Baby Sainaba Arppitha, Venkateswarulu Mangili, Bhandari Pallab, Clegg Jack K, Sarathi Mukherjee Partha
Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560012, India.
School of Chemistry and Molecular Biosciences, The University of Queensland-St. Lucia, St. Lucia, Queensland 4072, Australia.
Angew Chem Int Ed Engl. 2024 Jan 2;63(1):e202315572. doi: 10.1002/anie.202315572. Epub 2023 Nov 30.
Through coordination-driven self-assembly, aesthetically captivating structures can be formed by tuning the length or flexibility of various components. The self-assembly of an elongated rigid terphenyl-based tetra-pyridyl ligand (L1) with a cis-Pd(II) acceptor produces an [M L1 ] triangular orthobicupola structure (1). When flexibility is introduced into the ligand by the incorporation of a -CH - group between the dipyridylamine and terphenyl rings in the ligand (L2), anunique [M L2 ] water-soluble 'intertwined cubic structure' (2) results. The inherent flexibility of ligand L2 might be the key factor behind the formation of the thermodynamically stable and 'intertwined cubic structure' in this scenario. This research showcases the ability to design and fabricate novel, topologically distinctive molecular structures by a straightforward and efficient approach.
通过配位驱动的自组装，通过调节各种组分的长度或柔韧性，可以形成具有美学吸引力的结构。一种基于刚性联三苯的细长四吡啶配体（L1）与顺式钯（II）受体的自组装产生了一种[M L1]三角形正八面体结构（1）。当通过在配体（L2）的二吡啶胺和联苯环之间引入一个-CH -基团而将柔韧性引入配体时，会产生一种独特的[M L2]水溶性“缠绕立方结构”（2）。在这种情况下，配体L2固有的柔韧性可能是形成热力学稳定的“缠绕立方结构”的关键因素。这项研究展示了通过一种直接而有效的方法设计和制造新颖的、拓扑独特的分子结构的能力。
