title: Sr8MgB18O36: a new alkaline-earth borate with a novel zero-dimensional (B18O36)18- anion ring.
abstract: A new polyborate, Sr8MgB18O36, has been synthesized. Its crystal structure was determined from single-crystal X-ray diffraction data, and characterizations were made by differential scanning calorimetry, Fourier transform IR, UV-vis-near-IR diffuse-reflectance, and first-principles calculations. The structure of Sr8MgB18O36 contains a novel isolated anionic group-an 18-membered ring (B18O36)(18-), which is the first found in borates.
authors.affiliation: Beijing Center for Crystal R&D, Key Lab of Functional Crystals and Laser Technology of Chinese Academy of Sciences, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
authors.forename: Wenjiao
authors.initials: W
authors.lastname: Yao
authors.forename: Xingxing
authors.initials: X
authors.lastname: Jiang
authors.forename: Hongwei
authors.initials: H
authors.lastname: Huang
authors.forename: Tao
authors.initials: T
authors.lastname: Xu
authors.forename: Xiaoshan
authors.initials: X
authors.lastname: Wang
authors.forename: Zheshuai
authors.initials: Z
authors.lastname: Lin
authors.forename: Chuangtian
authors.initials: C
authors.lastname: Chen