Synthesis and characterization of new 10-and 12-vertex CO-ligated metallathiaboranes

0389907 - ÚACH 2013 RIV CH eng J - Článek v odborném periodiku
Luaces, S. - Bould, Jonathan - Macias, R. - Sancho, R. - Garcia-Orduna, P. - Lahoz, F.J. - Oro, L.A.
Synthesis and characterization of new 10-and 12-vertex CO-ligated metallathiaboranes.
Journal of Organometallic Chemistry. Roč. 721, DECEMBER (2012), s. 23-30. ISSN 0022-328X. E-ISSN 1872-8561
Grant CEP: GA ČR(CZ) GAP207/11/1577
Výzkumný záměr: CEZ:AV0Z40320502
Klíčová slova: Boron * Thiaborane * Metallathiaborane * Metallaborane * Carbonyl * Cluster
Kód oboru RIV: CA - Anorganická chemie
Impakt faktor: 2.000, rok: 2012

The reaction between [arachno-6-SB9H12](-) and [IrCl(CO)(PMe3)(2)] affords the previously reported 11-vertex cluster, [8,8,8-(CO)(PMe3)(2)-arachno-8,7-IrSB9H10] (4), and small amounts of the new 10-vertex iridathiaborane [9,9,9,9-(CO)(H)(PMe3)(2)-arachno-9,6-IrSB8H10] (5). Alternatively, a rational synthesis of iridathiadecaboranes is effected from the reaction of the 9-vertex anion [arachno-4-SB8H11](-) with [MCl(CO)(PPh3)(2)], to afford new CO-ligated 10-vertex metallathiaboranes of formulation, [9,9,9,9-(CO)(H)(PPh3)(2)-arachno-9,6-MSB8H10], where M = Rh (6) and Ir (7), in useful yields of 61% and 60% respectively. Treatment of the 11-vertex rhodathiaborane, [8,8-(PPh3)(2)-8,7-nido-RhSB9H10] (1) with nBuLi, followed by addition of [IrCl(CO)(PMe3)(2)] affords the 12-vertex iridarhodathiaborane, [1,2-(mu-CO)-1,1,2-(PMe3)(3)-2-(PPh3)-closo-1,2-IrRhSB9H9] (8) in low yield (0.7%). The 10-vertex metallathiaboranes, 5, 6 and 7, and the bimetallic 12-vertex cluster, 8, have been characterized by multinuclear NMR spectroscopy. In addition, the molecular structures of compounds 5, 6, and 8 have been studied by X-ray diffraction.
Trvalý link: http://hdl.handle.net/11104/0218791