12560-38-2Relevant academic research and scientific papers
Synthesis of trinuclear mixed-metal clusters Os2Fe(CO)10L2 (L = OH, I, CO). The crystal structures of Os2Fe(CO)10(μ-OH)2 and Os2Fe(CO)12 · 0.41Os3(CO)12
Maksakov,Kirin,Virovets,Podberezskaya,Semyannikov
, p. 57 - 62 (2007/10/03)
The heterometallic clusters Os2Fe(CO)10(μ-X)2 (X = OH, I) were obtained from the binuclear osmium complexes Os2(CO)6Xn (X = Cl, n = 4; X = I, n = 2). The structure of Os2Fe(CO)10(μ-OH)2 was determined by a single-crystal X-ray diffraction analysis. The crystal is triclinic and crystallizes in the space group P1 and a = 14.009(6), b = 13.330(4), c = 9.511(2) A, α = 103.69(2), β = 81.83(3), γ = 102.22(3)°, V = 1699(1) A3, Z = 4, Dcalc = 2.969 g cm-3, R = 0.093 for 2359 independent reflections (Fo > 6σ(Fo)). The cluster consists of an open triangular OsFeOs metal core with no Os-Os bond. The bridging OH groups are coordinated semiaxially and span the Os-Os edge. On heating in the presence of an excess of Fe2(CO)9, the Os2Fe(CO)10(μ-I)2 cluster is converted to Os2Fe(CO)12. The co-crystallate Os2Fe(CO)12 · 0.41Os3(CO)12 was isolated from the solution of Os2Fe(CO)10(μ-I)2, as the product of decomposition of the initial cluster. It crystallizes in the monoclinic system, space group P21/n, with a = 8.056(2), b = 14.743(2), c = 14.520(2) A, β = 100.62(1)°, V = 1695.0(5) A3, Z = 4, Dcalc = 3.179 g cm-3 and R = 0.0250 for 1997 independent reflections (Fo > 4σ(Fo)).
