Peculiarity of formation of the NASICON-related phosphates in the space group R32: synthesis and crystal structures of Na4MIIAl(PO4)3 (MII-Mg, Mn)

被引：15

作者：

Zatovsky, I. V. ^{[1
]}

Strutynska, N. Yu. ^{[1
]}

Ogorodnyk, I. V. ^{[1
]}

Baumer, V. N. ^{[2
,3
]}

Slobodyanik, N. S. ^{[1
]}

Yatskin, M. M. ^{[1
]}

Odynets, I. V. ^{[1
]}

机构：

[1] Taras Shevchenko Natl Univ Kyiv, Dept Chem, 64-13 Volodymyrska Str, UA-01601 Kiev, Ukraine

[2] STC Inst Single Crystals NAS Ukraine, 60 Lenin Ave, UA-61001 Kharkov, Ukraine

[3] Kharkov Natl Univ, 4 Svobody Sq, UA-61001 Kharkov, Ukraine

来源：

STRUCTURAL CHEMISTRY | 2016年 / 27卷 / 01期

关键词：

NASICON; Self-flux; Crystal structure; Single-crystal X-ray diffraction; DTA/TG; EXPANSION CERAMICS; IONIC-CONDUCTIVITY; PHASE-TRANSITIONS; THERMAL-EXPANSION; CHEMISTRY; TRANSPORT; NA3SC2(PO4)3; RBTI2(PO4)3; IMPEDANCE; SODIUM;

D O I：

10.1007/s11224-015-0713-6

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Crystallization of high-temperature self-flux of the pseudo-quaternary system Na2O-(MO)-O-II-Al2O3-P2O5 (M-II-Mg, Mn) was studied, and two new complex orthophosphates with general composition Na4MgAl(PO4)(3) (NaMgAlP) and Na4MnAl(PO4)(3) (NaMnAlP) were prepared and characterized. Their structures were determined using the single-crystal (NaMnAlP) and powder (NaMgAl) X-ray diffraction data. Both compounds belong to NASICON family (rhombohedral system, space group R3(2)) with cell parameters a = 8.8570(4), c = 21.2865(19) for NaMnAlP and a = 8.74631(13), c = 21.1534(3) for NaMgAlP. The basic building blocks of the rigid framework of both compounds are two different units [Al-2(PO4)(3)] and . The sodium atoms are distributed over three crystallographic sites in cavities of the framework. The NASICON-type framework topology in space group R3(2) is discussed.

引用

页码：323 / 330

页数：8

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