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budong0915

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新型五硼酸盐的熔盐合成及结构表征
通过低温熔盐法合成了一种新型五硼酸盐RbB5O7(OH)2.H2O,单晶X射线衍射分析证明该化合物属单斜晶系,P2/n空间群,a=0.7640(2)nm,b=0.9019(3)nm,c=1.0833(3)nm,β=103.681(5)°,V=0.7252(4) nm3,Z=2。结构中,BO3、BO2(OH)2与BO4连接形成的[B5O7(OH)2]-单元相互连接形成无限的链状结构,链状结构再通过十配位的铷离子连接形成RbB5O7(OH)2.H2O的三维网状结构。同时通过X粉晶衍射、红外光谱、热重等对化合物进行了表征。
低温熔盐法;五硼酸盐;单晶结构;链状结构

[ Last edited by budong0915 on 2011-11-28 at 15:49 ]
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xiaohanhan2007

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【答案】应助回帖


sltmac(金币+1): 2011-11-28 17:14:52
budong0915(金币+10, 翻译EPI+1): 2011-12-01 12:50:59
引用回帖:
1楼: Originally posted by budong0915 at 2011-11-28 13:31:41:
新型五硼酸盐的熔盐合成及结构表征
通过低温熔盐法合成了一种新型五硼酸盐RbB5O7(OH)2.H2O,单晶X射线衍射分析证明该化合物属单斜晶系,P2/n空间群,a=0.7640(2)nm,b=0.9019(3)nm,c=1.0833(3)nm,β=103.681(5 ...

A novel Rb borate RbB5O7(OH)2.H2O has been synthesized by the low-temperature molten salt method, which has been analyzed and demonstrated to crystallize in the space group of P2/n in the monoclinic system with the following crystal parameters by the single crystal X-ray diffraction: a=0.7640(2)nm,b=0.9019(3)nm,c=1.0833(3)nm,β=103.681(5)°,V=0.7252(4) nm3,Z=2. Besides, the crystal structure shows that the [B5O7(OH)2]- units composed of BO3、BO2(OH) and BO4 interconnect and form infinite chains, which then forms a 3D net structure of RbB5O7(OH)2.H2O with ten-coordinated Rb cations. Meanwhile, the compound has also been characterized by XRD, IR and TGA.

low-temperature molten salt method; Rb borates; single crystal structures; chain structures
2楼2011-11-28 16:45:32
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