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首页> 外文期刊>Crystal growth & design >New fluoride borate solid-solution series Ba _(4-x)Sr _(3+x)(BO _3) _(4-y)F _(2+3y)
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New fluoride borate solid-solution series Ba _(4-x)Sr _(3+x)(BO _3) _(4-y)F _(2+3y)

机译:新型氟化硼酸盐固溶体系列Ba _(4-x)Sr _(3 + x)(BO _3)_(4-y)F _(2 + 3y)

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摘要

A lot of attention has been paid recently to the non-centrosymmetric fluoride borates with chemical formula BaMBO _3F (M = Ca, Mg, Zn). A new BaSrBO _3F phase has been synthesized by the solid-state reaction, and single crystals have been grown in the BaSrBO _3F-NaF system. According to the X-ray single-crystal structure analysis, the compound crystallizes in the space group P6 3mc. The distinguished feature of the determined structure is the simultaneous cationic (Ba ~(2+) ? Sr ~(2+)) and anionic (3F) ~3- ? (BO _3) ~(3-) isomorphisms, implying the existence of the solid-solution series Ba _(4-x)Sr _(3+x)(BO _3) _(4-y)F _(2+3y). The Ba _4Sr _3(BO _3) _4F _2 and Ba _3Sr _4(BO _3) _4F _2 end-members have been synthesized by solid-state reaction. The existence of Ba _4Sr _3(BO _3) _3F _5 and Ba _3Sr _4(BO _3) _3F _5 end-members has not been confirmed.
机译:最近,化学式为BaMBO _3F(M = Ca,Mg,Zn)的非中心对称氟化硼酸盐受到了广泛关注。通过固相反应合成了新的BaSrBO _3F相,并在BaSrBO _3F-NaF系统中生长了单晶。根据X射线单晶结构分析,该化合物在空间群P6 3mc中结晶。所确定的结构的显着特征是同时存在阳离子(Ba〜(2+)→Sr〜(2+))和阴离子(3F)〜3-? (BO _3)〜(3-)同构,表明存在固溶级数Ba _(4-x)Sr _(3 + x)(BO _3)_(4-y)F _(2 + 3y )。通过固态反应合成了Ba _4Sr _3(BO _3)_4F _2和Ba _3Sr _4(BO _3)_4F _2端基。尚未确认Ba _4Sr _3(BO _3)_3F _5和Ba _3Sr _4(BO _3)_3F _5末端成员的存在。

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