Synthesis and Crystal Structure Analysis of Multinary Germanates and Stanates Containing Rare-earth Elements

含稀土元素多元锗酸盐和锡酸盐的合成及晶体结构分析

• 批准号: 17360316
• 负责人: YAMANE Hisanori
• 金额: $ 10.12万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17360316/
• 关键词: Oxide Ceramics; Novel compounds; Crystal Structure Analysis; Powder X-ray Diffraction; Single Crystal X-ray Diffraction; Solid State Reaction; Luminescence Properties; Stanate Compounds; 多元系酸化物; 単結晶; セラミックス; 単結晶構造解析; ゲルマニウム酸塩; 金属酸化物

New compounds CaY_2Ge_3O_<10>, CaY_2Ge_4O_<12>, Ca_<0.8>Y_<2.4>Sn_<0.8>O_6, Ca_<1.5>Eu_3Sn_<0.5>O_7 were synthesized in the systems of rare-earth-Ca-Ge/Sn-O by solid state reaction at 1000 - 1500℃ in air. Single crystals of these compounds were obtained by annealing or by slow cooling of partially melted samples. The crystal structures of these new compounds were analyzed by the single crystal X-ray diffraction method. CaY_2Ge_4O_<12> is isotypic with SrNa_2P_4O_<12>, CaY_2Ge_3O_<10> crystallizes in a novel structure where Ca and Y atoms are situated disorderly in three 7-fold coordination sites between isolate germinate groups of triple GeO4 tetrahedra, Ca_<0.8>Y_<2.4>Sn_<0.8>O_6 is isotypic with Mg_3TeO_6, and Ca_<1.5>Eu_3Sn_<0.5>O_7 crystallizes in a novel structure which is related to the structure of B-form Eu_2O_3.Ca_<0.8>(Y_<1-x>Eu_x)_<2.4>Sn_<0.8>O_6 (0.0〓x<0.3) Ca_<0.8>Y_<2.4>Sn_<0.8-y>Ti_yO_6 (0.0〓y〓0.24) and Ca_<0.8>(Y_<0.9>)Eu_<0.1>)_<2.4>Sn_<0.8-y>Ti_yO_6(0.0〓y〓0.16) were prepared and investigated their luminescence properties. Under ultraviolet light irradiation of 250-264 nm, Ca_<0.8>(Y_<0.9>)Eu_<0.1>)_<2.4>Sn_<0.72>Ti_<0.08>O_6 and Ca_<0.8>(Y_<0.9>Eu_<0.1>)_<2.4>Sn_<0.8>O_6 showed bright red emission of 614 nm due to the ^5Do^<-7>F_2 transition of Eu^<3+>. A broad emission peak of Ti^<4+> centered at 450 nm was observed for Ca_<0.8>Y_<2.4>Sn_<0.72>Ti_<0.08>O_6, suggesting the possibility of energy transfer from Ti^<4+> to Eu^<3+>.

新化合物CAY_2GE_3O_ <10>，CAY_2GE_4O_ <12>，Ca__ <0.8> Y__ <2.4> Sn_ <0.8> o_6，Ca__ <1.5> EU_3SN_ <0.5> o_7在稀有的固体状态的稀有系统中合成在1000 000 00000的稀有状态下，在稀有的ca-ge/sn-o中合成。这些化合物的单晶是通过退火或通过部分融化样品缓慢冷却来获得的。通过单晶X射线衍射法分析了这些新化合物的晶体结构。 CAY_2GE_4O_ <12>是同种型，srna_2p_4o_ <12>，cay_2ge_3o_ <10>在一个新颖的结构中结晶，其中Ca和Y原子在三个7倍的配位地点中无序地位于孤立的孤立孤立群体之间，triple geo4 triple geo4 tetrahedra，ca__________________________________________E______ENE_有。 mg_3teo_6和ca__ <1.5> eu_3sn_ <0.5> o_7在一种新颖的结构中结晶，该结构与b-form eu_2o_2o_33.ca________________ <0.8>（y___ <1-x> eu__x）_ <2.4> CA__ <0.8> y_ <2.4> sn_ <0.8-y> ti_yo_6（0.0〓Y〓0.24）和ca__ <0.8>（y__ <0.9>）eu_ <0.1>）_ <2.4> sn_ <0.8-Y> ti_yo_6（ti_yo_6（0.0〓yy〓0.16））已准备好并调查了他们的声音properties。在250-264 nm的紫外线下，CA__ <0.8>（y__ <0.9>）EU_ <0.1>）_ <2.4> sn_ <0.72> ti_ <0.72> ti_ <0.08> o_6和ca__6 and ca__ <0.8>（y____ <0.9> eu__ <0.1> _1> _ <2.1） ^5do^<-7> f_2 eu^<3+>的过渡。在CA__ <0.8> Y__ <2.4> Sn_ <0.72> Ti_ <0.08> O_6的CA__ <0.8> y__ <2.4> ti^<4+>的宽发射峰观察到以450 nm为中心。

项目成果

Ca_<1.5>Eu_3Sn_<0.5>O_7 : a calcium europium tin oxide with a novel structure

Ca_<1.5>Eu_3Sn_<0.5>O_7：一种具有新颖结构的钙铕锡氧化物

• 发表时间: 2007
• 期刊: Acta Crystallographica, Section C 63・1
• 作者: Y.Kaminaga;et al.
• 通讯作者: et al.

Preparation and luminescence properties of Ca_<2-x>Sn_<1-x>(Y, Eu)_<x>O_4

Ca_<2-x>Sn_<1-x>(Y,Eu)_<x>O_4的制备及发光性能

• 发表时间: 2006
• 作者: Yusuke. Kaminaga;ed. al.
• 通讯作者: ed. al.

Crytal structures and photoluminescence properties of compounds in CaO-(Y, Eu)_<2>O_<3>-SnO_2 system

CaO-(Y,Eu)_<2>O_<3>-SnO_2体系化合物的晶体结构及光致发光性能

• 发表时间: 2006
• 作者: Yusuke. Kaminaga;ed. al.
• 通讯作者: ed. al.

Preparation and luminescence properties of Eu and Ti co-doped oxides in Ca-Y-Sn-O system

Ca-Y-Sn-O体系Eu、Ti共掺杂氧化物的制备及发光性能

• 发表时间: 2008
• 作者: Yusuke. Kaminaga;ed. al.
• 通讯作者: ed. al.

Ca_<2-x>Sn_<1-x>(Y,Eu)_xO_4の合成と発光特性

Ca_<2-x>Sn_<1-x>(Y,Eu)_xO_4的合成及发光性能

• 发表时间: 2006
• 作者: 神長 祐介;他
• 通讯作者: 他