TY - JOUR
T1 - Capping the thiaborate anion [7-nido-SB10H11]−
AU - Serrate, Maria Antonia T
AU - Ellis, David
AU - Rosair, Georgina Margaret
AU - Welch, Alan Jeffrey
PY - 2013/12/1
Y1 - 2013/12/1
N2 - The salt [HNEt3][7-nido-SB10H11]isolated from the roomtemperature reaction between B10H14, elemental Sand NEt3 by the method of Štíbr and co-workers isessentially pure.The salt has been structurally characterised by X-ray diffraction and its 11BNMR spectrum fully assigned, correcting a previous mis-assignment. Deprotonation ofthe [7-nido-SB10H11]− anionfollowed by treatment with HBBr2·SMe2 affords theicosahedral thiaborane 1-closo-SB11H11 ingood yield at ambient temperature. Similarly, deprotonation of [7-nido-SB10H11]− followedby metallation affordsthe metallathiaboranes 2-(η-C5H5)-2,1-closo-CoSB10H10 (2),2-(η-C9H7)-2,1-closo-CoSB10H10 (3)and 2-(η-C10H14)-2,1-closo-RuSB10H10 (4)in good to excellent yields. Compounds 2–4 have allbeen characterised spectroscopically and crystallographically. Comparativeelectrochemical study of 2 and the related species 3-(η-C5H5)-3,1,2-closo-CoC2B9H11 showsthat the [7-nido-SB10H10]2− ligandis a poorer e-doner to Co than is the analogous carborane ligand[7,8-nido-C2B9H12]2−.
AB - The salt [HNEt3][7-nido-SB10H11]isolated from the roomtemperature reaction between B10H14, elemental Sand NEt3 by the method of Štíbr and co-workers isessentially pure.The salt has been structurally characterised by X-ray diffraction and its 11BNMR spectrum fully assigned, correcting a previous mis-assignment. Deprotonation ofthe [7-nido-SB10H11]− anionfollowed by treatment with HBBr2·SMe2 affords theicosahedral thiaborane 1-closo-SB11H11 ingood yield at ambient temperature. Similarly, deprotonation of [7-nido-SB10H11]− followedby metallation affordsthe metallathiaboranes 2-(η-C5H5)-2,1-closo-CoSB10H10 (2),2-(η-C9H7)-2,1-closo-CoSB10H10 (3)and 2-(η-C10H14)-2,1-closo-RuSB10H10 (4)in good to excellent yields. Compounds 2–4 have allbeen characterised spectroscopically and crystallographically. Comparativeelectrochemical study of 2 and the related species 3-(η-C5H5)-3,1,2-closo-CoC2B9H11 showsthat the [7-nido-SB10H10]2− ligandis a poorer e-doner to Co than is the analogous carborane ligand[7,8-nido-C2B9H12]2−.
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-84887052920&partnerID=MN8TOARS
U2 - 10.1016/j.jorganchem.2013.04.042
DO - 10.1016/j.jorganchem.2013.04.042
M3 - Article
SN - 0022-328X
VL - 747
SP - 211
EP - 216
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
ER -