The ligand enables the use of more stable trivalent samarium compounds, which are reduced to divalent samarium when exposed ...

Samarium (Sm), a rare earth metal, is important to organic chemists because of the ability of its divalent compounds to ...

Divalent samarium compounds are important reagents for reductive transformations in organic chemistry. However, currently, a high amount of this reagent is required in most reactions, and it also ...

In the skies over Al Ain, in the United Arab Emirates, pilot Mark Newman waits for the signal. When it comes, he flicks a few silver switches on a panel by his leg, twists two black dials, then punche ...

Here, we explore if the various types of geoengineering under consideration are too much of a risk to contemplate.