The Crystal Chemistry of Inorganic Hydroborates

摘要: The crystal structures of inorganic hydroborates (salts and coordination compounds with anions containing hydrogen bonded to boron) except for the simplest anion, borohydride BH4−, are analyzed regarding their structural prototypes found in databases such as Pearson’s Crystal Data [Villars Cenzual (2015), Data. Structure Database Inorganic Compounds, Release 2019/2020, ASM International, Materials Park, Ohio, USA]. Only hydroborate only type anion reviewed, although including gathering more than one different (mixed anion). Carbaborane partly halogenated included. Hydroborates other or neutral molecules NH3 not discussed. polyhedra around cations, complex determined constitute basis systematics underlying chemistry various variants anionic packing. latter is from anion–anion help topology analysis using program TOPOS [Blatov (2006), IUCr CompComm. Newsl. 7, 4–38]. Pauling rules ionic crystals apply smaller cations observed number within 2–4. For bigger predictive power first rule very poor. All non-molecular can be derived by simple deformation close-packed lattices, i.e., cubic close packing (ccp) hexagonal (hcp), body-centered (bcc), filling tetrahedral octahedral sites. This review on a contribution that should serve roadmap materials engineers design new materials, synthetic chemists search promising prepared, scientists understanding properties novel materials.