Confining lithium polysulfide intermediates is one of the most effective ways to alleviate the capacity fade of sulfur-cathode materials in lithium-sulfur (Li-S) batteries. To develop long-cycle Li-S batteries, there is an urgent need for material structures with effective polysulfide binding capability and well-defined surface sites; thereby improving cycling stability and allowing study of mo...

Reaction of pyridine with well defined magnesium hydride species results in heterocycle dearomatisation by a hydride transfer which occurs with the formation of magnesium compounds containing 1,2- and 1,4-dihydropyridide anions as the respective kinetic and thermodynamic products.

, 504 (2014); 344 Science et al. P. Morten Hundt Vibrationally Promoted Dissociation of Water on Ni(111) This copy is for your personal, non-commercial use only. clicking here. colleagues, clients, or customers by , you can order high-quality copies for your If you wish to distribute this article to others here. following the guidelines can be obtained by Permission to republish or repurpose a...

Alcohol is the answer! An inactive, air-stable, dimeric molybdenum alkylidyne complex is activated toward ring-opening alkyne metathesis polymerization (ROAMP) by the addition of methanol. The ROAMP is compatible with water and phenol-containing substrates and with the in situ photochemical generation of alkyne monomers from cyclopropenones.

The activation of Ar-Si bonds in aryltrimethylsilane was investigated using a catalytic amount of t-Bu-P4 base and selective functionalizations of aryltrimethylsilanes in the absence of strong electron withdrawing groups on the aromatic rings were accomplished.

It has been shown (Heald, 1956b) in cerebral slices that duringtherapidbreakdown ofphosphocreatine, brought about by brief passage of electrical pulses (see Heald, 1954), there is an increased exchange of phosphate between the phosphates soluble in trichloroacetic acid and those in the insoluble residue. Thus in cerebral slices which had been allowed to metabolize radioactive inorganic phosphat...

Cellular delivery is crucial for the discovery and development of novel drugs and probes. However, the efficient and reliable delivery of bioactive molecules into cells remains both challenging and limited in scope. Therefore, there is an emerging interest to develop conceptually innovative approaches to precisely deliver relevant biomolecules to a target site. With this in mind, Matile and co-...

A novel class of DNA cleavage agents are reported that derive activity from amino acids tethered to a photoactive intercalator.

The UV-induced photocyclization of a dithienylethene-annulated N-heterocyclic carbene precatalyst enabled photoswitchable ring-opening polymerizations of ε-caprolactone and δ-valerolactone. The polymerizations proceeded efficiently in ambient light, however UV irradiation attenuated the reaction rate (k(amb)/k(UV) = 59). Subsequent visible light exposure reversed the photocyclization and restor...

An efficient iron-promoted alkylation of indoles with enamides has been accomplished under mild reaction conditions. The reaction proceeded with remarkable regioselectivity leading exclusively to substitution by indoles at α-position of enamides.