Related Experiment Video
Updated: Mar 6, 2026
From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
Published on: March 24, 2018
The structural diversity of halogen-centered secondary building units: two new mixed-metal borate halides with
Miriding Mutailipu1, Min Zhang, Yanna Chen
1Key Laboratory of Functional Materials and Devices for Special Environments, Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences; Xinjiang Key Laboratory of Electronic Information Materials and Devices, 40-1 South Beijing Road, Urumqi 830011, China. zhangmin@ms.xjb.ac.cn slpan@ms.xjb.ac.cn.
Abstract:
Two new mixed-metal borate halides, namely, NaMg2Ba7B14O28F5 (I) and NaBa4B10O18BrF2 (II), were synthesized using the high-temperature flux method. Both structures were characterized by single-crystal X-ray diffraction, and their structures are shown to feature complicated three dimensional (3D) networks with different types of halogen-centered secondary building units (SBUs). Specifically, compound I contains three spatial fluorine-centered SBUs F(1)Ba4Mg2, F(2)Ba(Na)Ba3Mg, and F(3)Ba(Na)Ba2Mg, while compound II exhibits spatial FBa3Na and planar BrBa4 fluorine- or bromine-centered SBUs. Furthermore, four categories of halogen-centered SBUs were investigated among all the 173 available anhydrous halogen-containing borates to elaborate the role of halogen atoms to enrich the structural diversity of borates. What's more, the crystal structures, thermal stabilities, and UV-Vis-NIR diffuse reflectance spectra of synthesised compounds I and II have also been determined.
More Related Videos
08:12Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films
Published on: September 8, 2017
10:42Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
Published on: December 29, 2016
Related Concept Videos
03:24Hybridization of Atomic Orbitals I
02:45Alkyl Halides
Alkyl halides are halogen-substituted alkanes wherein one or more hydrogen atoms of an alkane is replaced by a halogen atom such as fluorine, chlorine, bromine, or iodine. The carbon atom in an alkyl halide is bonded to the halogen atom, which is sp3-hybridized and exhibits a tetrahedral shape.
Unlike alkyl halides, compounds in which a halogen atom is bonded to an sp2 -hybridized carbon atom of a carbon-carbon double bond (C=C) are called vinyl halides. Whereas aryl...
02:52VSEPR Theory and the Basic Shapes
02:42Ionic Crystal Structures
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
03:01Halogens
04:01VSEPR Theory and the Effect of Lone Pairs