Li Changan, Ekanayake Akalanka B, Chu Qianli R, Swenson Dale C, Tivanski Alexei V, MacGillivray Leonard R
Department of Chemical Engineering, Columbia University in the City of New York, New York, New York, 10027, USA.
Department of Chemistry, University of Iowa, Iowa City, Iowa, 52242, USA.
Angew Chem Int Ed Engl. 2025 Jun 24;64(26):e202419875. doi: 10.1002/anie.202419875. Epub 2025 May 2.
The exploitation of noncovalent bonding in the solid state is attractive to generate one-dimensional (1D) wire-like assemblies of metals and uncover dynamic and physical properties of such intriguing structures. Herein, we describe a metal-organic crystal based on Ag(I) ions that assemble to be organized into 1D wire-like assemblies maintained by argentophilic interactions. UV-light irradiation of the crystal composed of the 1D structures results in a single-crystal-to-single-crystal (SCSC) photodimerization that transforms the 1D periodic metal arrays to isolated metal dimers. The structural reconfiguration creates small voids in the crystal and the resulting solids exhibit a substantial increase in softness up to 60%.
利用固态中的非共价键来生成金属的一维（1D）线状组装体，并揭示此类有趣结构的动态和物理性质，这很有吸引力。在此，我们描述了一种基于Ag(I)离子的金属有机晶体，这些离子组装形成由亲银相互作用维持的一维线状组装体。由这些一维结构组成的晶体经紫外线照射会发生单晶到单晶（SCSC）光二聚反应，将一维周期性金属阵列转变为孤立的金属二聚体。这种结构重排会在晶体中产生小空隙，所得固体的柔软度大幅增加，最高可达60%。
