Trinuclear and tetranuclear iron/ruthenium carbonyl clusters stabilized by bridging selenium ligands

Abstract

At room temperature, Fe 2(CO) 6(μ-Se 2) reacts with Ru 3(CO) 12 to form Fe 2Ru 3(CO) 17(μ 4-Se)(μ 3-Se), and with Ru(CO) 4(C 2H 2) to form Fe 2Ru(CO) 9(μ 3-Se) 2. The latter reacts with Fe(CO) 5 under visible light irradiation to give Fe 3Ru(CO) 11(μ 4-Se) 2, and with Ru(CO) 4(C 2H 4) to form Fe 2Ru 2(CO) 11(μ 4-Se) 2. Visible light irradiation of a solution containing Fe 3(CO) 9(μ 3-Se) 2 and Fe(CO) 5 yields Fe 4(CO) 11(μ 4-Se) 2. A solution containing Fe 3(CO) 9(μ 3-Se) 2 and Ru(CO) 4(C 2H 4) at room temperature with stirring yielded Fe 3Ru(CO) 11(μ 4-Se) 2.