Ionic borohydride clusters for the next generation of boron thin-films: Nano-building blocks for electrochemical and refractory materials

Abstract

Abstract

Layered Double Hydroxides as Bifunctional Catalysts for the Aryl Borylation under Ligand-Free Conditions

“…Organoboron compounds have received great attention in last years due to significant impact in analytical [1], technological [2], and medicinal fields [3]. Particularly, low-weight compounds containing boronic acid/ester moieties have played an important role in the synthesis of new hybrid materials, sensors and complex organic molecules, through synthetic protocols such as Suzuki-Miyaura reactions.…”

Electronic Structure and Stability of [B12X12]2– (X = F–At): A Combined Photoelectron Spectroscopic and Theoretical Study

“…These highly symmetric molecular arrangements are able to stabilize two excess charges in a delocalized σ-electron system . The special binding motif in [B 12 H 12 ] 2– identified in the 1950s confronted advocators of the valence bond theory with severe challenges and has been the subject of continuous theoretical investigations until today. ,− The [B 12 H 12 ] 2– dianion and its derivatives are also important in a variety of fundamental and applied research fields, − with boron-based neutron capture therapy of cancer being the most prominent . The halogenated derivatives [B 12 X 12 ] 2– (X = F, Cl, Br, I) are of continuously growing interest as weakly coordinating anions with high resistance against electrophilic attack, having practical applications in synthesis and catalysis. , The importance of this class of compounds and associated derivatives in the general field of MCAs has been very recently outlined by a theoretical study of [B 12 (CN) 12 ] 2– , which was predicted to be the most stable dianion known to date, but experimental investigations cannot be performed because this compound has not been synthesized so far.…”

Thermodynamic Hydricity of Small Borane Clusters and Polyhedral closo-Boranes

“…with delocalized electrons and multicenter bonding. Boron hydrides, i.e., boranes (e.g., BH 4 − , [B 3 H 8 ] − , [B n H n ] 2− n = 6–12), are of great interest because of their use as ligands in inorganic chemistry [ 1 , 2 , 3 , 4 , 5 ], as building blocks in material chemistry [ 3 , 6 , 7 , 8 ], and as materials for the energetic purposes—components of batteries [ 9 , 10 ], rocket fuels [ 11 , 12 , 13 ] and systems of hydrogen storage [ 14 , 15 , 16 , 17 ]. Polyhedral boranes are widely used as sources of boron ( 10 B) in boron neutron capture cancer therapy [ 18 , 19 , 20 , 21 , 22 , 23 ], in the creation of luminescent materials [ 24 , 25 , 26 ], thermally stable polymers [ 5 ], liquid crystals and nonlinear optical materials [ 27 , 28 ], as well as precursors of nanostructured materials [ 29 , 30 ].…”

“…In most cases, except for [B7 H 7 ] 2− and [B 16 H 16 ] 2− , the equatorial BH groups have the lowest HDA MeCN values. The trend in the ability to hydride transfer (Scheme 8, for Li 2 [B n H n ] see Scheme S10) correlates with the calculated Gibbs free energy per unit (G • /n) for both Li 2 [B n H n ] and [B n H n ] 2− (n = 5-17) (Figures S5 and S6) and with previously reported energy per unit by PRDDO calculations [136].…”