Dalton Transactions最新文献_第3页

Stepwise transformation of a redox-active tetradentate ONNO ligand in the coordination sphere of tin(IV)

IF 4 3区化学

Dalton Transactions Pub Date : 2025-03-27 DOI: 10.1039/d5dt00430f

Irina N Meshcheryakova, Anton Cherkasov, Maxim V. Arsenyev, Rinat R. Aysin, Alexey A Belikov, Artem Bogomyakov, Natalia A. Protasenko, Tatiana Kocherova, Svetlana V. Baryshnikova, Alexandr Vladimirovich Piskunov

{"title":"Stepwise transformation of a redox-active tetradentate ONNO ligand in the coordination sphere of tin(IV)","authors":"Irina N Meshcheryakova, Anton Cherkasov, Maxim V. Arsenyev, Rinat R. Aysin, Alexey A Belikov, Artem Bogomyakov, Natalia A. Protasenko, Tatiana Kocherova, Svetlana V. Baryshnikova, Alexandr Vladimirovich Piskunov","doi":"10.1039/d5dt00430f","DOIUrl":"https://doi.org/10.1039/d5dt00430f","url":null,"abstract":"New diorganotin(IV) complexes based on a redox-active tetradentate ONNO ligand, namely N,N'-bis(3,5-di-tert-butyl-2-hydroxyphenyl)-1,2-phenylenediamine (LH4) were synthesized. A methodology for the stepwise oxidation of tin(IV)-ONNO derivatives with a stoichiometric amount of p-benzoquinone was developed. This allowed the preparation of tin(IV) complexes containing the ligand in the tetraanionic doubly deprotonated form, in the dianionic state, and to carry out a controlled intraligand cyclization. It has been found that the diorganotin(IV) compounds with the dianionic form of the ONNO ligand have a ground singlet spin state, but an increase in temperature leads to a partial populating of the triplet state and a transition from the diamagnetic form of these complexes to the paramagnetic biradical ones. The UV-vis-NIR spectrum of L2-SnPh2 shows an intense absorption band in the range of 600 - 1400 nm, corresponding to the intraligand charge transfer (ILCT). The coordination ability of the solvent strongly influences the position of this solvatochromic band. Cyclic voltammetry revealed that this compound undergoes two sequential reversible single-electron oxidations and two sequential reversible single-electron reductions. This cyclic voltammetry remains unchanged even after 100 cycles have been performed.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"47 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713420","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}

引用次数: 0

Combination of 5-Amino-4-nitro-1,2-dihydro-3H-pyrazol-3-one and Azine Frameworks for Insensitive Heat-resistant Energetic Materials

IF 4 3区化学

Dalton Transactions Pub Date : 2025-03-27 DOI: 10.1039/d5dt00488h

Xiue Jiang, Ruihui Wang, Mingren Fan, Siwei Song, Yi Wang, Qinghua Zhang

引用次数: 0

Stabilization of lead-free bulk CsSnI3 perovskite thermoelectrics via incorporating of TiS3 nanoribbon clusters

IF 4 3区化学

Dalton Transactions Pub Date : 2025-03-27 DOI: 10.1039/d5dt00326a

Alexandra Ivanova, Lev Luchnikov, Dmitry S. Muratov, Margarita Golikova, Danila Saranin, Aleksandra Khanina, Pavel Gostishchev, Vladimir V Khovaylo

{"title":"Stabilization of lead-free bulk CsSnI3 perovskite thermoelectrics via incorporating of TiS3 nanoribbon clusters","authors":"Alexandra Ivanova, Lev Luchnikov, Dmitry S. Muratov, Margarita Golikova, Danila Saranin, Aleksandra Khanina, Pavel Gostishchev, Vladimir V Khovaylo","doi":"10.1039/d5dt00326a","DOIUrl":"https://doi.org/10.1039/d5dt00326a","url":null,"abstract":"The intense research for efficient low-temperature thermoelectric materials motivates the exploration of innovative compounds and composite systems. This study examines the effects of integrating low-dimensional titanium trisulfide (TiS3) into bulk tin-based halide perovskites (CsSnI3) for use in thermoelectric applications. The incorporation of small amounts of two-dimensional titanium trisulfide (TiS3) into CsSnI3 not only significantly enhanced the structural stability of the composite material and suppressed oxidation processes but also ensured that its initial electri-cal properties, including conductivity and the Seebeck coefficient, remained stable for at least 24 hours – unlike the pristine CsSnI3 sample. These findings emphasize the potential of low-dimensional TiS3 as an effective additive for stabilizing the thermoelectric performance of CsSnI3-based materials over time.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"1 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713421","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}

引用次数: 0

Investigating the Stable Structures of Yttrium Oxide Clusters: Yn Clusters as Promising Candidates for O₂ Dissociation

IF 4 3区化学

Dalton Transactions Pub Date : 2025-03-27 DOI: 10.1039/d5dt00357a

Varun Vinayak Deshpande, Debashis Bandyopadhyay, Vaibhav Chauhan, Gayatri Kumari, Soumen Bhattacharyya

{"title":"Investigating the Stable Structures of Yttrium Oxide Clusters: Yn Clusters as Promising Candidates for O₂ Dissociation","authors":"Varun Vinayak Deshpande, Debashis Bandyopadhyay, Vaibhav Chauhan, Gayatri Kumari, Soumen Bhattacharyya","doi":"10.1039/d5dt00357a","DOIUrl":"https://doi.org/10.1039/d5dt00357a","url":null,"abstract":"The study presents threshold photoionization (PI) spectra for a series of yttrium oxide clusters (YnOm, m = 2–8, n = 2–4) in the photon energy range of 192 to 300 nm (6.46 to 4.13 eV). Density Functional Theory (DFT) is employed to explore stable structures of these clusters. For YnO2 clusters, experimental PI spectra are compared with calculated spectra for the lowest-energy and near-lowest-energy structural isomers. Stable structures contributing to the experimental PI spectra are identified. Experimentally corrected adiabatic ionization energies for YmO2 clusters are determined. A newly identified lowest-energy structure for Y₂O₂ differs from previous literature, while larger clusters show better agreement, primarily varying in oxygen binding sites. Molecular oxygen-absorbed configurations of yttrium oxide clusters are generally unstable or energetically unfavorable, with O2 activation occurring via charge transfer from yttrium to oxygen. Climbing Image Nudged Elastic Band (CI-NEB) calculations indicate that YnO₂ forms in the ground state when an O₂ molecule is absorbed onto low- or under-coordinated sites—such as corners or edges—of Yn clusters. This process involves the dissociation of the O-O bond, followed by the adsorption of individual O atoms at different sites on the Yn clusters. Analysis of the total density of states (TDOS) and partial density of states (PDOS) reveals an increased orbital density near the Fermi level, indicating a strong reaction affinity between Y and O atoms.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"67 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713419","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}

引用次数: 0

An iron and lanthanide heterobimetallic coordination polymer derived electrocatalyst showing Enhanced activity and stability for oxygen reduction reaction

IF 4 3区化学

Dalton Transactions Pub Date : 2025-03-27 DOI: 10.1039/d5dt00376h

Xin Liu, Pengpeng Guo, Kun-Zu Yang, Yong-Zhi Su, Chao Xu, Jin-Gang Liu

{"title":"An iron and lanthanide heterobimetallic coordination polymer derived electrocatalyst showing Enhanced activity and stability for oxygen reduction reaction","authors":"Xin Liu, Pengpeng Guo, Kun-Zu Yang, Yong-Zhi Su, Chao Xu, Jin-Gang Liu","doi":"10.1039/d5dt00376h","DOIUrl":"https://doi.org/10.1039/d5dt00376h","url":null,"abstract":"It is desirable to develop noble-metal-free electrocatalysts with both excellent activity and stability for the oxygen reduction reaction (ORR) in clean energy conversion devices. Herein, we report an Fe, La co-doped FeLaNC electrocatalyst obtained by pyrolyzing a heterobimetallic coordination polymer [La2L3(CH3OH)4]∞ loaded on carbonized ZIF-8, which was synthesized from 1,1'-ferrocenedicarboxylic acid (H2L1) and lanthanide salt. The FeLaNC catalyst exhibited higher ORR activity with a half-wave potential (E1/2) of 0.874 V (vs. RHE) than the control catalyst FeNC (E1/2 = 0.864 V) without La dopant as well as commercial 20 wt% Pt/C (E1/2 = 0.862 V) in 0.1 M KOH solution, and FeLaNC displayed excellent stability with negligible half-wave potential decay after 15,000 potential cycles. When FeLaNC was applied as cathodic electrocatalyst in Zn-air batteries (ZABs), the open circuit voltage (OCV) and maximum power density (Pmax) of the FeLaNC-based ZABs achieved 1.46 V and 130 mW cm-2 , respectively, which were significantly higher than those of Pt/C (OCP = 1.41 V and Pmax = 120 mW cm-2). The introducing of La3+ into Fe-N-C catalysts not only promoted ORR activity by regulating the electron density of Fe-Nx sites but also enhanced the stability by eliminating the harmful radicals, which afforded an effective approach to prepare high-performance and stable electrocatalysts to be applied in energy conversion devices.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"57 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713422","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}

引用次数: 0

Selective Synthesis of a Heterotetranuclear Complex from a Macrocyclic Ligand with Multiple Identical Chelating Units

IF 4 3区化学

Dalton Transactions Pub Date : 2025-03-27 DOI: 10.1039/d5dt00623f

Kota Seki, Takashi Nakamura

引用次数: 0

Electrochemical sensing properties of cobalt-based coordination polymers for trace L-tryptophan in milk

IF 4 3区化学

Dalton Transactions Pub Date : 2025-03-26 DOI: 10.1039/d5dt00116a

Yichen Liu, Zhongqin Zhao, Rui Xin, Duqingcuo Li, Xiuyan Dong, Aparna Kushwaha, Mohammad Khalid Parvez, Mohammed S. Al-Dosari, Abhinav Kumar, Yong Huang

{"title":"Electrochemical sensing properties of cobalt-based coordination polymers for trace L-tryptophan in milk","authors":"Yichen Liu, Zhongqin Zhao, Rui Xin, Duqingcuo Li, Xiuyan Dong, Aparna Kushwaha, Mohammad Khalid Parvez, Mohammed S. Al-Dosari, Abhinav Kumar, Yong Huang","doi":"10.1039/d5dt00116a","DOIUrl":"https://doi.org/10.1039/d5dt00116a","url":null,"abstract":"Two Co(II)-based coordination polymers (CPs), {[Co3(L)2(H2O)8]·6H2O}n (1) and [Co(L)(H2O)(4,4′-dipy)0.5]n (2) (H3L = 2-(4-carboxyphenyl)-1H-imidazole-4,5-dicarboxylic acid and 4,4′-dipy = 4,4′-bipyridine), were synthesized via a hydrothermal method and characterized using single crystal X-ray diffraction (SC-XRD), powder X-ray diffraction (PXRD), and electrochemical methods. We obtained sensors 1@GCE and 2@GCE by modifying a glassy carbon electrode (GCE), and their electrochemical sensing behavior for L-tryptophan (L-Try) was investigated. The linear range for L-Try sensing was 1–10 μmol, and the limit of detection (LOD) was 0.039 μmol and 0.4 μmol, for 1 and 2, respectively. It was verified by theoretical calculation that their superior electrochemical sensing performance for L-Try was due to the influence of the structure of the CPs. The CP with more active sites and larger void area could interact with L-Try better, and thus, 1 exhibited an excellent sensing effect. In addition, as 1 and 2 successfully detected L-Try in the analysis of milk samples, these materials are expected to serve as high-performance electrochemical sensors for the detection of L-Try.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"21 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143702895","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}

引用次数: 0

Lanthanide-dependent photoluminescence and thin film fabrication of host CaWO4 micro-materials for potential indoor plant growth applications

IF 4 3区化学

Dalton Transactions Pub Date : 2025-03-26 DOI: 10.1039/d5dt00366k

Vanesa Ponce, Rik Van Deun, Liliana Patricia Fernandez, Griselda Narda, Carlos Alberto López, Germán Ernesto Gomez

{"title":"Lanthanide-dependent photoluminescence and thin film fabrication of host CaWO4 micro-materials for potential indoor plant growth applications","authors":"Vanesa Ponce, Rik Van Deun, Liliana Patricia Fernandez, Griselda Narda, Carlos Alberto López, Germán Ernesto Gomez","doi":"10.1039/d5dt00366k","DOIUrl":"https://doi.org/10.1039/d5dt00366k","url":null,"abstract":"A set of scheelite (CaWO4, CWO) doped samples with formula Ca1-2xLnxNaxWO4 (x = 0 and 0.1; Ln = Eu, Tb and Gd) (Eu@CWO, Tb@CWO and Gd@CWO) and doped phases with combinations LnxLn’y= Eu0.05Tb0.05, Eu0.05Gd0.05, Tb0.05Gd0.05 (Eu,Tb@CWO, Eu,Gd@CWO and Tb,Gd@CWO) and Eu0.033Tb0.033Gd0.033 (Eu,Tb,Gd@CWO) were prepared by a modified four-steps sol-gel method followed by calcination at mild temperature. The solids were characterized by X-ray powder diffraction (XRPD) and scanning-electron microscopy (SEM). An in-depth analysis of the structure and the impact of the synthesis approach on crystallite shape and size was carried out using Rietveld refinements. Besides, the solid-state photoluminescence was studied in terms of excitation, emission 4f-4f* transitions, lifetimes (obs), radiative and non-radiative constants (kr and knrad), energy transfer migration analysis and europium-quantum yields. Finally, the Eu-containing CWO samples were selected as a potential emitter device constructed by spin-coating technique giving rise a homogeneous coatings onto squared glass substrates. These results are promising for the desing and construction of devices based on tungstate micro-sized materials with emission properties and potential applications in plant cultivation LEDs, sensing, photocatalysis and solar cells.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"2 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143702896","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}

引用次数: 0

Charge optimization induces reconstruction via compounding Ni(OH)2 and CoP: a novel route to construct electrocatalysts for overall water-splitting

IF 4 3区化学

Dalton Transactions Pub Date : 2025-03-26 DOI: 10.1039/d5dt00056d

Hao Yin, Bingxian Wu, Xueyang Leng, Hong Gao, Jing Yao

{"title":"Charge optimization induces reconstruction via compounding Ni(OH)2 and CoP: a novel route to construct electrocatalysts for overall water-splitting","authors":"Hao Yin, Bingxian Wu, Xueyang Leng, Hong Gao, Jing Yao","doi":"10.1039/d5dt00056d","DOIUrl":"https://doi.org/10.1039/d5dt00056d","url":null,"abstract":"Electrolytic water-splitting has the advantages of high efficiency, environmental friendliness, and sustainability. It is becoming a leading approach for producing hydrogen. In order to improve the efficiency of water-splitting, a bifunctional electrocatalyst with high performance is needed. Herein, we present a novel approach to construct a bifunctional electrocatalyst for overall water-splitting by compounding Ni(OH)2 and CoP. This combination induced charge optimization, thereby leading to surface reconstruction. The nanocomposite displayed outstanding catalytic performance, benefiting from its more reactive surface area, improved conductivity and enhanced electrocatalytic activity. The resulting Ni(OH)2/CoP electrocatalyst exhibited excellent catalytic performance, with low overpotentials of 266 mV at 50 mA cm−2 for the OER and 71 mV at −10 mA cm−2 for the HER, and required only 1.54 V to reach 10 mA cm−2 in an overall water-splitting device, overtaking most of the recently reported Co- and Ni-based catalysts. This innovative strategy offers new directions for the design of efficient electrocatalysts.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"35 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143713426","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}

引用次数: 0

Divergent Reduction Chemistry of NHC-Aluminium(III) Hydrides

IF 4 3区化学

Dalton Transactions Pub Date : 2025-03-26 DOI: 10.1039/d5dt00379b

Fáinché Murphy, Alan Kennedy, Catherine Ellen Weetman

引用次数: 0