Linear neutral platinum–acetylide moiety: beyond the links

Abstract

In this feature article, brief highlights of research progress on the linear neutral platinum-acetylide moiety, trans-Pt(PR3)2(C≡CR')2, are presented. Due to its unique characteristics such as the well-defined linear geometry, synthetic accessibility, and intriguing photoproperties, this type of platinum-acetylide moiety has been extensively investigated in many respects from supramolecular chemistry to materials science during the past two decades. However, compared with the extensively studied charged platinum-acetylide complexes, the linear neutral platinum-acetylide moiety has been less reviewed. Based upon our recent progress in platinum chemistry, we provide herein a brief review on the linear neutral platinum-acetylide building block. This feature article will focus on its role as a linkage building block, but beyond the links. Three aspects including complex architectures composed of platinum-acetylide links, platinum-acetylide bridged multichromophoric arrays, and supramolecular self-assembly of platinum-acetylide building blocks are discussed.

Control over the Self‐Assembly Modes of PtII Complexes by Alkyl Chain Variation: From Slipped to Parallel π‐Stacks

“…[21][22][23][24][25][26][27][28][29][30] These systems have a strong propensity to aggregate in solution and in the solid state via Pt•••Pt and/or other secondary forces, as recently shown for various classes of complexes in a comprehensive review by Yam and co-workers. 31 Among them, the self-assembly features of hydrophobic Pt(II) complexes with acetylide, [32][33][34][35][36] bidentate, [37][38][39] tridentate N-donor, [40][41][42] and cyclometalating ligands [43][44][45] are relatively well understood.…”

Facile Construction of Structurally Defined Porous Membranes from Supramolecular Hexakistriphenylamine Metallacycles through Electropolymerization

“…Moreover,i th as proven that the thicker films feature fewer defectsa nd allow for ab etter size-selective discrimination. [9] Thus poly-3 films with different thicknesses were prepared firstly.T he surface thickness measured by using ap rofilometer is proportional to the amine surface coverage calculated by the integration of the N 0/ + electrochemical peak (100 nm for 5.5 10 À10 mol cm À2 ). This meanst hat as urface coverage of 0.9 10 À10 mol cm À2 of the macrocyclic monomer (each monomer hass ix TPAu nits) will result in films with around1 00 nm thickness.…”

“…Recently,o ur research interestshave turned to the fabrication of pattern-arranged microstructures from pre-designed small molecules. [9] These materialsa re of special significance because of their wide applications in the area of electronic devices, photonic crystals, and cell biology research, and so forth. [10] Particularly,t he highly ordered porouss tructures, which have found applications in ion exchange, ultrafiltration, and catalysis, have attracted much attention.…”

Organometallic rotaxane dendrimers with fourth-generation mechanically interlocked branches

“…We used organometallic [2] rotaxane 1 (Fig. 2) as the basic precursor for the divergent dendrimer growth for the following reasons: (i) 1 can be quickly synthesized by using Ogoshi's available pillar [5]arene and its neutral alkyl chain guest (20)(21)(22); (ii) 1 contains a platinum-acetylide unit that prevents the macrocycle from escaping the thread; (iii) 1 can react with a free alkyne to generate a stable organometallic bond in good yield under mild conditions (23)(24)(25); (iv) 1 contains protected alkynes that can be gently exposed for dendrimer growth; and…”