Precise control of structures and magnetic properties of a molecular material constitutes an important challenge to realize the tailor-made magnetic function. Herein, we reported that the ligand-directed coordination self-assembly of...

Supercapacitors are widely used in power reserves and portable power devices because of their rapid charge and discharge rates and excellent cycle performance. Carbon materials have the characteristics of large specific surface areas, excellent electrical conductivity, good chemical stability, and low price, so they are very attractive as electrode materials for supercapacitors. In recent decades, the electrochemical properties of supercapacitors based on porous carbon have attracted much interest. Through the design of supercapacitors of reasonable appearance, pore shape, and surface characteristics, their electrochemical performance has been significantly improved. Herein, a simple and easy process is developed to synthesize a new kind of porous carbon materials with N,O-doping. The constructed supercapacitor with the as-prepared carbon material exhibits excellent capacitance performance and rapid charge and discharge rates (<1 s, 20 A/g, two-electrode cell), ultralong cycle life (>89,000 cycles, 10 A/g), large specific capacitance (276.5 F/g, 0.5 A/g), and excellent energy density (38.4 W/h/kg). Its superior properties make it one of the best candidate electrode materials for supercapacitors derived from ligands. Its excellent supercapacitor performance is probably related to its high ion-accessible specific surface area, hierarchical regular pore structure, and well N,O-doping on the surface of the carbon composite. This study provides a feasible strategy for the development of high-performance supercapacitors suitable for commercial applications.

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High‐nuclearity metal clusters have received considerable attention not only because of their diverse architectures and topologies, but also because of their potential applications as functional materials in many fields. To explore new types of clusters and their potential applications, a new nickel(II) cluster‐based mixed‐cation coordination polymer, namely poly[hexakis[μ4‐(2‐carboxylatophenyl)sulfanido]di‐μ3‐chlorido‐tri‐μ2‐hydroxido‐octanickel(II)sodium(I)], [Ni8NaCl2(OH)3(C7H4O2S)6]n, 1, was synthesized using nickel chloride hexahydrate and mercaptobenzoic acid (H2mba) as starting reactants under hydrothermal conditions. The material was characterized by single‐crystal X‐ray diffraction (SCXRD), Fourier transform IR spectroscopy, thermogravimetric analysis, powder X‐ray diffraction and X‐ray photoelectron spectroscopy analysis. SCXRD shows that 1 consists of a hexanuclear nickel(II) [Ni6] cluster, dinuclear NiII nodes and a mononuclear NaI node, resulting in the formation of a complex covalent three‐dimensional network. In addition, a tightly packed NiO/C&S nanocomposite is fabricated by sintering the coordination precursor at 400 °C. The uniform nanocomposite consists of NiO nanoparticles, incompletely carbonized carbon and incompletely vulcanized sulfur. When used as a supercapacitor electrode, the synthesized composite shows an extra‐long cycling stability (>5000 cycles) during the charge/discharge process.

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