Construction of conducting bimetallic organic metal chalcogenides via selective metal metathesis and oxidation transformation

Yigang Jin, Yuhui Fang, Ze Li, Xiang Hao, Feng He, Bo Guan, Dongwei Wang, Sha Wu, Yang Li, Caiming Liu, Xiaojuan Dai, Ye Zou, Yimeng Sun and Wei Xu ()
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Yigang Jin: CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences
Yuhui Fang: Peking University
Ze Li: CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences
Xiang Hao: CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences
Feng He: CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences
Bo Guan: CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences
Dongwei Wang: CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology
Sha Wu: CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences
Yang Li: CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences
Caiming Liu: CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences
Xiaojuan Dai: CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences
Ye Zou: CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences
Yimeng Sun: CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences
Wei Xu: CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences

Nature Communications, 2022, vol. 13, issue 1, 1-9

Abstract: Abstract Conducting organic metal chalcogenides (OMCs) have attracted considerable interest for their superior electrical properties and fascinating functions. However, the electronic structural and functional regulation of OMCs are typically limited to the combination of monometallic nodes and graphene-like ligands. Here, we report a family of bimetallic OMCs ([CuAgx(C6S6)]n, x = 4 or 2) synthesized via selective metal metathesis and oxidation transformation. Both OMCs have alternatively stacked one-dimensional (1D) copper-dithiolene chains and 2D Ag-S networks, which can synergistically serve as charge transport pathways, rendering these bimetallic materials highly conductive. The incorporation of heterometallic nodes turned nonmagnetic [Ag5(C6S6)]n into paramagnetic metallic [CuAg4(C6S6)]n, which exhibited a coherence-incoherence crossover in magnetic susceptibility measurements and an unusually large Sommerfeld coefficient, reminiscent of the characteristics of Kondo lattice. This work opens up an avenue for tailoring the electronic structures of OMCs and provides a platform for studying the dichotomy between electronic localization and itinerancy.

Date: 2022
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DOI: 10.1038/s41467-022-34118-7

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