在BaO-B2O3-BaF2体系中合成出了一种新的硼酸盐化合物Ba7(BO3)3F5.用高温溶液法获得了该化合物的晶粒,并解析其单晶结构;Ba7(BO3)3F5晶体属六方晶系,空间群为P63mc,晶胞参数:a=1.11562(15) nm,c=0.72415(14) nm,Z=2,V=0.7805(2) nm3.红外光谱表明晶体结构中BO3基团的存在;UV-Vis-NIR漫反射光谱说明Ba7(BO3)3F5化合物在深紫外区190 nm左右才表现为全吸收.
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