Unprecedented C-F bond cleavage in perfluoronaphthalene during cobaltocene reduction.

The C-F bond activation of perfluoronaphthalene by 5-SIDipp led to the formation of dicationic salts with two fluorides (3·2HF2 ) or heptafluorodiborate (3·2B2F7) as counter-anions. The anion exchange reaction of 3·2B2F7 with NBuPF afforded a highly luminescent 3·2PF6. The addition of cobaltocene in the reaction mixture of 5-SIDipp and perfluoronaphthalene led to a distinct Co(I) species.

Intertwining of Localized () and Delocalized (π) Spins in Magnetically Frustrated Two-Dimensional Metal-Organic Frameworks.

Two-dimensional metal-organic frameworks (2D MOFs) are emerging as a new class of multifunctional materials for diversified applications, although magnetic properties have not been widely explored. The metal ions and organic ligands in some of the 2D MOFs are arranged in the well-known Kagome lattice, leading to geometric spin frustration. Hence, such systems could be the potential candidates to exhibit an exotic quantum spin liquid (QSL) state, as was observed in Cu(HHTP) (HHTP = hexahydroxytriphenylene), with no magnetic transition down to 38 mK.

Tridentate NacNac Tames T-Shaped Nickel(I) Radical.

The reaction of a nickel(II) chloride complex containing a tridentate β-diketiminato ligand with a picolyl group [2,6-iPr -C H NC(Me)CHC(Me)NH(CH py)]Ni(II)Cl (1)] with KSi(SiMe ) conveniently afforded a nickel(I) radical with a T-shaped geometry (2). The compound's metalloradical nature was confirmed through electron paramagnetic resonance (EPR) studies and its reaction with TEMPO, resulting in the formation of a highly unusual three-membered nickeloxaziridine complex (3). When reacted with disulfide and diselenide, the S-S and Se-Se bonds were cleaved, and a coupled product was formed through carbon atom of the pyridine-imine group.

Robust Spin Liquidity in 2D Metal-Organic Framework Cu (HHTP) with S= / Kagome Lattice.

On one hand electron or hole doping of quantum spin liquid (QSL) may unlock high-temperature superconductivity and on the other hand it can disrupt the spin liquidity, giving rise to a magnetically ordered ground state. Recently, a 2D MOF, Cu (HHTP) (HHTP - 2,3,6,7,10,11-hexahydroxytriphenylene), containing Cu(II) S= frustrated spins in the Kagome lattice is emerging as a promising QSL candidate. Herein, we present an elegant in situ redox-chemistry strategy of anchoring Cu (HHTP) crystallites onto diamagnetic reduced graphene oxide (rGO) sheets, resulting in the formation of electron-doped Cu (HHTP) -rGO composite which exhibited a characteristic semiconducting behavior (5 K to 300 K) with high electrical conductivity of 70 S ⋅ m and a carrier density of ~1.

Impact of complete mouth rehabilitation following Pankey Mann Schuyler versus HOBO Philosophy on Oral Health-Related Quality of Life using Oral Health Impact Profile-14: A randomized clinical trial.

Aim: Aim of this in vivo study was to assess the impact of two rehabilitation philosophies namely; Pankey Mann Schuyler (PMS) & Hobo Twin Stage (HOBO) on Oral Health-related Quality of life (OHRQoL) using Oral Health Impact Profile (OHIP 14).

Settings And Design: This was a randomized clinical trial.

Material And Methods: This study was designed based on the PICOT model.

Rehabilitation of acquired mandibular defect with two-piece, magnet-retained salivary reservoir.

Resection of large tumors involving mandible is the most common reason for mandibulectomy in patients. Adjunct therapies complicate the clinical situation and advocates innovations in conventional design concepts and treatment protocols. Xerostomia is one of the most common complications arising post-radiotherapy.

First-Row Transition Metal Complexes of a Phosphine-Silylene-Based Hybrid Ligand.

We have prepared two new silylene-phosphine-based hybrid ligands Si{N(R)CH(PPh)}{PhC(NBu)} [R = TMS {trimethylsilyl} () and TBDMS {-butyldimethylsilyl} ()], which possess two donor sites. Furthermore, the treatment of the bidentate ligand with base metal halides {FeBr, CoBr, NiCl·dme [nickel chloride(II) ethylene glycol dimethyl ether]} and with NiBr·dme [nickel bromide(II) ethylene glycol dimethyl ether] afforded four-coordinate six-membered metal complexes , respectively, which feature coordination from both Si(II) and P(III) sites. Subsequently, complexes [(FeBr)Si{N(SiMe)CH(PPh)}{PhC(NBu)}], [(CoBr)Si{N(SiMe)CH(PPh)}{PhC(NBu)}], [(NiCl)Si{N(SiMe)CH(PPh)}{PhC(NBu)}], and [(NiBr)Si{N(SiBuMe)CH(PPh)}{PhC(NBu)}] are studied for their redox and magnetic properties with the help of UV-vis spectroscopy, cyclic voltammetry, SQUID magnetometry, and theoretical calculations.

Coordination Flexibility Aided CO -specific Gating in an Iron Isonicotinate MOF.

Coordination flexibility assisted porosity has been introduced into an Iron-isonicotinate metal-organic framework (MOF), (Fe(4-PyC)  ⋅ (OH). The framework showed CO -specific gate opening behavior, which gets tuned as a function of temperature and pressure. The MOF's physisorptive porosity towards CO , CH , and N was investigated; it adsorbed only CO via a gate opening phenomenon.

Custom-fabricated nasal conformers and surgical stents in the management of midfacial acid burn injuries: A clinical report.

Acid burn injuries in the midfacial region cause contracture of the skin and nasal aperture, which can lead to nasal airway obstruction. Management of such complicated situations requires a multidisciplinary approach, including prosthetic intervention. This article describes a clinical treatment for fabricating a custom nasal conformer for a 28-year-old man who presented with a history of an acid burn injury leading to obstructed external nares and fusion of the tip and columella of the nose with the philtrum of the upper lip.

Utility versus futility of facebow in the fabrication of complete dentures: A systematic review.

Aim: The aim of this review was to investigate utility or futility of facebow for fabrication of complete denture prosthesis to maximise clinical efficiency and acceptability of complete dentures.

Settings And Design: Systematic review following PRISMA guidelines.

Materials And Methods: A study question was designed based on PICOT model which was used to evaluate whether facebow transfer is required or not for fabrication of complete denture prosthesis.

Ferromagnetic Order at Room Temperature in Monolayer WSe Semiconductor via Vanadium Dopant.

Diluted magnetic semiconductors including Mn-doped GaAs are attractive for gate-controlled spintronics but Curie transition at room temperature with long-range ferromagnetic order is still debatable to date. Here, the room-temperature ferromagnetic domains with long-range order in semiconducting V-doped WSe monolayer synthesized by chemical vapor deposition are reported. Ferromagnetic order is manifested using magnetic force microscopy up to 360 K, while retaining high on/off current ratio of ≈10 at 0.