A novel ternary lithium strontium borate Li2Sr4B 12O23 crystal with size up to 20 mm×10 mm×4 mm has been grown via the top-seeded solution growth method below 730 °C. Single-crystal XRD analyses showed that Li2Sr4B 12O23 crystallizes in the monoclinic space group P2 1/c with a=6.4664(4) A˚, b=8.4878(4) A˚, c=15.3337(8) A˚, β=102.02(3)°, Z=2. The crystal structure is composed of [B10O18]6- network and isolated [B 2O5]4- unit. The IR spectrum further confirmed the presence of both BO3 and BO4 groups. TG-DSC and Transmission spectrum were reported. Band structures and density of states were calculated.
Chinese Acad Sci, Xinjiang Key Lab Elect Informat Mat & Devices, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China;Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Zhang Min,Pan Shilie,Han Jian,et al. Li2Sr4B12O23: A new alkali and alkaline-earth metal mixed borate with [B10O18](6-) network and isolated [B2O5](4-) unit[J]. Journal of Solid State Chemistry,2012,190(6):92-97.