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We successfully obtained pure α-CoB 4 O 7 powder sample by a two-step synthesis method. First, a new cobalt polyborate with unknown crystal structure was synthesized by boric acid flux method in a sealed system. Subsequently, α-CoB 4 O 7 powder was obtained by the thermal decomposition of this new phase at 800 °C. The purity was carefully checked by Le Bail fitting...
Three compounds, [(CH 3 ) 2 NH 2 ][M 3 (BTC)(HCOO) 4 (H 2 O)]·H 2 O (M=Mn (1), Co (2), Ni (3), H 3 BTC=1,3,5-benzenetricarboxylic acid), were synthesized under hydrothermal conditions and were characterized by single crystal and powder X-ray diffraction, IR spectra, elemental analysis, coupled TG-MS and magnetic measurements. Compounds...
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