Alkyne-promoted H2 loss in a metallaborane: nido-to-closo cluster transformation and sp C-H bond oxidative addition.
A sensitive cluster: The labile rhodathiaborane [(PPh(3))(2)(H)-nido-RhSB(9)H(9)(NC(5)H(5))] combines the redox and coordinative flexibility of the {(PPh(3))(2)(H)Rh} fragment with the capability of the 11-vertex rhodathiaborane cluster to undergo oxidative nido-to-closo transformations induced by coordination of alkynes to the metal centre, which leads to hydrogenation of the triple bond, dehydrogenation of the cluster and oxidative addition of sp C-H bonds.
Instituto Universitario de Catálisis Homogénea, Universidad de Zaragoza, Calle Pedro Cerbuna 12, 50009-Zaragoza, Spain.
Alvaro
A
Alvarez
Ramón
R
Macías
Jonathan
J
Bould
Carmen
C
Cunchillos
Fernando J
FJ
Lahoz
Luis A
LA
Oro