A New Family of 3d–4f Heterometallic Tetrazole-based Coordination Frameworks: <i>In Situ</i> Tetrazole Ligand Synthesis, Structure, Luminescence, and Magnetic Properties

A series of novel three-dimensional (3D) Ln­(III)–Cu­(I) heterometallic tetrazole-based coordination frameworks, namely, [LnCu­(3-tzba)₂(H₂O)₄] [Ln = Eu (<b>1</b>), Gd (<b>2</b>), Tb (<b>3</b>), Dy (<b>4</b>); 3-tzba = 3-(1<i>H</i>-tetrazol-5-yl)­benzoate], were successfully synthesized through <i>in situ</i> [2 + 3] cycloaddition reaction under hydrothermal conditions. Compounds <b>1</b>–<b>4</b> are isostructural 3D coordination frameworks with 1D anionic chains [Ln­(3-tzba)₂(H₂O)₄]⁻ linking the adjacent Cu­(I) ions possessing a uninodal 10-connected topology with the short (Schläfli) vertex symbol of (3¹².4²⁴.5⁹). To the best of our knowledge, they are the first lanthanide–transition heterometal–organic coordination frameworks obtained through <i>in situ</i> tetrazole synthesis. In addition, the luminescence properties of <b>1</b> and <b>3</b> and the magnetic properties of <b>2</b> and <b>4</b> were also investigated

A New Family of 3d–4f Heterometallic Tetrazole-based Coordination Frameworks: <i>In Situ</i> Tetrazole Ligand Synthesis, Structure, Luminescence, and Magnetic Properties

A series of novel three-dimensional (3D) Ln­(III)–Cu­(I) heterometallic tetrazole-based coordination frameworks, namely, [LnCu­(3-tzba)₂(H₂O)₄] [Ln = Eu (<b>1</b>), Gd (<b>2</b>), Tb (<b>3</b>), Dy (<b>4</b>); 3-tzba = 3-(1<i>H</i>-tetrazol-5-yl)­benzoate], were successfully synthesized through <i>in situ</i> [2 + 3] cycloaddition reaction under hydrothermal conditions. Compounds <b>1</b>–<b>4</b> are isostructural 3D coordination frameworks with 1D anionic chains [Ln­(3-tzba)₂(H₂O)₄]⁻ linking the adjacent Cu­(I) ions possessing a uninodal 10-connected topology with the short (Schläfli) vertex symbol of (3¹².4²⁴.5⁹). To the best of our knowledge, they are the first lanthanide–transition heterometal–organic coordination frameworks obtained through <i>in situ</i> tetrazole synthesis. In addition, the luminescence properties of <b>1</b> and <b>3</b> and the magnetic properties of <b>2</b> and <b>4</b> were also investigated

Ni-P nanoglass prepared by multi-phase pulsed electrodeposition

<p>Ni-P nanoglass consisting of nanometer-sized amorphous grains separated by amorphous interfaces was prepared by a specially designed multi-phase pulsed electrodeposition technique. The microstructure of the deposited Ni-P nanoglass was confirmed by X-ray diffraction, high-resolution transmission electron microscopy, small-angle X-ray scattering, and X-ray photoelectron spectroscopy. The formation of the Ni-P nanoglass, which is characterized by inhomogeneities on the nanometer length scale, is achieved via proper control of the rate of cluster formation and cluster growth by a multi-phase pulsed electrodeposition process.</p

Enhanced inter-diffusion of immiscible elements Fe/Cu at the interface of FeZr/CuZr amorphous multilayers

<p>Fe₇₅Zr₂₅/Cu₆₄Zr₃₆ amorphous multilayers were prepared by magnetron sputtering. Atom probe tomography was employed to analyze the atomic inter-diffusion at the interface of the multilayers before and after annealing (573 K, 60 min). An unexpected enhanced inter-diffusion of the immiscible elements Fe and Cu was detected at the interface of the multilayers. As the inter-diffusion in amorphous multilayers is much faster than that in the crystalline counterparts, this process may open a way to manipulate or create amorphous multilayers with new properties. This idea agrees with the observation of the variation of magnetic properties of Fe₇₅Zr₂₅/Cu₆₄Zr₃₆ amorphous multilayers.</p> <p><b>IMPACT STATEMENT</b> This paper reveals the enhanced atomic inter-diffusion at the interface of amorphous materials, and may open a way to manipulate or create amorphous multilayers with new properties.</p