Indenyl and indacenyl ligands in homo and heterobimetallic complexes

Reactions of Pyridyl Side Chain Functionalized Indenes with Ru3(CO)12

“…When 5 was treated with Ru 3 (CO) 12 , only compound 23 (15 %) was obtained. Compounds 19 and 21 show similar three carbonyl group absorptions at 2050-1954 cm -1 in their IR spectra and have similar 1 H NMR signals, which indicates that they have similar structures. X-ray diffraction analysis showed that 21 is an ionic cluster ( Figure 7).…”

“…Each of the indenyl ligands donates a total of 9 electrons, so the valence electrons of 8 are 62, which is in accord with the theoretical value. [11] There is a µ 3 -CO ligand [C(14)-O (14)] that is 1 H NMR spectrum of 8 shows the existence of only one isomer. This indicates that they may exist as one form in solution; however, the fact that a rapid fluxional process exists cannot be excluded.…”

“…94-95°C. 1 12 in Xylene: By using a similar procedure to that described above, reaction of ligand precursor 2 with Ru 3 (CO) 12 gave red product 10 and orange product 9 in 26 and 13 % yield, respectively. Data for 9: M.p.…”

“…Indenyl metal complexes have received increasing attention due to the diverse and flexible hapticities and the enhanced reactivities both in stoichiometric reactions and catalysis; [1] this is sometimes referred to as the indenyl effect. [2] More than 10 coordination modes have been found for the indenyl ligand.…”

Molecular conformations and π-hydrogen bonds in anti- and syn-binuclear Rh(I) complexes of as-indacene-diide: a computational study

“…Recently, some of us synthesised monometallic rhodium derivatives of s-and as-hydroindacenide and bimetallic rhodium complexes of s-and as-indacene-diide [2][3][4][5][6]. Other research groups studied homo-binuclear complexes of Fe, Co, Ni, Mn, with the same aromatic 14-p-electron spacers [7][8][9][10][11][12][13], which have been identified as suitable bridging ligands in view of strong electronic interactions between the two coordinated metal centres.…”