Kato Masako
Department of Applied Chemistry for Environment, Kwansei Gakuin University, 1 Gakuen Uegahara, Sanda, Hyogo 669-1330, Japan.
IUCrJ. 2024 Jul 1;11(Pt 4):442-452. doi: 10.1107/S2052252524003658.
Platinum(II) complexes of square-planar geometry are interesting from a crystal engineering viewpoint because they exhibit strong luminescence based on the self-assembly of molecular units. The luminescence color changes in response to gentle stimuli, such as vapor exposure or weak mechanical forces. Both the molecular and the crystal designs for soft crystals are critical to effectively generate the chromic luminescence phenomenon of Pt(II) complexes. In this topical review, strategies for fabricating chromic luminescent Pt(II) complexes are described from a crystal design perspective, focusing on the structural regulation of Pt(II) complexes that exhibit assembly-induced luminescence via metal-metal interactions and structural control of anionic Pt(II) complexes using cations. The research progress on the evolution of various chromic luminescence properties of Pt(II) complexes, including the studies conducted by our group, are presented here along with the latest research outcomes, and an overview of the frontiers and future potential of this research field is provided.
从晶体工程的角度来看,平面正方形几何结构的铂(II)配合物很有趣,因为它们基于分子单元的自组装表现出强烈的发光。发光颜色会因温和刺激(如暴露于蒸汽或受到微弱机械力)而发生变化。对于软晶体而言,分子设计和晶体设计对于有效产生铂(II)配合物的变色发光现象都至关重要。在这篇专题综述中,从晶体设计的角度描述了制备变色发光铂(II)配合物的策略,重点关注通过金属 - 金属相互作用表现出自组装诱导发光的铂(II)配合物的结构调控,以及使用阳离子对阴离子铂(II)配合物进行结构控制。本文展示了包括我们团队开展的研究在内的铂(II)配合物各种变色发光性质演变的研究进展以及最新研究成果,并对该研究领域的前沿和未来潜力进行了概述。