title: Coinage metal complexes of 2-diphenylphosphino-3-methylindole.
abstract: Coordination of P,N indolyl-phosphine ligands to Au(I), Ag(I) and Cu(I) metal ions under weakly basic conditions results in easy deprotonation of the indolyl N-H function and effective formation of a family of homo- and heterobimetallic complexes MM'(PPh(2)C(9)H(7)N)(2) (M = M' = Au (2), Ag (5); M = Au, M' = Cu (3), Ag (4)). The latter (4) exists as an inseparable mixture of four different complexes, which are in equilibrium driven by slow dynamics. The reaction of silver(I) and copper(I) ions with PPh(2)(C(9)H(8)N) affords a rare tetranuclear Z-shaped cluster Ag(2)Cu(2)(PPh(2)C(9)H(7)N)(4) (6), which exhibits red luminescence in solid state (650 nm) and a weak dual emission in solution with the main component in the near-IR region (746 nm).
authors: University of Eastern Finland, Joensuu, 80101, Finland. igor.koshevoy@uef.fi
authors: Igor O
authors: IO
authors: Koshevoy
authors: Julia R
authors: JR
authors: Shakirova
authors: Alexei S
authors: AS
authors: Melnikov
authors: Matti
authors: M
authors: Haukka
authors: Sergey P
authors: SP
authors: Tunik
authors: Tapani A
authors: TA
authors: Pakkanen