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A 2D layer network assembled from an open dendritic silver cluster Cl@Ag11N24 and an N-donor ligand

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Abstract

Fruitful efforts have been made for the assembly of nanosized silver clusters, and the majority of which are protected by thiolates and alkynyl ligands. By comparison, the reported silver clusters or silver-cluster-based supramolecular networks protected by N-donor ligands are very rare because of the hard basicity of N-donor ligands with respect to the soft acid Ag(I). Here, by using an N-donor ligand, a 2D Cl@Ag11N24-based supramolecular network [Cl@Ag11(L)8X2 ]n (X = CF3COO for 1, NO3 for 2 and CF3SO3 for 3) has been constructed with a Ag–O bond as the linker. This high-nuclearity silver cluster Cl@Ag11N24 has an open dendritic structure with a high coordination ratio of the N atom, which is different from the well-established macrocycle, spheroidal cage and core–shell architectures based on silver–thiolate/alkynyl/phosphine clusters. The stability and assembly process of the 2D network has been studied by high-resolution electrospray mass spectrometry (HR-ESI-MS). Notably, 1 shows an intriguing dual-emission feature that is strongly influenced by different excitation wavelengths and temperatures. Significantly, this work sheds new light on the construction of novel silver clusters and supramolecular networks based on them and provides a kind of luminescent material.

Graphical abstract: A 2D layer network assembled from an open dendritic silver cluster Cl@Ag11N24 and an N-donor ligand

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Publication details

The article was received on 28 Aug 2019, accepted on 06 Oct 2019 and first published on 08 Oct 2019


Article type: Research Article
DOI: 10.1039/C9QI01100E
Inorg. Chem. Front., 2019, Advance Article

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    A 2D layer network assembled from an open dendritic silver cluster Cl@Ag11N24 and an N-donor ligand

    X. Li, H. Su and J. Xu, Inorg. Chem. Front., 2019, Advance Article , DOI: 10.1039/C9QI01100E

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