Synthesis and crystal structure of a new lithium cyclohexaphosphate hydrate: Li_6P_6O_(18) centre dot 10H_2O

Tahar Ben Chaabane; Leila Smiri-Dogguy

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Synthesis and crystal structure of a new lithium cyclohexaphosphate hydrate: Li_6P_6O_(18) centre dot 10H_2O

机译：新型环六磷酸锂水合物：Li_6P_6O_（18）中心点10H_2O的合成和晶体结构

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The synthesis and crystal structure of a novel hydrate of lithium cyclohexaphosphate are reported. Li_6P_6O_(18) centre dot 10H_2O crystallizes in the space group C2/c with a = 15.113(5), b = 12.006(2), c = 15.892(2) A, #beta# = 122.85(2) deg, and Z = 4. The structure consists of P_6O_(18) ring layers stacked along the c direction in between which are located the lithiumions and water molecules. Two LiO_4 tetrahedra share common edges with LiO_5 pseudosquare pyramids to form two independant Li_3O_9 units. About 50% of the water molecules have fractional occupancy rates and form fragments of molecules. A linear relationship is established between the relative cell volume V/Z and the hydration degree, n, for all the known hydrates: Li_6P_6O_(18) centre dot nH_2O.

机译：报道了新型环六磷酸锂水合物的合成和晶体结构。 Li_6P_6O_（18）中心点10H_2O在空间组C2 / c中以a = 15.113（5），b = 12.006（2），c = 15.892（2）A，＃beta＃= 122.85（2）度和Z结晶=4。该结构由沿c方向堆叠的P_6O_（18）环层组成，锂离子和水分子位于它们之间。两个LiO_4四面体与LiO_5伪正方形金字塔共享公共边，以形成两个独立的Li_3O_9单元。大约50％的水分子具有部分占有率并形成分子碎片。对于所有已知的水合物：Li_6P_6O_（18）中心点nH_2O，在相对孔体积V / Z与水合度n之间建立线性关系。

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《Journal of chemical crystallography》 |1999年第3期|共5页
作者
Tahar Ben Chaabane; Leila Smiri-Dogguy;
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正文语种 eng
中图分类晶体学;
关键词
crystal structure; cyclohexaphosphate; hydrate;

机译：晶体结构环六磷酸盐水合物;

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1. Synthesis and crystal structure of a new lithium cyclohexaphosphate hydrate: Li_6P_6O_(18) centre dot 10H_2O [J] . Tahar Ben Chaabane, Leila Smiri-Dogguy Journal of chemical crystallography . 1999,第3期

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Synthesis and crystal structure of a new lithium cyclohexaphosphate hydrate: Li_6P_6O_(18) centre dot 10H_2O

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