K11RbB28O48: a new triple-layered borate with an unprecedented [B28O57] fundamental building block†
Abstract
A new mixed-alkali borate, K11RbB28O48, has been obtained using the high-temperature solution method. It features a new [B28O57] fundamental building block. Meanwhile, these units further polymerize to form unusual triple-layered anionic groups. Thermal analysis, optical property measurement, and theoretical calculations were performed.