|
| << vorige | volgende >> |
Tijdschrift beschrijving
Alle jaargangen van het bijbehorende tijdschrift
Alle afleveringen van het bijbehorende jaargang
Alle artikelen van de bijbehorende aflevering
Details van artikel 6 van 8 gevonden artikelen
| Titel: |
Synthesis, characterization and mechanism of formation of 6-substituted nido-B10H13 decaboranes by the opening reaction of closo-decahydrodecaborate [B10H10]2− cage |
| Auteur: |
Naoufal, Daoud Laila, Zahra Yazbeck, Ogaritte Hamad, Hussein Ibrahim, Ghassan Aoun, Riman Safa, Ali EL Jamal, Mohieddine Kanj, Ali |
| Verschenen in: |
Main group chemistry |
| Paginering: | Jaargang 12 (2013) nr. 1 pagina's 39-48 |
| Jaar: |
2013-03-22 |
| Inhoud: |
The synthesis of new 6-LB10H13 (L = ligand) derivatives of decaborane B10H14 with different ligands was achieved by the opening cage reaction of closo-decahydrodecaborate (NH4)2B10H10 in the presence of a strong acid (HNO3 or H2SO4) in organic solvents (hexane or benzene derivatives). This reaction was performed by varying different factors: the acid strength, the solvent polarity, the equivalent amounts of (NH4)2B10H10 with respect to the acid used (1/4 or 1/6) and the reaction time (30 minutes to 24 hours). Nitric acid forced hexane solvent to play the role of ligand whereas sulfuric acid did not. The reaction of (NH4)2B10H10 with HNO3 in hexane produced 6-(C6H13)B10H13 and [B9H13NO3]−. The reaction of (NH4)2B10H10 with H2SO4 in aromatic solvent L (benzene, toluene, o-xylene and m-xylene) produced 6-LB10H13 and 6-(HO3SO)B10H13 as major products with B6H10 and [B9H14]− as minor products. All these derivatives were characterized by 11B NMR, 1H NMR, 13C NMR and negative ESI. This study elucidated some facts and ideas that were not clear concerning the mechanism of opening reaction of closo-[B10H10]2−. |
| Uitgever: |
IOS Press |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 6 van 8 gevonden artikelen
| << vorige | volgende >> |