Reactions of Ru3(CO)12 with Ene-yne and Alkoxy-silyl Functionalized Compounds. The Crystal Structure of (μ-H)Ru3(CO)9[μ3-η2-HC=N(CH2)3Si(OEt)3]

Reactions of Fe3(CO)12 with 2-methyl-3-butyn-1-ol and 3-pentyn-1-ol under basic methanolic conditions: The crystal structures of Fe2(CO)6(μ-CO)(μ-η2-[HCC{C(CH3)2}C(O)(OCH3)]) and of (μ-H)Fe3(CO)9(μ3-η3-[H3CCC(CH2)(CH2)CO])

“…In recent times, however, previously unknown structural arrangements and new reaction products have been reported [3][4][5][6]. Complexes 1 and 5 represent further examples of previously unknown structures obtained through already established reaction pathways.…”

“…The ligand pol has formally lost only the oxygen atom: this behaviour has already been observed, although not very frequently [15]. It was not possible evidence if the hydridic ligand comes from the [HFe 3 (CO) 11 ] À anion which is formed in the basic methanolic solutions of Fe(CO) 5 and Fe 3 (CO) 12 [16].…”

Reactions of Co2(CO)8 and of Co2(CO)6L (L=3-pentyn-1-ol, 1,4-butyn-diol or 2-methyl-3-butyn-2-ol) with 2(diphenylphosphino)ethyl-trietoxysilane and tris(hydroxymethyl)phosphine for applications to new sol–gel materials

“…showed the presence of only one orange-red band (3) in about 70% yields and some decomposition. .5 mmol] of Co 2 (CO) 8 was dissolved in heptane under N 2 and 1.0 cm 3 [ca 3.0 mmol] of dpts was added. The milky suspension was refluxed (7 + 7 min), after which time the colour turned to dark brown.…”

“…These ligands also, in some instances, undergo cleavage of the (O=)C-O-NH bonds giving fragments which still coordinate to metals using C@N bonds instead of the alkyne C"C bonds [8]. As a consequence, products different from those expected are obtained, usually in low yields [7].…”

“…The reactions of Co 2 (CO) 8 , Co 2 (CO) 6 L (L = pol, (1), L = bud (1,4-butyn-diol, HOCH 2 C"CCH 2 OH), (2), L = mbo (2-methyl-3-butyn-2-ol, HC"CC(CH 3 ) 2 OH), (3)) with 2(diphenylphosphino)ethyl-triethoysilane [Ph 2 PCH 2 CH 2 Si(OCH 2 CH 3 ) 3 ] (dpts) and tris(hydroxymethyl)phosphine [P(CH 2 OH) 3 ] (thp) were also examined. These ligands could ensure a stable grafting to silicabased materials.…”