Bi2Te3-based materials can be assembled into promising thermoelectric generators (TEGs) used for room temperature, yet regulating them for wide applications, like Internet of Things (IoTs), would be limited by small...

We report that surrounding coordination of neutral six-membered arene rings affords molecularly well-defined organotransition metal nanoclusters. With the use of [2.2]paracyclophane as the face-capping arene ligand, we have isolated two polyarene palladium nanoclusters, one consisting of a hexakis-arene ligand shell and a hexagonal close-packed Pd13 anticuboctahedron trichloride core, and the other consisting of an octakis-arene ligand shell and a non-close-packed Pd17 square gyrobicupola dichloride core, both with Pd–Pd direct bonding. The μ4-facial coordination mode of arene was discovered through the structural characterization of the Pd13 cluster. Their Pd13 and Pd17 cores, which are distinct from the previously identified face-centered-cubic Pd13 core surrounded by seven-membered cycloheptatrienyl, are explained by stereochemical and theoretical analyses.

Recently determined Fourier coefficient data for cold-worked β-AlNi diffraction peaks were analyzed for stacking-fault contributions using a method of normalization for the coefficients suggested by Rothman and Cohen, and the results were compared to those obtained with conventional normalization. It is shown that the conclusions concerning particle size anisotropy and importance of (110) faulting in β-AlNi remain unchanged irrespective of the normalization procedure. In addition, a modified Warren-Averbach-type graphical procedure is suggested for distinguishing anisotropic fault broadening from similar strain effects, which helps eliminate anisotropic strain scatter inherent to the conventional Warren-Averbach plot and allows a direct comparison between the fault predicted and the experimental coefficients for all reflections.

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