Group 15 ligand migration in the heteronuclear clusters RuOs3(μ-H)2(CO)12(EPh3) (E=P, As, Sb)

Inside Cover: Fabrication of Layer‐by‐Layer Assembled Biomimetic Nanochannels for Highly Sensitive Acetylcholine Sensing (Chem. Eur. J. 24/2013)

“…In the last few years however breakthroughs have been achieved in the isolation of stable complexes with bridging PR 3 ,8, 9 and more recently PR 3 migration between metal centers via bridging PR 3 intermediates or transition states has also been detected by dynamic NMR‐spectroscopic studies of several systems, including a metal dimer [(η 5 ‐C 5 Me 5 ) 2 Ru 2 (μ‐H) 2 PR 3 ] (R=Me, Et, i Pr, Cy, Bz, OMe, OPh)10 and metal clusters, such as [PtRu 5 (μ 6 ‐C)(CO) 15 (PMe 2 R)] (R=Ph and Me),11a and [RuOs 3 (μ‐H) 2 (CO) 12 (μ 6 ‐C)PPh 3 ] 11b. Even so, the inability of PR 3 to participate in the classical Adams–Cotton fluxional process is still generally accepted, and thus it has been difficult to classify PR 3 as a normal “fluxional ligand”.…”