Jongbloed LS1, de Bruin B, Reek JN, Lutz M, van der Vlugt JI.
Chemistry. 2015 May 4;21(19):7297-305. doi: 10.1002/chem.201406463. Epub 2015 Mar 24.The synthesis of the reactive PN(C(H) ) ligand 2-di(tert-butylphosphanomethyl)-6-phenylpyridine (1(H) ) and its versatile coordination to a Rh(I) center is described. Facile C-H activation occurs in the presence of a (internal) base, thus resulting in the new cyclometalated complex [Rh(I) (CO)(κ(3) -P,N,C-1)] (3), which has been structurally characterized. The resulting tridentate ligand framework was experimentally and computationally shown to display dual-site proton-responsive reactivity, including reversible cyclometalation. Read More