Heterobimetallic platinum–copper and platinum–silver transition metal complexes based on cis-[Pt](CCPh)2: an overview

Synthesis of Unsymmetric Bipyridine–PtII–Alkynyl Complexes through Post‐Click Reaction with Emission Enhancement Characteristics and Their Applications as Phosphorescent Organic Light‐Emitting Diodes

“…Design and synthesis Reaction of [Pt(5,5'-Me 2 bpy)(CCPh) 2 ] [17] with organic azide in the presence of CuSO 4 ·5 H 2 O and ascorbic acid led to the generation of the unsymmetric bipyridine-platinum(II)-alkynyl complexes 1 and 2 and the synthetic routes are shown in Scheme 1. Activation of the CC bond through copper(I) coordination to bis(arylalkynyl)platinum(II) that causes the bending of the ÀCCÀ unit from linearity is thought to facilitate the click reaction.…”

“…The performance of the devices fabricated from this new class of complexes with a triazole group are much better than those of the bis(arylalkynyl)platinum(II) complexes alone. [17] The current work represents a novel strategy to the rational design of metal complexes for the fabrication of PHOLEDs.…”

Copper(I) Alkyne and Alkynide Complexes

“…In the 1990s the terminology “organometallic π-tweezers” was introduced by our group in the literature. − ,− In this respect, bis­(alkynyl) transition-metal complexes of the type RCC–[M]–CCR ([M] = 14–16-valence-electron complex fragment, R = single-bonded organic or organometallic group − ) have come into use as organometallic bidentate chelating ligands (organometallic π-tweezers) for the stabilization of diverse low-valent metal fragments M′L n (M′ = groups 1, 2, and 4–12 elements of the periodic table; L = neutral or ionic organic or inorganic two-electron donor ligand; n = 0–4). In the thus accessible heterobimetallic {[M]­(μ-σ,π-CCR) 2 }­M′L n tweezer molecules (structural type H molecules, Scheme ) the alkynyl groups RCC act as σ donors to M and as π donors to M′ and hold the metals M (preferentially an early-transition-metal atom such as Ti, Zr, or Hf) and M′ (vide supra) in close proximity to each other.…”

Unique Metal‐Diyne, ‐Enyne, and ‐Enediyne Complexes: Part of the Remarkably Diverse World of Metal‐Alkyne Chemistry

“…For example, Fornies and co-workers (44,45,104,330) used the [Pt(C À À À À À À CR) 4 ] 2À unit to prepare a wide range of multimetallic assemblies. Lang and co-workers (111,(331)(332)(333)(334) 2 Ti} and subsequent p complexation to form p-tweezer systems, such as those shown in Fig. 5-6.…”