{"title":"Front Cover: Redox Reactions of [RuIII(pic)3] (pic−=picolinate) with Sulfite in Aqueous Solution: Kinetic, and Mechanistic Studies (Eur. J. Inorg. Chem. 3/2025)","authors":"Olga Impert, Debabrata Chatterjee","doi":"10.1002/ejic.202580301","DOIUrl":"https://doi.org/10.1002/ejic.202580301","url":null,"abstract":"<p><b>The Front Cover</b> shows the redox reaction of a substitution-inert and electrically neutral [Ru<sup>III</sup>(pic)<sub>3</sub>] (pic<sup>−</sup>=picolinate) complex with sulfite in aqueous solution. Studies revealed that, despite being a considerably more weakly electron-accepting oxidant than those reported previously for S<sup>IV</sup> oxidation, [Ru<sup>III</sup>(pic)<sub>3</sub>] can effectively and selectively oxidize sulfite to sulfate through an outer-sphere electron-transfer pathway. More information can be found in the Research Article by O. Impert and D. Chatterjee.\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 3","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejic.202580301","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143117794","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}
Dr. Yuiga Nakamura, Prof. Naoyuki Shibayama, Prof. Hideki Hayashida, Prof. Kunihisa Sugimoto, Prof. Tsutomu Miyasaka
{"title":"Thermal Expansion Behavior of Halide Perovskite Single Crystals Across a Broad Temperature Range","authors":"Dr. Yuiga Nakamura, Prof. Naoyuki Shibayama, Prof. Hideki Hayashida, Prof. Kunihisa Sugimoto, Prof. Tsutomu Miyasaka","doi":"10.1002/ejic.202400682","DOIUrl":"https://doi.org/10.1002/ejic.202400682","url":null,"abstract":"<p>Halide perovskite crystals are garnering significant interest as a promising material for next-generation solar cells. They are also anticipated to be applicable in devices used across a wide temperature range, including X-ray and γ-ray detectors, as well as in solar cells designed for satellite environments. The coefficient of thermal expansion of halide perovskite crystals is a critical physical property to understand, especially given the potential for mechanical degradation in layered devices due to abrupt temperature fluctuations, which may result in mismatched expansion coefficients among different layers. In this study, we employed single crystal X-ray diffraction (XRD) techniques to investigate the coefficient of thermal expansion of halide perovskite crystals, with a specific focus on CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>, across an extensive temperature range. Our findings reveal that the lattice parameters exhibit discontinuous changes during the phase transition from the β-phase to the γ-phase, in stark contrast to the α to β phase transition. This observation implies that structural phase transitions at low temperatures could significantly affect the longevity and reliability of devices incorporating these materials. The methodology we have utilized for assessing coefficient of thermal expansion via single crystal structural analysis at low temperatures presents a substantial advancement in the research of halide perovskite crystals.</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 5","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431777","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}
Mariana Alcántara-Xicotencatl, Emmanuel Hernández-Martínez, Dr. Diego Martínez-Otero, Dr. Erandi Bernabé-Pablo
{"title":"Divergent Malonamides/Ti(NMe2)4 System for the Synthesis of Mono-, Bis-, and Tris(dimethylamide)-Titanium(IV) Complexes","authors":"Mariana Alcántara-Xicotencatl, Emmanuel Hernández-Martínez, Dr. Diego Martínez-Otero, Dr. Erandi Bernabé-Pablo","doi":"10.1002/ejic.202400772","DOIUrl":"https://doi.org/10.1002/ejic.202400772","url":null,"abstract":"<p>Modifying the synthesis time and temperature in the reaction of 2,2-dimethyl-N,N′-dimesityl-propanediamide (H<sub>2</sub>DMDMMA) and 2,2-dimethyl-N,N′-ditert-butyl-propanediamide (H<sub>2</sub>DTDMMA) with Ti(NMe<sub>2</sub>)<sub>4</sub> produces five distinct titanium amide malonamides (<b>4</b>–<b>8</b>). Three, two, or one −NMe<sub>2</sub> group is present in these complexes, all of which are <i>cis</i>-OO′ chelated except for one with a unique <i>cis</i>-NO chelate.In the literature, a variety of synthetic methodologies for malonamides (MAs is informed. The chelating features of MAs have been the subject of extensive investigation for use in liquid extraction of lanthanides (Ln) and actinides (An). However, no comparative study has explored the substituents influence the nucleophilic behavior of anionic MAs in their role as ligands. Herein, we present insight into the divergent 2,2-dimethyl-N,N′-dimesityl-propanediamide (H<sub>2</sub>DMDMMA) and 2,2-dimethyl-N,N′-ditert-butyl-propanediamide (H<sub>2</sub>DTDMMA)/ tetrakis(dimethylamido)titanium [Ti(NMe<sub>2</sub>)<sub>4</sub>] system, which allowed a collection of five complexes. The titanium amide malonamides obtained have three, two, or one -NMe<sub>2</sub> group and are <i>cis</i>-OO′ chelated, except for one complex that exhibits the unprecedented <i>cis</i>-NO chelate mode.</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 9","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejic.202400772","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698994","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}
Yali Zhao, Dr. Ziru Wang, Jinxiu Zhai, Xingjian Cao, Prof. Peilei He
{"title":"Boosting H2O2 Activation for the Efficient Alkene Epoxidation over Polyoxometalate-based Tetrakaidecahedron-like Nanodice Assemblies","authors":"Yali Zhao, Dr. Ziru Wang, Jinxiu Zhai, Xingjian Cao, Prof. Peilei He","doi":"10.1002/ejic.202400765","DOIUrl":"https://doi.org/10.1002/ejic.202400765","url":null,"abstract":"<p>The activation of hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) as a terminal oxidant holds great promise for catalytic oxidation processes. However, developing an efficient catalyst for the epoxidation of bulky organic molecules with H<sub>2</sub>O<sub>2</sub>, including cyclic alkenes, remains challenging. In this research, a lacunary polyoxometalate (POM)-based tetrakaidecahedron nanodices (NDs) are synthesized by [PW<sub>11</sub>O<sub>39</sub>]<sup>7−</sup> (PW<sub>11</sub>) clusters with tetrabutylammonium bromide (TBAB). The NDs exhibit significantly enhanced catalytic activity in the epoxidation of cyclooctene, with a yield 55.4 times greater than that of the raw PW<sub>11</sub>. Conversely, nanospheres (NSs) assembled from non-lacunary POM clusters of [PW<sub>12</sub>O<sub>40</sub>]<sup>3−</sup> (PW<sub>12</sub>) under the same conditions achieve only a 2.9 % yield, highlighting the essential role of the lacunary PW<sub>11</sub> structure in NDs. Raman spectroscopy and density functional theory (DFT) calculations confirm that the active hydroperoxo species from H<sub>2</sub>O<sub>2</sub> activation serves as the effective epoxidizing agent. The reduced energy barrier for H<sub>2</sub>O<sub>2</sub> activation on PW<sub>11</sub>, relative to PW<sub>12</sub>, corroborates the superior activity of the NDs. Furthermore, the intermediate generated post-H<sub>2</sub>O<sub>2</sub> activation shows stronger adsorption of cyclooctene, increasing oxygen transfer to cyclooctene during the epoxidation process. This study demonstrates the exceptional performance of an assembly structure utilizing lacunary POMs for the activation of H<sub>2</sub>O<sub>2</sub> and subsequent oxidation reactions.</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 8","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143646226","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}
Deeb Taher, Sara AlNaimat, Khaleel I. Assaf, Wissam Helal, Marcus Korb
{"title":"Synthesis of Chloro-Substituted β-Ketiminate Palladium Complexes, Spectral and Thermal Investigation of their Structures","authors":"Deeb Taher, Sara AlNaimat, Khaleel I. Assaf, Wissam Helal, Marcus Korb","doi":"10.1002/ejic.202400730","DOIUrl":"https://doi.org/10.1002/ejic.202400730","url":null,"abstract":"<p>The synthesis and characterization of nine palladium(II) complexes featuring β-ketoiminato ligands of type [Pd(ArNacac)<sub>2</sub>] (<b>4</b>) with Ar=2-chlorolphenyl (<b>a</b>); 3-chlorophenyl (<b>b</b>); 4-chlorophenyl (<b>c</b>); 2,3-dichlorophenyl (<b>d</b>); 2,4-dichlorophenyl (<b>e</b>); 2,6-dichlorophenyl (<b>f</b>); 3,5-dichlorophenyl (<b>g</b>); 2,4,5-trichlorophenyl (<b>h</b>); 2,4,6-trichlorophenyl (<b>i</b>) is reported. The molecular structure of <b>4 a–f, 4 h</b> and <b>4 i</b> in the solid state was confirmed by single-crystal X-ray diffraction studies. All eight crystal structures are centrosymmetric, with the metal positioned in a slightly distorted square plane. Intermolecular non-covalent interactions such as C−H⋅⋅⋅Pd, Cl⋅⋅⋅Cl, Cl⋅⋅ π, C−H⋅⋅⋅Cl, Cl⋅⋅⋅O, C−H⋅⋅ π, and π⋅⋅⋅π play crucial roles in the formation of the supramolecular structures. The crystal structures of <b>4 b</b>, <b>4 c</b>, and <b>4 e</b> revealed unique intermolecular C−H⋅⋅⋅Pd anagostic interactions between the hydrogen atom on the substituted ligand and the palladium centers, which enable the formation of 1-D polymeric chains. The intermolecular non-covalent interactions were analyzed using Hirshfeld surface. The proportional contributions of each individual atom to the formation of these non-covalent interactions are shown in the 2D fingerprint plots. Furthermore, density functional theory (DFT) has been used to compute the energetic estimation of non-covalent interactions in <b>4 b</b>, <b>4 c</b> and <b>4 e</b>. Furthermore, computational methods such the non-covalent interaction (NCI) plot index and quantum theory of atoms in molecules (QTAIM) analysis have been used to study the non-covalent interactions in <b>4 b</b>, <b>4 c</b>, and <b>4 e</b>.</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 6","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143489843","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}
Salah S. Massoud, Franz A. Mautner, Hiroshi Sakiyama, Febee R. Louka, Nahed H. M. Salem, Roland C. Fischer, Ana Torvisco, Thierry Guizouarn, Gunasekaran Velmurugan, Peter Comba, Fabrice Pointillart
{"title":"SMM Behavior in Distorted Trigonal Bipyramidal and Tetrahedral Cobalt(II) Complexes Based on Tripodal Tetradentate Phenolic Amines","authors":"Salah S. Massoud, Franz A. Mautner, Hiroshi Sakiyama, Febee R. Louka, Nahed H. M. Salem, Roland C. Fischer, Ana Torvisco, Thierry Guizouarn, Gunasekaran Velmurugan, Peter Comba, Fabrice Pointillart","doi":"10.1002/ejic.202400777","DOIUrl":"https://doi.org/10.1002/ejic.202400777","url":null,"abstract":"<p>Four Co<sup>II</sup> complexes [Co(<b>L<sup>1</sup></b>)(MeOH)] ⋅ MeOH (<b>1</b> ⋅ <b>MeOH</b>), [Co(<b>L<sup>2</sup></b>)(MeOH)] ⋅ MeOH (<b>2</b> ⋅ <b>MeOH</b>), [Co(<b>L<sup>3</sup></b>)(H<sub>2</sub>O)] ⋅ MeOH (<b>3</b> ⋅ <b>MeOH</b>) and [Co(<b>L<sup>4</sup></b>)] (<b>4</b>), derived from tripodal tetradentate phenolic amine arms, <b>H<sub>2</sub>L<sup>1</sup></b><sup>–<b>4</b></sup> were synthesized and structurally characterized. The complexes <b>1</b> ⋅ <b>MeOH</b>, <b>2</b> ⋅ <b>MeOH</b> and <b>3</b> ⋅ <b>MeOH</b> displayed distorted trigonal bipyramidal geometry, whereas <b>4</b> exhibited distorted tetrahedral geometry, depending on the substituents at the phenolate rings and amine arm. The variation of the coordination geometries and interatomic parameters around the Co<sup>II</sup> center has an impact on the magnetic behavior of the compounds. The complexes show magnetic anisotropy (ZFS) of the M<sub>S</sub>=<span></span><math></math>\u00001/2 and and <span></span><math></math>\u00003/2 sub-levels, with <i>D</i>=29.1(2), 22.7(1), 28.8(2) and 30.9(5) cm<sup>−1</sup> for <b>1</b> ⋅ <b>MeOH</b>, <b>2</b> ⋅ <b>MeOH</b>, <b>3</b> ⋅ <b>MeOH</b> and <b>4</b>, respectively. The results obtained from ab initio CASSF calculations match well with the experimental data, revealing the origin of magnetic anisotropy. The dynamic ac magnetic investigation of the magnetic susceptibility revealed a slow magnetic relaxation behavior for <b>2</b> ⋅ <b>MeOH</b>, <b>3</b> ⋅ <b>MeOH</b> and <b>4</b>. The field-induced slow relaxation of the magnetization occurred through combination of Raman and Direct processes, depending on the variation in the coordination geometries imposed by the coordinated ligand and/or the interatomic parameters around the Co<sup>II</sup> center, which in turn have definite impact on the magnetic features of the compounds.</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 8","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645807","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}
Alexander Granichny, Anna Leah Scholl, Christian Würtele, Siegfried Schindler
{"title":"Mechanistic Studies of Second Coordination Sphere Interactions in the Dioxygen Activation of a Copper(I) Complex with a N-(2-Ethoxyethanol)-bis(2-picolyl)amine Ligand","authors":"Alexander Granichny, Anna Leah Scholl, Christian Würtele, Siegfried Schindler","doi":"10.1002/ejic.202400804","DOIUrl":"https://doi.org/10.1002/ejic.202400804","url":null,"abstract":"<p>While first coordination sphere interactions have been investigated in great detail for the reactivity of copper(I) model complexes with dioxygen, the interactions of the secondary coordination sphere with the bound dioxygen so far remain underexplored. A series of copper(I) complexes with ligands based on <i>N</i>-(2-ethoxyethanol)-bis(2-picolyl)amine (<b>L(O)OH</b>) were synthesized, and the reactivity towards dioxygen was monitored by low-temperature stopped-flow UV/vis spectroscopy. Various “oxygen adduct complexes” were observed, and the influence of the second coordination sphere interactions was analyzed. If the ether moiety or the hydroxy group in <b>L(O)OH</b> is removed/replaced, the formation of a <i>trans</i>-<i>μ</i>-1,2-peroxido dicopper(II) complex or a bis(<i>μ</i>-oxido) dicopper(III) complex is observed. Establishing stronger hydrogen bonding while maintaining the ether moiety leads to hydrogen bond stabilized <i>trans</i>-<i>μ</i>-1,2-peroxido dicopper(II) complexes. Based on these results, we deduced that the copper(I) complex with <b>L(O)OH</b> as ligand reacts with dioxygen first to a hydrogen bond stabilized <i>trans</i>-<i>μ</i>-1,2-peroxido dicopper(II) complex, which rapidly converts to a bis(<i>μ</i>-oxido) dicopper(III) complex.</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 10","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejic.202400804","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143741405","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}
Wenqing Wei, Mei Liu, Wanxu Zhang, Yongzhuo Zheng, Yurui Lu, Fengwan Guo, Juan Wang
{"title":"Self-Trapped Exciton Emission Based on Halogen-Substituted Metal Halides","authors":"Wenqing Wei, Mei Liu, Wanxu Zhang, Yongzhuo Zheng, Yurui Lu, Fengwan Guo, Juan Wang","doi":"10.1002/ejic.202400820","DOIUrl":"https://doi.org/10.1002/ejic.202400820","url":null,"abstract":"<p>Recently, organic-inorganic hybrid metal halides (OIHMs) have been effective white light emitters. Still, the toxicity and instability of lead halides limit their applications. Sb has a relatively similar structure to Pb making it a better substitution. In this work, we synthesized zero-dimensional antimony-based OIMHs (BTBAC)<sub>2</sub>SbCl<sub>5</sub> and (BTBAB)<sub>2</sub>SbBr<sub>5</sub> [BTBA<sup>+</sup> (BTBA<sup>+</sup>=benzyl tributyl ammonium ion)]. The chloride photoluminescence quantum yield (PLQY) is 72.69 % and that of bromide is 17.33 %. Spectral tunability from red to yellow is observed after halogen substitution. Density-functional theory (DFT) calculations show that halogens change the bandgap structure from (BTBAC)<sub>2</sub>SbCl<sub>5</sub> direct bandgap to (BTBAB)<sub>2</sub>SbBr<sub>5</sub> indirect bandgap. In addition, (BTBAC)<sub>2</sub>SbCl<sub>5</sub> has excellent thermal stability at 455.15 K and optical properties with strong electron-phonon coupling producing broadband self-trapped exciton (STE) emission. By mixing (BTBAC)<sub>2</sub>SbCl<sub>5</sub> with a commercial phosphor, a white LED with a color rendering index of 87 was created. We have demonstrated the photoluminescence properties of OIMH materials in terms of the series of halogen atoms. This work injects new innovative ideas for the design of novel photoluminescent materials.</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 11","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143822097","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":"Mononuclear Pt(II) Complexes and [Pt-Ag-Pt] Cluster: Controllable Syntheses, Structural Transition and Luminescence Modulation","authors":"Xin-Tong Lv, Jian-Gong Huang, Deng-Ke Cao","doi":"10.1002/ejic.202400714","DOIUrl":"https://doi.org/10.1002/ejic.202400714","url":null,"abstract":"<p>Complexes [Pt(moppy)(PPh<sub>2</sub>Py)Cl] (<b>1</b>), [Pt(moppy)(PPh<sub>2</sub>Py)]PF<sub>6</sub> (<b>2</b>) and [Pt<sub>2</sub>(moppy)<sub>2</sub>(CH<sub>3</sub>CN)<sub>2</sub>Ag(<i>μ</i>-PPh<sub>2</sub>Py)<sub>2</sub>](PF<sub>6</sub>)<sub>3</sub> (<b>3</b>) have been synthesized through choosing suitable experimental condition to modulate the coordination mode of PPh<sub>2</sub>Py. Crystal structures indicate that <b>1</b> and <b>2</b> show distinct mononuclear structures, and complex <b>3</b> is a [Pt−Ag-Pt] cluster. In a CH<sub>2</sub>Cl<sub>2</sub>–H<sub>2</sub>O mixed solvent, complexes <b>1</b> and <b>2</b> can be interconverted upon alternately adding AgPF<sub>6</sub> and NaCl. Complex <b>3</b> can dissociate into complex <b>2</b> in solution. These complexes reveal different luminescence. In deaerated acetone, complex <b>1</b> is non-luminescent, while <b>2</b> show green luminescence with main emission bands at 511 and 534 nm. Complexes <b>1</b> and <b>2</b> in solid state show similar green luminescence, but significant differences in quantum yield, <i>Φ</i>=7.4 % for <b>1</b>, and <i>Φ</i>=17.6 % for <b>2</b>. Compared to <b>1</b> and <b>2</b>, complex <b>3</b>⋅CH<sub>3</sub>COCH<sub>3</sub> exhibits yellow solid-state luminescecne (<i>Φ</i>=14.1 %). In this paper, we discuss structural transitions among complexes <b>1</b>–<b>3</b> and luminescence modulation.</p>","PeriodicalId":38,"journal":{"name":"European Journal of Inorganic Chemistry","volume":"28 5","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431228","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}
Oliver A. Müller, Marcel J. P. Schmitt, Christoph Riehn, Sabine Becker
{"title":"Front Cover: A Reversibly Photoswitchable Zinc Metallocycle based on Azobenzene (Eur. J. Inorg. Chem. 2/2025)","authors":"Oliver A. Müller, Marcel J. P. Schmitt, Christoph Riehn, Sabine Becker","doi":"10.1002/ejic.202580201","DOIUrl":"https://doi.org/10.1002/ejic.202580201","url":null,"abstract":"<p><b>The Front Cover</b> highlights the novel azobenzene-based ligand 3,3’-azobenz(BPA)<sub>2</sub> (<b>1</b>). Upon reaction with Zn(BF<sub>4</sub>)<sub>2</sub> and ZnCl<sub>2</sub>, the metallocycle [Zn<sub>2</sub>(<b>1</b>)<sub>2</sub>)](BF<sub>4</sub>)<sub>4</sub> and the linear complex [{ZnCl<sub>2</sub>}<sub>2</sub>(<b>1</b>)] are formed (shown left and right). Both complexes retain the reversible photoswitchability of the ligand and do not disassemble during photoisomerization. Reversible photoisomerization was observed with NMR and UV/Vis spectroscopy, which spectra are shown schematically in the background. More information can be found in the Research Article by S. Becker and co-workers.\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 2","pages":""},"PeriodicalIF":2.2,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejic.202580201","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143114831","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}