3 years ago

Structure Elucidation and Characterization of the High-Pressure Nickel Borate Hydroxide NiB3O5(OH)

Structure Elucidation and Characterization of the High-Pressure Nickel Borate Hydroxide NiB3O5(OH)
Martin K. Schmitt, Hubert Huppertz, Rainer Pöttgen, Oliver Janka
The high-pressure nickel borate hydroxide NiB3O5(OH) was synthesized in a high-temperature/high-pressure reaction at 4 GPa and 1023 K using a Walker-type multianvil apparatus. Single-crystal X-ray diffraction was used to determine the structure of NiB3O5(OH). It crystallizes in the monoclinic space group P21/c (no. 14) with a = 4.3222(1), b = 9.5888(2), c = 8.5067(3) Å, and β = 90.50(1)°. Furthermore, the compound was characterized by powder X-ray diffraction, vibrational spectroscopy, and magnetic measurements. The effective magnetic moment is μeff = 3.30(1) μB and the Weiss constant θP = –28.3(1) K indicates antiferromagnetic interactions in the paramagnetic regime.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/zaac.201700130

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