Fu-Bin Liu, Meng-Jia Shang, Han-Han Lu, Jing Li, Cong Kong, Wen-Jing Zhang, Yin-Shan Meng, Tao Liu
{"title":"A Pair of Hydrogen-Bonded Cobalt(II) Complexes Showing the Proton Conduction and Spin Crossover Property","authors":"Fu-Bin Liu, Meng-Jia Shang, Han-Han Lu, Jing Li, Cong Kong, Wen-Jing Zhang, Yin-Shan Meng, Tao Liu","doi":"10.1002/ejic.202400761","DOIUrl":"https://doi.org/10.1002/ejic.202400761","url":null,"abstract":"<p>Achieving high proton conductivity in spin-crossover (SCO) compounds is promising for the development of magnetoelectric and spintronics devices. In this work we designed two spin-crossover and proton-conductive bifunctional Co(II) compounds, [Co(Pyrimidine-terpy)<sub>2</sub>](BF<sub>4</sub>)<sub>2</sub>⋅2H<sub>2</sub>O (<b>1⋅2H<sub>2</sub>O</b>; Pyrimidine-terpy=4′-(5-pyrimidinyl)-2,2′:6′,2“-terpyridine) and [Co(Pyrimidine-terpy)<sub>2</sub>](ClO<sub>4</sub>)<sub>2</sub>⋅2H<sub>2</sub>O <b>(2⋅2H<sub>2</sub>O)</b>. Both compounds undergo the typical spin transitions and have a hydrogen-bonding network consisting of anions with solvent water molecules. At 353 K and under 95 % relative humidity, the proton conductivity of <b>1⋅2H<sub>2</sub>O</b> was 1.9×10<sup>−4</sup> S cm<sup>−1</sup> and that of <b>2⋅2H<sub>2</sub>O</b> was 7.5×10<sup>−5</sup> S cm<sup>−1</sup>. The activation energy analysis indicates that the proton conduction of <b>1⋅2H<sub>2</sub>O</b> follows the Vehicle mechanism in the temperature range of 303–318 K, while the Grotthuss mechanism plays a dominant role in the higher temperature range of 323–353 K. Additionally, <b>2⋅2H<sub>2</sub>O</b> also follows the Grotthuss mechanism in the temperature range of 338–353 K. This study provides new guidelines for the design of novel SCO molecular materials with proton conduction functionality.</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 7","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143565358","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":"A Platinum Complex Capable of Forming a Crystal Containing Two Distinct Molecular Arrangements","authors":"Tomohiro Seki, Akihito Yano","doi":"10.1002/ejic.202400793","DOIUrl":"https://doi.org/10.1002/ejic.202400793","url":null,"abstract":"<p>A platinum complex that contains benzoselenophene and 2,6-dichlorophenyl isocyanide groups [Pt(BS)<sub>2</sub>(DCPI)<sub>2</sub>; BS=2-benzoselenophenyl, DCPI=2,6-dichlorophenyl isocyanide; <b>1</b>] forms crystalline samples that show blue or green emission. The blue-emitting crystals showed luminescent mechanochromism, affording a green-emitting powder due to a grinding-induced crystal-to-amorphous phase transition. Despite the different emission colors of the green- and blue-emitting crystals, their powder X-ray patterns are similar, suggesting that the green-emitting crystals contain both the blue-emitting crystal domain and a small amount of an amorphous phase, between which energy transfer occurs to achieve the green photoluminescence from the minor domain.</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143741208","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}
Kai Di, Dawei Yang, Ronghuan Du, Shengbin Dong, Baomin Wang, Jingping Qu
{"title":"Construction and Reactivity of Benzimidazole-Modified Thiolate-Bridged Diiron Complexes with Different Electronic Structures","authors":"Kai Di, Dawei Yang, Ronghuan Du, Shengbin Dong, Baomin Wang, Jingping Qu","doi":"10.1002/ejic.202400643","DOIUrl":"https://doi.org/10.1002/ejic.202400643","url":null,"abstract":"<p>Thiolate-bridged diiron complexes have drawn extensive attention due to their wide applications in the biomimetic simulation for the structure and function of various metalloenzymes and the related bioinspired catalysis. Through the introduction of the functional subunit into the bridging thiolate ligands, the resulting thiolate-bridged diiron complexes with different geometric and electronic structures can exhibit distinct reactivity. Herein, we utilize a half-sandwich type of mononuclear iron complex as the reaction precursor to construct two novel thiolate-bridged diiron complexes featuring the benzimidazole moiety through the oxidative dimerization strategy. X-ray diffraction analysis reveals the two thiolate ligands containing the benzimidazole group in a <i>syn</i> arrangement bridge the two iron centers through the sulfur and nitrogen atoms. Furthermore, Mössbauer spectroscopy and computational studies suggest two complexes both possess two low-spin Fe<sup>III</sup> ions, but adopt different magnetic couplings to give different electronic structures. Notably, difference in geometric and electronic structures between two complexes results in the distinct reactivity toward the azide species.</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 5","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431343","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":"Crystal Structure, Band Gap, and Optoelectronic Performance of Lead-Free Cs2FeCl5⋅H2O Erythrosiderite-Halide Single Crystal and Its Thin Film","authors":"Chen Wang, Wenhuan Cao, Huimeng Shen, Huidan Gao, Huawei Zhou, Xiaoying Guo","doi":"10.1002/ejic.202400628","DOIUrl":"https://doi.org/10.1002/ejic.202400628","url":null,"abstract":"<p>The unique physical and chemical properties of erythrosiderite-halides make them candidates for semiconductor materials and optoelectronic devices. However, research on the optoelectronic properties of these materials is still relatively limited. This study presents the crystal structure and optoelectronic properties of Cs₂FeCl₅⋅H₂O erythrosiderite halide. The results show that Cs₂FeCl₅⋅H₂O is an orange-red needle-like crystal, with its crystal system and space group belonging to the orthorhombic system and Cmcm(63), respectively. Photodetectors made from Cs₂FeCl₅⋅H₂O exhibit stable photocurrent responses in the visible light range (from 397 to 564 nm). Under conditions of a light intensity of 30 W/m<sup>2</sup> at 397 nm with a bias voltage of 4.5 V, the responsivity of Cs₂FeCl₅⋅H₂O is 8.41 mA/W, and the detectivity is 4.43 × 10<sup>6</sup> Jones. There is a strong linear relationship between the net photocurrent density of Cs₂FeCl₅⋅H₂O and light intensity, as well as a strong linear relationship between responsivity and voltage, with R<sup>2</sup>=0.96. Thus, Cs₂FeCl₅⋅H₂O has excellent optoelectronic performance and is a promising compound for optoelectronic applications.</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 5","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431103","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}
Fengqin Wang, Lin Li, Hui-Mei Shan, Xinru Li, Sushan Feng, Tai-Chu Lau, Yingying Liu, Qian Wang
{"title":"Kinetics and Mechanism of the Oxidation of Ammonia by Ferrate(VI) in Aqueous Solutions","authors":"Fengqin Wang, Lin Li, Hui-Mei Shan, Xinru Li, Sushan Feng, Tai-Chu Lau, Yingying Liu, Qian Wang","doi":"10.1002/ejic.202400733","DOIUrl":"https://doi.org/10.1002/ejic.202400733","url":null,"abstract":"<p>Metal oxo complexes are potentially useful for the catalytic oxidation of ammonia to produce nitrite/nitrate or for the construction of ammonia fuel cell. In the work we have studied the kinetics and mechanisms of the oxidation of ammonia by ferrate(VI) (FeO<sub>4</sub><sup>2–</sup>), a well-defined metal oxo species. The kinetics was investigated over a pH range of 7.5 to 10, the rate-law is rate=<i>k</i><sub>2</sub>[ferrate][ammonia]. <i>k</i><sub>2</sub> decrease with increasing pH, the results indicated that at pH 7.5 the reacting species are HFeO<sub>4</sub><sup>–</sup> and NH<sub>4</sub><sup>+</sup>, while at pH >9 the reacting species are FeO<sub>4</sub><sup>2–</sup> and NH<sub>3</sub>. At pH 7.5 the reaction occurs according to the following stoichiometry: 8HFeO<sub>4</sub><sup>–</sup> + 3NH<sub>4</sub><sup>+</sup> + 3H<sub>2</sub>O →8Fe(OH)<sub>3</sub> + 3NO<sub>3</sub><sup>–</sup> + 2OH<sup>–</sup>. Nitrate is also formed as the predominantly product at higher pHs. Based on the experimental results and DFT calculations, the proposed mechanism involves an oxygen-atom transfer from ferrate(VI) to ammonia to produce hydroxylamine, which is then rapidly oxidized by excess ferrate to nitrate.</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 6","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489847","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":"Front Cover: An Intramolecular Bis(Amino)Phosphine-Stabilised Phosphinidene: Synthesis and CuCl Coordination (Eur. J. Inorg. Chem. 1/2025)","authors":"Lisa N. Kreimer, Terrance J. Hadlington","doi":"10.1002/ejic.202580101","DOIUrl":"https://doi.org/10.1002/ejic.202580101","url":null,"abstract":"<p><b>The Front Cover</b> shows a naphthyl island that supports the growth of two P-trees, with a family of tigers moving from tree to tree. The tigers move towards the P-tree full of purple fruit, representing the intense colour of the title compound, and its electron-rich phosphinidene centre. The vast network of roots growing from this tree into the naphthyl island indicates the electron delocalisation within this system, guarded by two rare amino-parrots. More information can be found in the Research Article by L. N. Kreimer and T. J. Hadlington. Cover produced by M. Neuwirt and L. N. Kreimer\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure>\u0000 </p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejic.202580101","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143114011","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}
Corina Stoian, Nils Schmidt, Pim Puylaert, Mathias H. Linden, H. Bernhard Linden, Jens Beckmann
{"title":"Chemical and Electrochemical Oxidation of Diferrocenyltelluride","authors":"Corina Stoian, Nils Schmidt, Pim Puylaert, Mathias H. Linden, H. Bernhard Linden, Jens Beckmann","doi":"10.1002/ejic.202400709","DOIUrl":"https://doi.org/10.1002/ejic.202400709","url":null,"abstract":"<p>The halogenation of diferrocenyltelluride, Fc<sub>2</sub>Te, with XeF<sub>2</sub>, PhICl<sub>2</sub> and I<sub>2</sub> afforded the diferrocenyltellurium dihalides Fc<sub>2</sub>TeX<sub>2</sub> (X=F, Cl, I). Halide exchange of Fc<sub>2</sub>TeCl<sub>2</sub> with KBr yielded Fc<sub>2</sub>TeBr<sub>2</sub>. The oxidation of Fc<sub>2</sub>Te with NO[SbF<sub>6</sub>] and K[B(C<sub>6</sub>F<sub>5</sub>)<sub>4</sub>] provided the triferrocenyltelluronium salt [Fc<sub>3</sub>Te][B(C<sub>6</sub>F<sub>5</sub>)<sub>4</sub>] and the dinuclear nitrosyl iron complex Fe<sub>2</sub>(μ-TeFc)<sub>2</sub>(NO)<sub>4</sub>. The new compounds were comprehensively characterized by multinuclear NMR spectroscopy (<sup>125</sup>Te, <sup>19</sup>F, <sup>13</sup>C, <sup>1</sup>H), UV/vis absorption spectroscopy, cyclic voltammetry, LIFDI-TOF mass spectrometry and single crystal X-ray diffraction.</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 5","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejic.202400709","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431115","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":"An In-Depth Study of the Fe−Se System at the Nanoscale Reveals Remarkable Results on the Electrocatalytic Oxygen Evolution Reaction","authors":"Dinesh Singh, Monika Ghalawat, Pankaj Poddar","doi":"10.1002/ejic.202400743","DOIUrl":"https://doi.org/10.1002/ejic.202400743","url":null,"abstract":"<p>A catalyst for an electrocatalytic oxygen evolution reaction (OER) is a key component of the large-scale storage of renewable energy through the conversion of water into oxygen and hydrogen. Iron-based selenide materials are currently being considered as potential options for electrocatalytic oxygen evolution reaction (OER) because of their, widespread availability, low cost, and outstanding performance. In this study, we employed a thermal decomposition method to synthesize all stable phases of the Fe−Se system, including Fe<sub>7</sub>Se<sub>8</sub>, Fe<sub>3</sub>Se<sub>4</sub>, FeSe<sub>2</sub>, and FeSe. Additionally, we slurry-coated these phases onto a three-dimensional (3D) nickel foam substrate. The prepared 3D electrodes of Fe<sub>7</sub>Se<sub>8</sub>, Fe<sub>3</sub>Se<sub>4</sub>, FeSe<sub>2</sub>, and FeSe exhibit remarkably low overpotentials of 270, 276, 299, and 289 mV at a current density of 50 mA/cm<sup>2</sup> for OER. In addition, the catalytic activity for OER is also tested on glassy carbon electrodes to compare its performance with the Ni-foam 3D substrate. The Fe<sub>7</sub>Se<sub>8</sub> phase in the Fe−Se system exhibits the highest catalytic activity towards OER on both substrates due to variations in the Fe<sup>2+</sup>/Fe<sup>3+</sup> ratio and the presence of Fe vacancies (cation vacancies) within the crystal lattice. Moreover, a faradaic efficiency of 98 % was exhibited by Fe<sub>7</sub>Se<sub>8</sub> for the oxygen evolution reaction (OER).</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 7","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143564765","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}
Nataliia Marchenko, Sebastian Jung, Adeline Pham, Geordie Creste, Mucahit Aygün, Jérôme Esvan, Yannick Coppel, Piet W. N. M. van Leeuwen, Dominique Armspach, Simon Tricard
{"title":"Permethylated Cyclodextrins with Thiol Groups as Stabilizing Agents for Catalytic Water-Soluble Platinum Nanoparticles","authors":"Nataliia Marchenko, Sebastian Jung, Adeline Pham, Geordie Creste, Mucahit Aygün, Jérôme Esvan, Yannick Coppel, Piet W. N. M. van Leeuwen, Dominique Armspach, Simon Tricard","doi":"10.1002/ejic.202400776","DOIUrl":"https://doi.org/10.1002/ejic.202400776","url":null,"abstract":"<p>In this study, water-soluble colloidal platinum nanoparticles (Pt NPs) have been stabilized with novel thiolated cyclodextrins (CD-SH) and their catalytic performance has been investigated. We varied the size of the CD cycle (α-CD/β-CD), the degree of thiolation (one or two thiol groups per CD), and the CD/Pt molar ratio (0.5; 0.2; 0.1; 0.05) to find the best performing water-soluble, air-stable hydrogenation catalyst. An organometallic approach for the Pt NP synthesis resulted in the formation of small well-dispersed NPs of 1–2 nm in size, as shown by TEM. XPS analysis confirmed the formation of a Pt−S interaction, rationalizing the strong NP stabilization by a small quantity of CD-SH, while preserving the NP catalytic properties. Only 0.1 equivalent of CD-SH was enough to obtain a promising hydrogenation activity with preserved stability of the colloidal dispersion. Performing catalysis in biphasic conditions allowed simple separation of the products and reuse of the catalyst five times without deactivation.</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 8","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejic.202400776","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143646163","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}
M. Sc. Tobias B. Wassermann, M. Sc. Lukas Link, Prof. Dr. Rainer Niewa, Prof. Dr. Antti J. Karttunen, Prof. Dr. Florian Kraus
{"title":"Reactions of Binary Nitrides in Liquid Hydrogen Fluoride and the First Calcium Oxidofluoridometallate of a Group Six Element Ca[Mo2O2F9]2 ⋅ HF","authors":"M. Sc. Tobias B. Wassermann, M. Sc. Lukas Link, Prof. Dr. Rainer Niewa, Prof. Dr. Antti J. Karttunen, Prof. Dr. Florian Kraus","doi":"10.1002/ejic.202400748","DOIUrl":"https://doi.org/10.1002/ejic.202400748","url":null,"abstract":"<p>The reactions of the nitrides Mg<sub>3</sub>N<sub>2</sub>, Ca<sub>3</sub>N<sub>2</sub>, BN, Si<sub>3</sub>N<sub>4</sub> and Mo<sub>2</sub>N with anhydrous liquid HF (aHF) were investigated at 20 and 80 °C. While BN, Si<sub>3</sub>N<sub>4</sub>, and Mo<sub>2</sub>N did not react under these conditions, Mg<sub>3</sub>N<sub>2</sub> and Ca<sub>3</sub>N<sub>2</sub> were converted to MgF<sub>2</sub> and CaF<sub>2</sub>. In the reaction of Ca<sub>3</sub>N<sub>2</sub> with MoF<sub>6</sub> in aHF, adventitious moisture that diffused through the walls of the reaction vessel led to the formation of the compound Ca[Mo<sub>2</sub>O<sub>2</sub>F<sub>9</sub>]<sub>2</sub> ⋅ HF. We then discovered that it can also be made directly from the reaction of CaCl<sub>2</sub> with MoOF<sub>4</sub> in aHF. The compound was characterized by single crystal and powder X-ray diffraction and quantum-chemical calculations on the solid allowed for the assignment of the IR and Raman bands.</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 7","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejic.202400748","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143565072","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}