Metal–Helix Frameworks Formed by μ3‐NO3− with Different Orientations and Connected to a Heterometallic CuII10DyIII2 Folded Cluster. Issue 46 (26th July 2019)

• Record Type: Journal Article
• Authors: Wang, Hai‐Ling; Zhu, Zhong‐Hong; Ma, Xiong‐Feng; Zou, Hua‐Hong; Liang, Fu‐Pei
• Is Part Of: Chemistry. Volume 25:Issue 46(2019)
• Page Start: 10813
• Page End: 10817
• Publication Date: 2019-07-26
• Subjects: connection -- double-helix chain -- folded clusters -- metal–helix frameworks -- nanotechnology; Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201902096
• Languages: English
• ISSNs: 0947-6539

Abstract

Abstract: Metal nanoclusters have a certain rigidity due to their specific coordination patterns and shapes; thus, they face extreme difficulty in folding into a specific direction to form a double‐helix structure and in further interconnecting to form metal–helix frameworks (MHFs). To date, no MHFs have been produced by the formation of heterometallic clusters. Selecting the appropriate "bonding molecules" to bond metal nanoclusters in a specific multiple direction is one of the most effective strategies for designing synthetic MHFs. In this study, we realized for the first time the control of different orientations of μ 3 ‐NO3 − to join heterometallic clusters (Cu10 Dy2 ) and subsequently form a left‐handed double helix chain, which further joins to form MHFs. In the structure of the MHFs, four different directions of bridging μ 3 ‐NO3 − exist, three of which are involved in the linkage of the double‐helix chain. Each μ 3 ‐NO3 − is connected to three adjacent Cu10 Dy2 . Herein, we extend a new method for designing synthetic double‐helix structures and MHFs, thereby further laying the foundation for the development of similar DNA double‐helix structures and nucleic acid secondary structures in vitro. Abstract : Keep control ! Control of different orientations of μ 3 ‐NO3 − has been realized to join heterometallic clusters (Cu10 Dy2 ) and subsequently form a left‐handed double‐helix chain, which further joins to form metal–helix frameworks (MHFs). Four different directions of bridging μ 3 ‐NO3 − exist, three of which are involved in the linkage of the double‐helix chain (see figure).