title: Ca3Na4LiBe4B10O24F: a new beryllium borate with a unique beryl borate ∞(2)[Be8B16O40F2] layer intrabridged by [B12O24] groups.
abstract: A novel beryllium borate, Ca3Na4LiBe4B10O24F, has been discovered. It possesses a unique ∞(2)[Be8B16O40F2] layer composed of two opposite parallel [Be4B4O12F]∞ layers bridged with [B12O24] polyborates. The linkage of [B12O24] to other structural units is first found in anhydrous borates. In the ∞(2)[Be8B16O40F2] layer, multiple tunnels are arranged along different directions resided by the alkali and alkaline-earth cations. The compound remains stable in an ambient atmosphere from room temperature to the melting point at 830 °C and melts incongruently.
authors.affiliation: Beijing Center for Crystal Research and Development, ‡Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences , Beijing 100190, China.
authors.forename: Siyang
authors.initials: S
authors.lastname: Luo
authors.forename: Wenjiao
authors.initials: W
authors.lastname: Yao
authors.forename: Pifu
authors.initials: P
authors.lastname: Gong
authors.forename: Jiyong
authors.initials: J
authors.lastname: Yao
authors.forename: Zheshuai
authors.initials: Z
authors.lastname: Lin
authors.forename: Chuangtian
authors.initials: C
authors.lastname: Chen