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Two structurally new Lindqvist hexaniobate-templated silver thiolate clusters, [NbO@Ag(PrS)(CHCOO)] (Ag) and (HO)[NbO@AgKSO(HO)(PrS)(CHCOO)] (Ag), were synthesized using a facile one-pot solvothermal approach. Single crystal X-ray diffraction analyses revealed the presence of a classical Lindqvist-type [NbO] anion template, with PrS and CHCOO surface-protecting ligands in both silver clusters, which can further form two-dimensional Ag assembly and one-dimensional Ag chain packing structures. Both Ag and Ag clusters exhibited intriguing photothermal conversion properties and temperature-dependent emission behavior.
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http://dx.doi.org/10.1039/d4cc00681j | DOI Listing |
J Am Chem Soc
August 2025
Key Lab of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, State Key Lab of Crystal Materials, Shandong University, Ji'nan 250100, People's Republic of China.
The pervasive presence of toroidal architectures across scales, from molecular assemblies to cosmic formations, reveals a universal design principle that integrates aesthetic symmetry with functional topology in nature. Yet, constructing such hierarchical toroidal organization at the nanoscale, particularly for metal nanoclusters, remains an unmet challenge. We present an unprecedented wheel-shaped silver nanocluster, [(VO⊂VO)@Ag(BuPhC≡C)(SO)(DMF)] (), encapsulating an unparalleled hierarchical toroidal [VO⊂VO] polyoxovanadate (POV).
View Article and Find Full Text PDFScand J Gastroenterol
August 2025
Unit of Gastroenterology and Hepatology, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden.
Background: Dietary interventions promoting weight loss are central to managing Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD). While short-term benefits of various diets on liver health are well-documented, their long-term effects remain unclear. This study reports one-year follow-up results from a randomized controlled trial of a 12-week diet intervention.
View Article and Find Full Text PDFSex Reprod Healthc
September 2025
Department of Nursing, Umeå University, Linnaeus väg 9, 901 87 Umeå, Sweden; Department of Clinical Sciences, Division of Obstetrics and Gynecology, Umeå University, Klintvägen 10 901 87 Umeå, Sweden. Electronic address:
Objective: Despite strong evidence of the benefits, Sweden has limited access to midwifery continuity of care (MCoC), particularly in rural areas. There is a knowledge gap regarding how MCoC would function in a rural Swedish context. Therefore, this study aimed to explore midwives' personal and professional views on a MCoC model and its implementation within a rural context in northern Sweden.
View Article and Find Full Text PDFInorg Chem
August 2025
Key Laboratory of Polyoxometalate Science of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun 130024, P. R. China.
Density functional theory (DFT) calculations were employed to systematically investigate the electrochemical properties of a series of vanadium-oxide clusters, including Lindqvist-type polyoxovanadates (POVs), [VO(OCH)] (), [TiVO(OCH)] (), and [TiVO(OCH)] () as well as the cationic vanadium-oxide cluster [TiVO(OCH)] (). Analysis on the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) reveals that Ti modification shifts the electron-gaining center to Ti atoms, while V atoms remain the electron-losing centers. DFT calculations demonstrate that Ti modification effectively modulates the redox potentials of vanadium-oxide clusters and significantly broadens their electrochemical windows.
View Article and Find Full Text PDFDalton Trans
August 2025
Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia.
Zr-substituted polyoxometalates (Zr-POMs) with Lindqvist, Keggin and Wells-Dawson structures, (BuN)[{WOZr(μ-OH)}] (Zr-L), (BuN)[{PWOZr(μ-OH)}] (Zr-K) and (BuN)H[{PWOZr(μ-OH)}] (Zr-WD), can activate the environmentally friendly oxidant -butyl hydroperoxide (TBHP) and efficiently catalyse the oxidation of various thioethers to produce sulfoxides and sulfones. Ti- and Nb-substituted POMs are significantly less active than Zr-POMs. The activity and selectivity of Zr-POMs strongly depend on their structural type.
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