cuprate

Might the answer to these questions lead to the design of other useful cuprate reagents?

Reaction with lithium dimethyl cuprate gave the required 17-ethyl-16-keto functionality.

It was known that the high-temperature cuprate superconductors have a complex lattice structure.

The pseudogap state only sets in when the hole doping of the cuprate is neither too low nor too high.

High-temperature cuprate superconductors show great promise for high-efficiency motors, transmission lines and many other applications.

A simple example is potassium cuprate, KCuO, a blue-black solid.

This creates a lithium dialkyl cuprate compound.

The oxirane rings of carbohydrate 2,3-anhydro sugars are opened stereospecifically by lithium dimethyl cuprate.

Energy gaps in high-transition-temperature cuprate superconductors (Review) (2014)

Subsequent conjugate cuprate addition gave 2,6-cis-substituted piperidinones, while enolate alkylation furnished 2,3-trans-substituted dehydropiperidinones.

The lithium dialkyl cuprate is then treated with the second alkyl halide, which couples to the compound:

Keywords: synthesis, secoxyloganin, vinyl cuprate, oxidative cleavage.

I will discuss several recent experiments that use scanning magnetic microscopy to search for the effects of visons in highly underdoped cuprate superconductors.

Already, “second generation” cuprate wires are being used to make high-capacity cables for electric-power transmission, and lighter-weight generators for wind turbines.

Novel superconductors, notably high temperature cuprate superconductors, have an anisotropic superconducting order parameter which can change its sign depending on the direction.

Muon spin spectroscopy provides a way to measure the penetration depth, and so has been used to study high-temperature cuprate superconductors since their discovery in 1986.

The photographs show screwlike protrusions grown by a laboratory process on the surface of a crystal of a superconducting compound, yttrium barium cuprate.

As the engineers built the magnet, collaborators at the University of British Columbia prepared samples of a cuprate called yttrium barium copper oxide.

In 2014, Sachdev collaborated on a paper in Science which correctly predicted the appearance of charge-density waves in high temperature cuprate oxide superconductors.

This indicates that the black copper oxide comes partially from the cuprate and partially from the PCB copper circuitry.

Key words: piperidine alkaloids, carbohydrate auxiliary, domino Mannich–Michael reaction, conjugate cuprate and hydride addition, electrophilic substitution of enamines.

Many other cuprate superconductors have since been discovered, and the theory of superconductivity in these materials is one of the major outstanding challenges of theoretical condensed matter physics.

But she pointed out that it is not yet refined enough to predict how the balance of charge density waves and superconductivity vary with temperature, magnetic field or type of cuprate.

Protected Behavior in the Pseudogap State of Underdoped Cuprate Superconductors (with V. Barzykin), Phys.Rev.

Interest in cuprates sharply increased in 1986 with the discovery of high-temperature superconductivity in the Non-stoichiometric cuprate lanthanum barium copper oxide LaBaCuO.