Latshaw Allison M, Hughey Kendall D, Smith Mark D, Yeon Jeongho, Zur Loye Hans-Conrad
Department of Chemistry and Biochemistry, University of South Carolina , Columbia, South Carolina 29208, United States.
Inorg Chem. 2015 Feb 2;54(3):876-84. doi: 10.1021/ic502185b. Epub 2014 Nov 5.
Single crystals of NaEu(9)(SiO(4))(6)O(2), Na(1.5)Eu(8.5)(SiO(4))(6)OF, Na(1.64)Gd(8.36)(SiO(4))(6)O(0.72)F(1.28), Gd(9.34)(SiO(4))(6)O(2), Ca(2.6)Eu(7.4)(SiO(4))(6)O(1.4)F(0.6), Ca(4.02)Sm(5.98)(SiO(4))(6)F(2), and K(1.32)Pr(8.68)(SiO(4))(6)O(1.36)F(0.64) and powders of NaEu(9)(SiO(4))(6)O(2), Na(1.5)Eu(8.5)(SiO(4))(6)OF, Eu(9.34)(SiO(4))(6)O(2), and Gd(9.34)(SiO(4))(6)O(2) were synthesized via flux growth in selected alkali-fluoride melts. All of the compounds adopt the apatite structure with space group P6(3)/m. Luminescence and magnetic data were collected on NaEu(9)(SiO(4))(6)O(2), Na(1.5)Eu(8.5)(SiO(4))(6)OF, Eu(9.34)(SiO(4))(6)O(2), and Gd(9.34)(SiO(4))(6)O(2). Luminescent data indicate that changing the cations and anions that surround the lanthanide site does not change the luminescent properties, making apatites versatile structures for optical materials.
通过在选定的碱金属氟化物熔体中进行助熔剂生长法合成了NaEu(9)(SiO(4))(6)O(2)、Na(1.5)Eu(8.5)(SiO(4))(6)OF、Na(1.64)Gd(8.36)(SiO(4))(6)O(0.72)F(1.28)、Gd(9.34)(SiO(4))(6)O(2)、Ca(2.6)Eu(7.4)(SiO(4))(6)O(1.4)F(0.6)、Ca(4.02)Sm(5.98)(SiO(4))(6)F(2)和K(1.32)Pr(8.68)(SiO(4))(6)O(1.36)F(0.64)的单晶以及NaEu(9)(SiO(4))(6)O(2)、Na(1.5)Eu(8.5)(SiO(4))(6)OF、Eu(9.34)(SiO(4))(6)O(2)和Gd(9.34)(SiO(4))(6)O(2)的粉末。所有化合物均采用空间群为P6(3)/m的磷灰石结构。对NaEu(9)(SiO(4))(6)O(2)、Na(1.5)Eu(8.5)(SiO(4))(6)OF、Eu(9.34)(SiO(4))(6)O(2)和Gd(9.34)(SiO(4))(6)O(2)收集了发光和磁性数据。发光数据表明，改变围绕镧系元素位点的阳离子和阴离子不会改变发光特性，这使得磷灰石成为用于光学材料的通用结构。
