Compounds with Heteronuclear Bonds between Transition Metals

Synthesis of a New Family of Heteronuclear Thiolate Iron Complexes that Contain Isocyanide Ligands

“…[1] With two or more disparate metal centers in a single molecule, the potential exists for cooperative behavior that can improve the selectivity and efficiency of catalyzation and can promote reactions that are not possible using a single metal center. [2] Ironsulfur complexes have received increasing attention on account of their unusual structures and occurrence in biological metalloproteins including nitrogenase, hydrogenase, and ferredoxins.…”

Heterosite Effects in Novel Heteronuclear Clusters [Os2Ru(CO)11(PPh3)] and [Os2Ru(CO)10(2‐acetylpyridine‐N‐isopropylimine)]

“…A similar difference in Lewis base coordination on descending a transition metal group in the peri-odic table is observed, for example, for the coordinatively unsaturated radicals [M(CO) 3 (α-diimine)]· (M = Mn, Re; α-diimine is, e.g., bpy, iPr-PyCa, iPr-DAB). Thus, while the unsaturated radicals [Re(CO) 3 (α-diimine)]· form at room temperature fairly stable 18e paramagnetic species [Re(CO) 3 -(α-diimine)(Sv)]· (Sv = MeCN, PrCN), [56][57][58] analogous radicals were not observed for [Mn(CO) 3 (α-diimine)]·. [59] Redox Behaviour of [Os 2 Ru(CO) 10 …”

“…The heteronuclear cluster [Os 2 Ru(CO) 12 ] (1) was synthesized from its homonuclear analogues [Os 3 (CO) 12 ] and [Ru 3 (CO) 12 ] in a four-step reaction sequence (Scheme 1). Starting from [Os 3 (CO) 12 ], the linear cluster [Os 3 (CO) 12 -(Br) 2 ] was obtained by oxidation with Br 2 in refluxing CH 2 Cl 2 [step (i)].…”

“…[3,11] 12 ] are of particular interest for our investigations, as the bonding properties, photochemistry and redox behaviour of the homonuclear dodecacarbonyl analogues and, in particular, their α-diimine-substituted derivatives [M 3 (CO) 10 (α-diimine)] (M = Ru, Os), have been studied thoroughly in our groups. [12][13][14][15][16][17][18][19][20][21] A continued systematic study of their heterometallic Ru/Os derivatives is desired in order to reveal the influence of the cluster core variation on the photochemistry and redox reactivity.…”

“…[1][2][3][4] The interest in this type of clusters where at least one metal-metal bond con-that forms biradicals as the main primary photoproduct even in strongly coordinating solvents, zwitterion formation from the solvated lowest excited state is observed for the heterometallic cluster. This is concluded from time-resolved absorption studies in the microsecond time domain.…”