The synthesis and characterisation of [Co(η-PCBu)(μ:η:η-PCBu)] (1) is described, featuring two cobalt atoms and three diphosphacyclobutadiene ligands. This compound is the first triple-decker sandwich complex which exclusively contains cyclobutadiene ligands.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1039/d2cc04601f | DOI Listing |
Commun Math Phys
January 2025
School of Mathematics and Statistics, Wuhan University, Wuhan, 430072 China.
We show that the communication cost of quantum broadcast channel simulation under free entanglement assistance between the sender and the receivers is asymptotically characterized by an efficiently computable single-letter formula in terms of the channel's multipartite mutual information. Our core contribution is a new one-shot achievability result for multipartite quantum state splitting via multipartite convex splitting. As part of this, we face a general instance of the quantum joint typicality problem with arbitrarily overlapping marginals.
View Article and Find Full Text PDFInorg Chem
January 2025
Institute for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, Würzburg 97074, Germany.
The reaction of the diborabenzene (DBB) nickel(0) pogo-stick complex [(η-DBB)Ni(CO)] () with a large excess of [Ni(CO)] yields the dark green, unstable dinickel(0) complex [(η-DBB)Ni(μ-CO)Ni(CO)] (), which loses one CO ligand to yield the purple, bimetallic Ni half-sandwich complex [(η-DBB)Ni(μ-CO)(η-CO)] (). The addition of the chromium aminoborylene complex [(OC)Cr{BN(TMS)}] (TMS = trimethylsilyl) to does not result in the expected borylene transfer but in the formation of the black Ni-Cr complex [(η-DBB)Ni(μ-CO)Cr(CO)] (), alongside the dimeric iminoborane [(TMS)BN(TMS)] (), which results from the rearrangement of the released BN(TMS) aminoborylene moiety. Furthermore, the oxidative addition of methyl triflate (MeOTf) to leaves the (η-DBB)Ni moiety intact and provides the ionic Ni half-sandwich complex [(η-DBB)NiMe(CO)]OTf (), while reaction with pentaphenylborole (PPB) yields the unique, dark-blue, unsymmetrical sandwich complex [(η-DBB)Ni(μ-CO)(η-PPB)] ().
View Article and Find Full Text PDFSpine J
January 2025
International Spine Study Group Foundation, Denver, Colorado, USA.
Background Context: Correcting sagittal malalignment in adult spinal deformity (ASD) is a challenging task, often requiring complex surgical interventions like pedicle subtraction osteotomies (PSOs). Different types of three-column osteotomies (3COs), including Schwab 3, Schwab 4, Schwab 4 with interbody cages, and the "sandwich" technique, aim to optimize alignment and fusion outcomes. The role of interbody cages in enhancing fusion and segmental correction remains unclear.
View Article and Find Full Text PDFPolymers (Basel)
December 2024
Metallurgical and Materials Engineering, Karadeniz Technical University, 61080 Trabzon, Turkey.
The introduction of 3D printing technology has broadened manufacturing possibilities, allowing the production of complex cellular geometries, including auxetic and curved plane structures, beyond the standard honeycomb patterns in sandwich composite materials. In this study, the effects of cell design parameters, such as cell geometry (honeycomb and auxetic) and cell size (cell thickness and width), are examined on acrylonitrile butadiene styrene (ABS) core materials produced using fusion deposition modeling (FDM). They are produced as a result of the epoxy bonding of carbon epoxy prepreg composite materials to the surfaces of core materials.
View Article and Find Full Text PDFNanomaterials (Basel)
January 2025
Department of Photonics, National Cheng Kung University, Tainan 70101, Taiwan.
Cancer diagnostics often faces challenges, such as invasiveness, high costs, and limited sensitivity for early detection, emphasizing the need for improved approaches. We present a surface-enhanced Raman scattering (SERS)-based platform leveraging inverted pyramid SU-8 nanostructured substrates fabricated via nanoimprint lithography. These substrates, characterized by sharp apices and edges, are further functionalized with (3-aminopropyl)triethoxysilane (APTES), enabling the uniform self-assembly of AuNPs to create a highly favorable configuration for enhanced SERS analysis.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!