Structural diversity of copper(i)–ethylene complexes with 2,4-bis(2-pyridyl)pyrimidine directed by anions

Abstract

Novel four di-, tetranuclear and polymeric Cu(I)–bpprd/C2H4 complexes were anion-dependently prepared by the reactions of [Cu(C2H4)n]X (X = ClO4–, NO3–, BF4–) with 2,4-bis(2-pyridyl)pyrimidine (bpprd) in Me2CO under C2H4 and they...

Rare-earth metal ethylene and ethyne complexes

“…In addition, we are also curious about whether the rare-earth ethyne complexes can be prepared from the rare-earth ethylene complexes via the C–H bond activation or other pathways. To our knowledge, in contrast to the late-transition metal ethylene and ethyne complexes, 19,20 the early-transition metal ethylene analogues are less explored, 18,21 and no rare earth metal ethyne complexes have been reported. With this in mind, we carried out the studies on the synthesis of rare-earth metal ethylene and ethyne complexes.…”