Structure of Non-stoichiometric Sr_6Gd_(0.61)Sc_(1.39)(BO_3)_6 Crystal  

作　　者：HUZu-Shu LINZhou-Bin CHENJiu-Tong WANGGuo-Fon 

机构地区：[1]StateKeyLaboratoryofStructuralChemistry,FujianInstituteofResearchontheStructureofMatter,TheChineseAcademyofSciences,Fuzhou,Fujian350002,China [2]GraduateSchooloftheChineseAcademyofSciences,Beijing100039,China

出　　处：《Chinese Journal of Structural Chemistry》2004年第5期537-539,共3页结构化学（英文）

基　　金：Supported by the National Natural Science Foundation of China (50272066) and the Key Project of Science and Technology of Fujian Province (2001H107)

摘　　要：The crystal of the title compound Sr6Gd0.61Sc1.39(BO3)6 (Mr = 1037.00) was grown by Czochralski method. It crystallizes in trigonal, space group 3Rwith a = 12.415(2), c = 9.274(2) ? Z = 3, V = 1238.0(4) 3, Dc = 4.173 g/cm3, l(MoKa) = 0.71073 ? m = 22.278 mm-1, F(000) = 1411, S = 1.213, the final R = 0.0577 and wR = 0.1414 for 401 observed reflections with I>2s(I). In the structure Gd(1)O6 (Gd(1) = Gd0.46 + Sc0.54) and Gd(2)O6 (Gd(2)= Gd0.15 + Sc0.85) are alternately stacked between the planar triangular BO3 groups to form chains extending along the trigonal axis. These chains are connected through the 9-coordinate Sr atoms.

关 键 词：crystal structure Sr6Gd0.61Sc1.39(BO3)6 crystal non-stoichiometric 

分 类 号：O614.232[理学—无机化学] O78[理学—化学]