【摘 要】
：
T The structure of LiSrY2(BO3)3 has been solved by single-crystal X-ray diffraction analysis at 298 and 113 K on different diffractometers.It crystallizes in tr
【机 构】
：
Department of Chemistry,Department of Physics
【基金项目】
：
the Major Research Project of Xi’an University of Arts and Science;the Special Fund of Education Committee of Shaanxi Province
论文部分内容阅读
T The structure of LiSrY2(BO3)3 has been solved by single-crystal X-ray diffraction analysis at 298 and 113 K on different diffractometers.It crystallizes in trigonal with space group P-3ml(No.164).The cell parameters at room temperature are as follows:α=10.3345(9),c=6.4049(11)(A),V=592.41(13)(A)3,Z=3,Mr=448.81,F(000)=618,μ=21.327 mm-1 and Dc=3.774 g/cm3.The crystal structure consists of gear-like[BY6O33]groups which are linked together by comer-sharing to form a two-dimensional layer parallel to the ab plane.These layers are connected one after another by sharing oxygen atoms with B(2)atoms along the c direction to construct a three-dimensional framework.Li and Sr atoms just occupy the cavities formed by oxygen atoms.In addition,the vibrational spectroscopy of LiSrY2(BO3)3 and photoluminescence properties of the Eu3+ doped LiSrY2(BO3)3 were also studied.
其他文献
在不除氧条件下，１０ｍＬ含喹啉／β－ＣＤ溶液中只需加入１５μＬ１，２－二溴丙烷（ＤＢＰ）作重原子微扰剂，就能产生强而稳定的室温磷光信号。最大λｅｘ／λｅｍ＝２７３／４９６ｎｍ。喹啉浓度在５．０×１０－７～５．０×１０－５ｍｏｌ／Ｌ，５．０×１０－５ｍｏｌ／Ｌ～５．０×１０－４ｍｏｌ／Ｌ，两段三个数量级范围与室温磷光信号有良好的
本文经十二烷基硫酸钠，十二烷基二甲基苄基溴化铵和壬基酚基聚氧乙烯醚复配而成的混合微乳液体系对鼠肺组织进行浸取前处理，用火焰原子吸收法测定了其中的钙含量。用混合微乳液
本文对电热原子吸收光谱法机理研究的常用方法，特别是多种物理测试手段进行介绍。
The global distributions of the air-sea CO2 transfer velocity and flux are retrieved from TOPEX/Poseidon and Jason altimeter data from October 1992 to December
T The title complex[Cu(L1(L2)(H2O)].H2O(1,HL1=N-(imino(pyridin-2-yl)methyl)picolinamidine),HL2=salicylic acid)has been obtained by volatilization method with L1
We report for the first time a cleavage phenomenon in the resonant peak of a piezoelectric quartz crystal(PQC)in liquid phase.In the presence of a strong longit
T One new coordination polymer with the chemical formula[CoCu2L2·K.2·1.5C2H5OH]n(H4L=2-hydroxy-3-[(E)-({3-[(2-hydroxybenzoyl)amino]propyl}imino)methyl]benzoic
Nanoparticles have properties that can be fine-tuned by their size as well as shape.Hence,there is significant current interest in preparing nano-materials of s
Two new oleanane-type saponins,crotalarioside A(1)and crotalariosida B(2),were isolated from the roots of Polygala crotalarioides.Their structures were elucidat
T The hydroxy yttrium hexaborate,Y[B2O3(OH)]3,has been synthesized under mild hydrothermal conditions at 458 K.The crystal structure was solved and refined from