Gold catalysts have been found to catalyze the tandem assembly of arynes and terminal alkynes efficiently in the presence of CuI under mild reaction conditions to provide useful alkynylated biphenyl derivatives.

A new and smooth approach towards alkynylphosphine derivatives is described. It relies on the unprecedented catalytic coupling of secondary phosphine boranes with alkynyl bromides using the CuI/1,10-phenanthroline couple.

The authors describe a framework, based on the Ogden-Richards semiotic triangle, for understanding the relationship between the Unified Medical Language System (UMLS) and the source terminologies from which the UMLS derives its content. They pay particular attention to UMLS's Concept Unique Identifier (CUI) and the sense of "meaning" it represents as contrasted with the sense of "meaning" repre...

La teoria di Dirac dell’elettrone fa uso, come è noto, di una funzione d’onda a quattro componenti delle quali, quando si considerino movimenti lenti, due hanno valori trascurabili mentre le altre due obbediscono in prima approssimazione all’equazione di Schrödinger. In modo analogo una particella con momento angolare intrinseco s h 2π (s = 0, 12 , 1, 3 2 , . . .) è descritta nella meccanica qu...

Hole transport material (HTM) plays an important role in the efficiency and stability of perovskite solar cells (PSCs). Spiro-MeOTAD, the commonly used HTM, is costly and can be easily degraded by heat and moisture, thus offering hindrance to commercialize PSCs. There is dire need to find an alternate inorganic and stable HTM to exploit PSCs with their maximum capability. In this paper, a compr...

Two types of secondary building units of CuI (Cu2I2 and Cu4I4) were shown to generate 2D-coordination networks of (4,4)-topology (non-interpenetrated and interpenetrated) with exo-bidentate ligands that contain diamide as spacer.

An efficient and eco-friendly method has been developed for the synthesis of 1,4 disubstituted 1,2,3-triazoles using the eggshell-supported-Cu(I) metformin complex as a natural and heterogeneous catalyst. The catalyst prepared is characterized by FT-IR spectroscopy, SEM, and ICP techniques. Terminal alkynes were successfully reacted with alkyl chloride and sodium azide in the presence of CuI im...