Organoruthenium chalcogen complexes: synthesis of tert-butyl-cyclopentadienyl dicarbonyl ruthenium thio- and seleno-carboxylate complexes and crystal structure determination of (tBuC5H4)Ru(CO)2SCO(3-NO2C6H4) and (tBuC5A4)Ru(CO)2SeCO(3,5-(NO2)2C6H3)
摘要:
The substituted cyclopentadienyl organoruthenium dimers [((t)Bu-C5H4)Ru(CO)(2)](2)(I) and [(1,3-(t)Bu(2)-C5H3)Ru(CO)(2)](2)(II) were prepared from the reaction of Ru-3(CO)(12) with t-butyl cyclopentadiene or 1,3-di-t-butylcyclopentadiene. The thermal reaction of dimer I with elemental sulfur or selenium afforded mixtures of organoruthenium polysulfides and polyselenides from which the binuclear pentasulfur and pentaselenium bridged complexes [((t)Bu-C5H4)Ru(CO)(2)](2)(mu-S-5)(III) and [((t)Bu-C5H4)Ru(CO)(2)](2)(mu-Se-5)(IV) were isolated and characterized. The organoruthenium sulfides and selenides readily react with acid chlorides RCOCl to give the S-bonded and the Se-bonded monothio- and monoseleno-carboxylate derivatives ((t)Bu-C5H4)Ru(CO)(2)ECOR)(E = S, Se; R = 3-NO2-C6H4, 4-NO2-C6H4, 3,5-(NO2)(2)-C6H3). The crystal structures of [((t)Bu-C5H4)Ru(CO)(2)SCO(3-NO2-C6H4)] and [((t)Bu-C5H4)Ru(CO)(2)SeCO(3,5-(NO2)(2)C6H3)] were determined.