Premium
From AlCp*‐ and GaCp*‐Ligated Ruthenium Hydrides to Zinc‐Rich Heterometallic Complexes
Author(s) -
Molon Mariusz,
Gemel Christian,
Fischer Roland A.
Publication year - 2013
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201300317
Subject(s) - chemistry , ruthenium , hydride , reactivity (psychology) , ligand (biochemistry) , medicinal chemistry , redox , zinc , stereochemistry , inorganic chemistry , catalysis , organic chemistry , metal , biochemistry , alternative medicine , receptor , pathology , medicine
The reactivity of ZnMe 2 towards heteroleptic (poly)hydride ruthenium complexes was investigated. The Ru centers were coligated with different ligands including reactive low‐valent ECp* (E = Ga, Al; Cp* = pentamethylcyclopentadienyl) ligands and nonreactive phosphane ligands (PCy 3 , PPh 3 , Cy = cyclohexyl, Ph = phenyl). The ECp* ligands undergo a redox reaction together with Cp*/Me group exchange when treated with ZnMe 2 to form two equivalents of ZnR (R = Cp*, Me) units, and ER 3 species are liberated. Similarly, Ru–H moieties react with ZnMe 2 to form one equivalent of ZnMe and one equivalent of CH 4 . The 18‐electron rule proved valid for the rationalization of the obtained compositions; one ECp* or phosphane ligand is equivalent to two one‐electron ZnR or H ligands. The factors that control the exchange of phosphane or hydride ligands are discussed. All compounds were characterized by NMR and IR spectroscopy, liquid injection field desorption ionization (LIFDI) MS analysis, single‐crystal X‐ray diffraction, and elemental analysis.