Linear neutral platinum-acetylide moiety: beyond the links.

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.