Unlocking the full potential of rechargeable magnesium batteries has been partially hindered by reliance on chloride-based complex systems. Despite high anodic stability these electrolytes, they are corrosive toward metallic battery components, which reduce their practical electrochemical window. Following our new design concept involving boron cluster anions, monocarborane CB11H12(-) produced first halogen-free, simple-type Mg salt that is compatible with metal and displays an oxidative...

Abstract Unlocking the full potential of rechargeable magnesium batteries has been partially hindered by reliance on chloride‐based complex systems. Despite high anodic stability these electrolytes, they are corrosive toward metallic battery components, which reduce their practical electrochemical window. Following our new design concept involving boron cluster anions, monocarborane CB 11 H 12 − produced first halogen‐free, simple‐type Mg salt that is compatible with metal and displays an...

A mild protocol for the palladium-catalyzed Buchwald−Hartwig amidation of icosahedral carboranes is described. Employing 2-dicyclohexylphosphino-2′-(N,N-dimethylamino)biphenyl (1) as a ligand and K3PO4 base, benzamide, trifluoroacetamide, acetamide, formamide were coupled to series mono- di-iodo furnishing respective carborane derivatives in good excellent yields. Subsequent base-mediated saponification trifluoroacetamide was shown provide free aminocarboranes. The structures...

Abstract Clinically there is a need for local anesthetics with greater specificity of action on target cells and longer duration. We have synthesized series anesthetic derivatives we call boronicaines in which the aromatic phenyl ring lidocaine was replaced ortho ‐, meta C,C’‐dimethyl ‐ para ‐carborane clusters. The boronicaine were tested their analgesic activity compared using standard procedures mice following plantar injection. compounds differed order: ortho‐ carborane = meta‐ >...

The effective and responsible educational application of ChatGPT other generative artificial intelligence (GenAI) tools constitutes an active area exploration. This study describes assesses the implementation a structured, GenAI-assisted scientific essay writing assignment in nucleic acid biochemistry. Briefly, students created, evaluated, iteratively refined essays response to feedback independent literature research, identifying several strengths shortcomings large language model citation...

Herein we report the use of carboranes to significantly increase potency small molecule inhibitors nicotinamide phosphoribosyltranferase (Nampt), an enzyme that is central metabolism and cell survival. We compare inclusion carborane with other similarly sized substituents demonstrate that, compared their purely organic counterparts, these molecules exhibit up 10-fold greater antiproliferative activity against cancer cells in vitro a 100-fold Nampt inhibition.

This study explores the incidence and nature of self-plagiarism across various disciplines. Using Retraction Watch data, we analyze retraction times, authorship patterns, disciplinary differences, geographical origin manuscripts retracted due to duplications image, complete article or parts text. We find that image entire are primary causes self-plagiarism-related retractions. Duplication is most prevalent in social sciences business. In biomedical fields, duplication main issue, with...

Optical reflectance measurements were performed to determine the hydrogen response characteristics of 20-nm-thick Pd-Au (Ag) films. The displayed a strong dependence on alpha, mixed alpha/beta, and beta Pd-hydride phases formed in time peaks alpha --> phase transition region (1625 s at 0.4% H(2) for Pd(0.94)Ag(0.06) 405 1% Pd(0.94)Au(0.06)), consistent with critical slowing down phenomena. was shifted inhibited by changing alloy element Au increasing its corresponding content 40 atom %,...

Protonation of the polyhedral anion [closo-B10H10]2– under superacidic conditions apparently generates an electrophilic intermediate, [B10H13]+, that forms 6-R-nido-B10H13 (R = aryl, alkyl, triflate) derivatives by aromatic substitution, C–H bond activation, or ion-pair collapse, respectively. The proposed mechanism formation via boranocation [B10H13]+ is discussed. synthesis carboranes, starting from decaboranes, and single-crystal X-ray diffraction analyses several decaboranes carboranes...

As a continuation of work on metallacarborane-based molecular motors, the structures substituted bis(dicarbollyl)nickel complexes in NiIII and NiIV oxidation states were investigated solution by fluorescence spectroscopy. Symmetrically positioned cage-linked pyrene molecules served as fluorescent probes to enable observation mixed meso-trans/dl-gauche (pyrene monomer fluorescence) dl-cis/dl-gauche (intramolecular excimer with residual cage conformations nickelacarboranes states,...

8-Iodo-1,2-dicarba-closo-dodecaborane (7) was prepared in three steps starting from decaborane-14 with 20% overall yield. In the presence of nucleophiles, compound 7 undergoes selective removal boron vertex position para to iodine substituent form anionic nido-carborane 1-iodo-7,8-dicarba-nido-undecaborate. Capping corresponding dicarbollide dianion BI3 led formation new carborane, 3,10-diiodo-1,2-dicarba-closo-dodecaborane (15). The same reacts cobalt and nickel acetylacetonates anhydrous...

Right to the core: A ruthenium(I) complex of corannulene, prepared in a solvent-free environment, exhibits two coordination modes bowl: η2-rim and η1-hub (see picture for hub-coordinated complex; Ru purple, O red, C gray, H white). The latter represents first example transition-metal center binding only fullerene-like interior an open geodesic polyarene. Supporting information this article is available on WWW under http://www.wiley-vch.de/contents/jc_2002/2006/z602568_s.pdf or from author....

Highly electrophilic ruthenium(I) mixed carbonyl carboxylate complexes exhibit catalytic activity in the cyclopropanation of styrene with methyl phenyldiazoacetate. A particular advantage these catalysts is their propensity to enhance vinylogous reactivity reactions vinyldiazoacetates. The study was conducted on four known and new complexes, namely, [Ru2(O2C(2,3,4-F)3C6H2)2(CO)5], [Ru2(O2C(2,4,6-F)3C6H2)2(CO)5], [Ru2(O2CC6F5)2(CO)5], [Ru2(O2C(3,5-CF3)2C6H3)2(CO)4]. All have been prepared by...

The first X-ray structural characterization of an alkyl-substituted corannulene, namely, 1,3,5,7,9-penta-tert-butylcorannulene (C40H50), has been accomplished. addition bulky tert-butyl groups to the corannulene core flattens bowl and affects solid-state packing. presence two enantiomers, in positional disorder C40H50 bowls structure, prevented acquisition accurate geometric parameters this open geodesic polyarene. Therefore, DFT calculations have used describe its molecular geometry access...

ADVERTISEMENT RETURN TO ISSUEPREVNoteNEXTCorannulene: A Preference for exo-Metal Binding. X-ray Structural Characterization of [Ru2(O2CCF3)2(CO)4·(η2-C20H10)2]Marina A. Petrukhina, Yulia Sevryugina, Andrey Yu. Rogachev, Edward Jackson, and Lawrence T. ScottView Author Information Department Chemistry, University at Albany, 1400 Washington Avenue, New York 12222-0100, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467-3860 Cite this: Organometallics 2006, 25, 22,...

Abstract A novel route for synthesis of B‐mercaptocarboranes is described. The reaction proceeds through Pd‐catalyzed iodine exchange with the sulfur nucleophile TIPS–SH in mono‐ and diiodinated ortho ‐, meta para ‐carboranes. Self‐assembled monolayers selected on a gold surface were analyzed by X‐ray photoelectron spectroscopy their water contact angles assessed.

Effective utilization of [closo-B12H12](2-) derivatives in targeted drug delivery applications depends upon an efficient strategy to differentiate at least one the 12 vertices on B12(2-) core. Precursor molecules must also be able withstand initial harsh hydrogen peroxide treatment necessary for hydroxylation B-H vertices. We report here a method preparation ammonio derivative [closo-B12(OH)11NH3](-) and demonstrate its utility construction scaffold. Treatment precursor [closo-B12H11NH3](-)...

The carboxylate ligand-exchange reaction of copper(I) trifluoroacetate by 3,5-difluorobenzoate yielded a new product, [Cu(O2C(3,5-F)2C6H3)] (1). Single crystals 1 suitable for X-ray structural characterization were obtained sublimation-deposition procedures at 230 degrees C. An diffraction study revealed remarkable planar hexanuclear core supported bridging carboxylates, the first such type among other known carboxylates. Cu...Cu distances within range from 2.7064(8) to 2.8259(8) A and fall...

The X-ray crystallographic characterization and solid state photoluminescence (PL) study of three new tetranuclear copper(I) clusters, [Cu4(O2CR)4], R = (3-F)C6H4 (1), (2,3,4-F)3C6H2 (2), CF3/C6F5 (3), revealed a dependence PL on the structural type.

The first example of a reversible [Cu(4)] <--> [Cu(6)] interconversion for polynuclear copper(I) complexes under controlled experimental settings is reported. It illustrates the key role specific crystal growth conditions accessing target cluster nuclearity that consequently determines physical properties resulting solid state products. Thus, when benzoate crystallizes from 1,2-dichlorobenzene solution at room temperature, it forms [Cu(4)]-core based crystalline material,...

A number of monosubstituted n-(triphenylphosphonio)-7,8-dicarba-nido-undecaboranes (2a, n = 1; 2b, 3; 2c, 5; 2d, 9) were prepared via a cross-coupling reaction between the tetrabutylammonium iodo-7,8-dicarba-nido-undecaborates (1a-d) and PPh3 in presence Pd(PPh3)4 catalyst. The substitution rate was found to depend on iodine position carborane cage. Under similar conditions, 5,6-diiodo- (3) 9,11-diiodo-7,8-dicarba-nido-undecaborate (5) anions exclusively yielded monosubstitution products...

This study explores the evolution of publication practices associated with SARS-CoV-2 research papers, namely, peer-reviewed journal and review articles indexed in PubMed their preprints posted on bioRxiv medRxiv servers: a total 4,031 article-preprint pairs. Our assessment various delays during January 2020 to March 2021 period revealed early bird effect that lies beyond involvement any publisher policy action is directly linked emerging nature new 'hot' scientific topics. We found when...