. PTPP also exhibited a piezoelectric effect with a coefficient of 26.4 pC/N, which was further enhanced by the incorporation of LiNbO₃, reaching a maximum increase of 6.4 %. These novel nanocomposites show great potential for energy-harvesting applications in electronic devices.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"282 ","pages":"Article 110404"},"PeriodicalIF":1.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143421260","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}

{"title":"Exploration towards the bromopentafluorosulfanylation reaction of terminal alkynes","authors":"Marie-Rose Ouellet-Du Berger ,&nbsp;Jean-Philippe Bouillon ,&nbsp;Jean-François Paquin","doi":"10.1016/j.jfluchem.2024.110386","DOIUrl":"10.1016/j.jfluchem.2024.110386","url":null,"abstract":"<div><div>In this paper, we report our efforts toward the development of a bromopentafluorosulfanylation reaction of terminal alkynes. The use of tetrabromomethane (CBr₄) as a bromine atom source allowed the formation of the bromopentafluorosulfanylated product. Practically, however, the desired products could not be separated from the minor chloropentafluorosulfanylated products as well as the dibromoalkene side-products generated under those reaction conditions.</div></div>","PeriodicalId":357,"journal":{"name":"Journal of Fluorine Chemistry","volume":"282 ","pages":"Article 110386"},"PeriodicalIF":1.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152574","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}