917865-14-6Relevant academic research and scientific papers
Synthesis, reactivity and structural studies of selenide bridged carboranyl compounds
Laromaine, Anna,Teixidor, Francesc,Kivekaes, Raikko,Sillanpaeae, Reijo,Arca, Massimiliano,Lippolis, Vito,Crespo, Eulalia,Vinas, Clara
, p. 5240 - 5247 (2006)
Reaction of the lithium salt Li[1-R-1,2-closo-C2B 10H10] with selenium under mild conditions, followed by hydrolysis gave the diselenide compound (1-Se-2-R-1,2-closo-C2B 10H10)2 in contrast to the well-reported mercapto compounds 1-SH-2-R-1,2-closo-C2B10H10 obtained using a similar synthetic procedure. Details for the preparation and X-ray structural characterisation of the new compounds (2-Me-1,2-closo-C 2B10H10)2Se (1), (1-Se-2-R-1,2-closo-C2B10H10)2 (R = Me,2, Ph, 3) are specified. To further explore the mechanism of the dimerization reaction, the complex [Au(1-Se-2-Me-1,2-closo-C2B10H 10)(PPh3)] 4 was synthesized, confirming the existence of the intermediate Li[1-Se-2-R-1,2-closo-C2B10H 10] at the early stages of the reaction before selenium oxidation. Theoretical calculations and cyclic voltammetry (CV) studies were carried out to compare the bonding nature of the sulfur and the selenium analog compounds. It was determined that diselenides have a higher tendency to reduce with respect to the disulfides and all chalcogen atoms were found to be positively charged. The Royal Society of Chemistry 2006.
