The reduction of (Ph P)AuCl with NaBH in the presence of HSC(SiMe ) , leads to one of the largest metalloid gold clusters: Au S (PPh ) (1). Within 1 an octahedral Au core of gold atoms arranged as in Au metal is surrounded by 48 oxidized Au atoms of an Au S shell, a novel building block in gold chemistry. The protecting Au S shell is completed by additional 16 Au(PPh ) units, leading to a complete protection of the gold core. Within 1 the Au-Au distances get more molecular on going from the center to the ligand shell. Cluster 1 represents novel structural motives in the field of metalloid gold clusters which also are partly typical for metal atoms in metalloid clusters: M R (n>m).
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Chem Commun (Camb)
January 2025
Frontiers Science Center for High Energy Material, Key Laboratory of Cluster Science, Ministry of Education, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, No. 5, Zhongguancun South Street, Haidian District, Beijing 100081, P. R. China.
The development of solid-state electrolytes has become crucial for promoting the safety and performance of lithium-ion batteries. Herein, the substitution of nodal elements from Si to Ge significantly improved the lithium ionic conductivity in 2D metalloid organic frameworks, resulting in an enhancement of approximately one order of magnitude.
View Article and Find Full Text PDFInorg Chem
January 2025
MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, China.
A novel antimonotungstate (AT)-based heterometallic framework {[Er(HO)][Fe(Hpdc)(B-β-SbWO)]}·50HO (, Hpdc = pyridine-2,5-dicarboxylic acid) was obtained through a synergistic strategy of in situ-generated transition-metal-encapsulated polyoxometalate (POM) building units and the substitution reaction. Its structural unit is composed of a tetra-Fe-substituted Krebs-type [Fe(Hpdc)(B-β-SbWO)] subunit and two [Er(HO)] cations. This subunit can be regarded as a product of carboxylic oxygen atoms of Hpdc ligands replacing active water ligands in the [Fe(HO)(B-β-SbWO)] species.
View Article and Find Full Text PDFJ Hazard Mater
January 2025
School of Figheries, Aquaculture, and Aquatic Sciences, College of Agriculture, Auburn University, AL 36849, USA. Electronic address:
Thirteen elements were measured in 76 surface grab sediment samples and 90 segments of four cores from Lakes Erie and Ontario. By combining the data obtained previously from Lakes Superior, Michigan, and Huron, the spatial distribution, temporal trends, major influencing factors, anthropogenic enrichments, categorization, and ecological risks of target metals in sediment were evaluated for the Great Lakes region. Regionwide, Lake Ontario had the highest median concentrations for Ag, As, Cd, Zn, and Pb, while the highest Cr concentration was found in the Western Basin of Lake Erie.
View Article and Find Full Text PDFMikrochim Acta
January 2025
Key Laboratory of UV-Emitting Materials and Technology (Northeast Normal University), Ministry of Education, Changchun, 130024, P. R. China.
A novel dual-mode detection method for microRNA-21 was developed. Photoluminescent (PL) and multiphonon resonant Raman scattering (MRRS) techniques were combined by using ZnTe nanoparticles as signal probes for reliable detection. The catalytic hairpin assembly (CHA) strategy was integrated with superparamagnetic FeO nanoparticle clusters (NCs) to enhance sensitivity.
View Article and Find Full Text PDFAccess Microbiol
August 2024
Integrative Taxonomy and Microbial Ecology Research Group, Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, 741246, West Bengal, India.
sp. SLW1, a Gram-negative, aerobic, motile bacterium, was isolated from mangrove litterfall in Sundarbans mangrove. The draft genome is 5.
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