Sixty-two years ago,the then four-year-old Qin Yansheng got lost near his home at Deshengqiao,Wuchang *** biological parents never saw him again after ***,with the help of relatives,police and volunteers,the now elder...
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Sixty-two years ago,the then four-year-old Qin Yansheng got lost near his home at Deshengqiao,Wuchang *** biological parents never saw him again after ***,with the help of relatives,police and volunteers,the now elderly man who was separated from his family for 62 years was finally reunited with his siblings.
A new cobalt selenite,Ca2Co(HSeO3)2(SeO3)2,was synthesized by a conventional hydrothermal method. Single-crystal X-ray diffraction analysis reveals that Ca2Co(HSeO3)2(SeO3)2 crystallizes in triclinic system,sp...
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A new cobalt selenite,Ca2Co(HSeO3)2(SeO3)2,was synthesized by a conventional hydrothermal method. Single-crystal X-ray diffraction analysis reveals that Ca2Co(HSeO3)2(SeO3)2 crystallizes in triclinic system,space group P1,with a = 5.330(5),b = 7.047(7),c = 8.457(9) ?,V = 285.0(5) ?3,Z = 1,Mr = 646.93,Dc = 3.769,μ = 15.235 mm-1,F(000) = 299.0,the final R = 0.0452 and wR = 0.1169 for observed 1265 reflections with I > 2σ(I). The title compound consists of isolated chains built from CoO6 octahedra and SeO3 pyramids. In this structure,the chains are separated by Ca2+ cations. Magnetic measurements confirm that the title compound exhibits long-range antiferromagnetic ordering at 3 K and field-induced magnetic transition at 2 T.
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