Three diphosphates, α-Li2Na2P2O7, Li8Pb3Ba(P2O7)4 and Li7Rb(P2O7)2: influences of co-substitution on the crystal structure

被引：6

作者：

Wen, Ming ^{[1
]}

Hu, Cong ^{[2
]}

Wu, Hongping ^{[2
]}

Yang, Zhihua ^{[2
]}

Wu, Xiaohong ^{[1
]}

Pan, Shilie ^{[1
,2
]}

机构：

[1] Harbin Inst Technol, Sch Chem & Chem Engn, Harbin 150001, Heilongjiang, Peoples R China

[2] Chinese Acad Sci, CAS Key Lab Funct Mat & Devices Special Environm, Xinjiang Tech Inst Phys & Chem, Xinjiang Key Lab Elect Informat Mat & Devices, 40-1 South Beijing Rd, Urumqi 830011, Peoples R China

来源：

DALTON TRANSACTIONS | 2020年 / 49卷 / 20期

基金：

对外科技合作项目（国际科技项目）; 中国国家自然科学基金;

关键词：

NONLINEAR-OPTICAL MATERIAL; 2ND-HARMONIC GENERATION; LUMINESCENT PROPERTIES; PHOSPHATES; WATER; NA;

D O I：

10.1039/d0dt01070g

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Three diphosphates, alpha-Li2Na2P2O7, Li8Pb3Ba(P2O7)(4) and Li7Rb(P2O7)(2), were synthesized via a high-temperature solution method. alpha-Li2Na2P2O7 crystallized into a non-centrosymmetric space group Ama2, while Li8Pb3Ba(P2O7)(4) and Li7Rb(P2O7)(2) crystallized into the centrosymmetric space groups C2/c and P1respectively. alpha-Li2Na2P2O7, Li8Pb3Ba(P2O7)(4) and Li7Rb(P2O7)(2) could be obtained by co-substitution from each other. Also, we found that the high valence state and small atomic radius of the substituted cations resulted in a larger cation-cation distance, which led to a lower dimension of the structure. Li2Na2P2O7 possessed two phases, namely, alpha- and beta-Li2Na2P2O7, and their second harmonic generation (SHG) responses were compared. We also reported the syntheses, IR spectra, UV-vis-NIR diffuse reflectance spectroscopy data, thermal properties and first principles calculations of the title compounds.

引用

页码：6744 / 6750

页数：7

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