166660-60-2Relevant academic research and scientific papers
Preparation and crystallographic characterization of [MoCo(CO)5(PPh3)2(η5-C5H5)]
Lue, I-Ren,Lo, Shih-Chun,Lin, Chu-Chieh,Hong, Fung-E
, p. 1419 - 1424 (1995)
Reaction of Na[Mo(CO)3(η5-C5H5)] with CoCl(PPh3)3 in tetrahydrofuranyielded an unusual heterobimetallic compound [MoCo(CO)5(PPh3)2(η5-C 5H5)] (1). Compound 1 was characterized by mass, IR, (1)H, (13)C and (31)P NMR spectra. The X-ray crystal structure of
Reactions of molybdenum-cobalt complex with phenylacetylene: X-ray crystal structure of (η5-C5H5)>
Hong, Fung-E,Lue, I-Ren,Lo, Shih-Chun,Lin, Chu-Chieh
, p. 97 - 102 (1995)
Reaction of 5-C5H5)> (1) with phenylacetylene in tetrahydrofuran at 60 deg C produced a heterobimetallic compound, (η5-C5H5)> (2), in high yield.Compound 2 was characterized by mass, infrared and 1H, 13C and 31P NMR spectra.The X-ray crystal structure of 2 was determined: orthorhombic, Pbca, a = 12.479(3), b = 15.975(3), c = 21.570(3) Angstroem, V = 4299.8(15) Angstroem3 and Z = 8, Rw(F) = 4.00percent for 2143 (F > 4?(F)) observed reflections.In 2, the cobalt fragment is at apical and the molybdenum fragment is at basal position of the pseudo-pentagonal pyramidal structure. (PPh3)(η5-C5H5)> (3) was obtained in excellent yield from the reaction of 1 with phenylacetylene at lower temperature.Compound 3 can be quantitatively converted into 2 by reaction with excess phenylacetylene at 60 deg C.Keywords: Molybdenum; Cobalt
Reactions of Na[Mo(CO)3(η-C5H5)] towards CoCl(PPh3)3 and CoCl(P(OMe)3)5: X-ray crystal structures of [MoCo(CO)6(PPh3)(η5-C5H 5)] and [Mo(CO)3(P(OMe)3)(η5-C5H 5)]2
Hong, Fung-E,Lue, I-Ren,Lo, Shih-Chun,Yang, Yaw-Cherng,Lin, Chu-Chieh
, p. 2793 - 2800 (2008/10/09)
Reaction of Na[Mo(CO)3(η5-C5H5)] with CoCl(PPh3)3 in tetrahydrofuran under 1 atm of CO yielded two heterobimetallic compounds : [MoCo(CO)5(PPh3)2(η5-C 5H5)] (1a) and [MoCo(CO)6(PPh3)(η5-C5H 5)] (1b). Both compounds were characterized by mass, IR, 1H, 13C and 31P NMR spectra. The X-ray crystal structure of 1b was determined. The cobalt centre of 1b has acquired three carbonyl groups and released two triphenylphosphine ligands during the reaction. The only PPh3 which remained on the cobalt centre was in the axial position of the trigonal bipyramidal structure, thus avoiding steric interaction with ligands from the molybdenum fragment. The molybdenum centre is in a 'four-legged piano stool' configuration. From the reaction of Na[Mo(CO)3(η5;-C5H5)] and CoCl(P(OMe)3)5 in tetrahydrofuran, an unexpected bimetallic compound [Mo(CO)2(P(OMe)3)(η5-C5H5)] 2 (6) was obtained which was characterized by mass, IR, 1H, 13C and 31P NMR spectra. The molecular structure of 6 was also determined by X-ray diffraction. The centrosymmetric complex is a typical four-legged piano-stool dimer. The M - M bond length (3.239 A) is longer than the sum of the metal radii. Copyright
