Hierarchical self-assembly of a radical naphthalenediimide-based N-heterocyclic carbene-Au(i) macrocycle. Issue 5 (8th February 2023)

• Record Type: Journal Article
• Authors: Wang, Chong; Zhu, Qing-Wen; Yu, Jian-Gang; Li, Xin; Li, Hao; Sun, Li-Ying; Han, Ying-Feng
• Is Part Of: Inorganic chemistry frontiers. Volume 10:Issue 5(2023)
• Page Start: 1457
• Page End: 1464
• Publication Date: 2023-02-08
• Subjects: Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/d2qi02685f
• Languages: English
• ISSNs: 2052-1553

Abstract

Abstract : A series of tertiary supramolecular architectures were constructed based on an NDI-derived NHC-Au(i ) macrocycle that exhibited redox-switchable properties in a one-electron redox process. Abstract : Here, we show that a naphthalenediimide skeleton can facilitate the hierarchical assembly of a derived metal N-heterocyclic carbene (NHC) macrocycle into diverse supramolecular architectures. The macrocycle exhibited solvent-dependent supramolecular isomerization, and two polymorphs with different stacking modes grown in DMF and MeCN were obtained. The coprecipitation of the obtained macrocycle and a cuprous bromide anion led to the formation of a tertiary structure. Through the donor–acceptor interactions between the electron-deficient macrocycle and electron-rich pyrene/naphthalene, two cocrystal complexes with different supramolecular systems were successfully fabricated. Moreover, the solid-state structure of the corresponding radical macrocycle unambiguously confirmed the existence of an ordered linear array extending from the discrete mononuclear NHC-Au(i ) macrocycle via multiple noncovalent interactions. Such a radical NHC-Au(i ) macrocycle can be readily generated upon a one-electron reduction.