trans-Acetyldicarbonyl(η5-cyclopentadienyl)(methyldiphenylphosphane)molybdenum(II)
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چکیده
The title compound, [Mo(C(5)H(5))(C(2)H(3)O)(C(13)H(13)P)(CO)(2)], was prepared by reaction of [Mo(CH(3))(C(5)H(5))(CO)(3)] with methyl-diphenyl-phosphane. The Mo(II) atom exhibits a four-legged piano-stool coordination geometry with the acetyl and phosphane ligands trans to each other. There are several inter-molecular C-H⋯O hydrogen-bonding inter-actions involving carbonyl and acetyl O atoms as acceptors. A close nearly parallel π-π inter-action between the cyclo-penta-dienyl plane and the phenyl ring of the phosphane ligand is present, with an angle of 6.4 (1)° between the two least-squares planes. The centroid-to-centroid distance between these groups is 3.772 (3) Å, and the closest distance between two atoms of these groups is 3.449 (4) Å. Since each Mo complex is engaged in two of these inter-actions, the complexes form an infinite π-stack coincident with the a axis.
منابع مشابه
Crystal structures of trans-acetyldicarbonyl(η5-cyclopentadienyl)(dimethylphenylphosphane)molybdenum(II) and trans-acetyldicarbonyl(η5-cyclopentadienyl)(ethyldiphenylphosphane)molybdenum(II)
The title compounds, [Mo(C5H5)(COCH3)P(CH3)2(C6H5)(CO)2], (1), and [Mo(C5H5)(COCH3)P(C2H5)(C6H5)2)(CO)2], (2), have been prepared by phosphine-induced migratory insertion from [Mo(C5H5)(CO)3(CH3)]. Both complex mol-ecules exhibit a four-legged piano-stool geometry with trans-disposed carbonyl ligands along with Mo-P bond lengths and C-Mo-P angles that reflect the relative steric pressure of the...
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The title compound, [Mo(C5H5)(C2H3O)(C12H9O3P)(CO)2], was prepared by reaction of [Mo(C5H5)(CO)3(CH3)] with tris-(furan-2-yl)phosphane. The Mo(II) atom exhibits a four-legged piano-stool coordination geometry with the acetyl and phosphine ligands trans to each other. The O atom of the acetyl ligand points down, away from the Cp ring. In the crystal, mol-ecules form centrosymmetrical dimers via ...
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In the title compound, [Mo(C(5)H(5))(CO)(2)(C(3)H(9)P)(2)]CF(3)SO(3), the cationic complex displays a classical four-legged piano-stool square-pyramidal geometry with a trans configuration of the basal ligands around the Mo atom. The cyclo-penta-dienyl (Cp) ligand occupies the apical position of the piano-stool configuration. The average Mo-P bond length of the two trans PMe(3) ligands is 2.474...
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The structure of the title compound, [Mo(C(5)H(5))Cl(CO)(3)], reveals a pseudo-square-pyramidal piano-stool coordination around the Mo(II) ion, which is surrounded by a cyclo-penta-dienyl ring, three carbonyl groups and a chloride ligand.
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The asymmetric unit of the title compound, [Mo(2)(C(5)H(5))(2)(C(7)H(7)S)(2)(CO)(2)], consists of two half-mol-ecules, each molecule lying on a centre of symmetry. The thiol-ate groups function as bridges between the Mo(II) atoms, which adopt a quasi-octa-hedral geometry. In the octa-hedral environment the two ligating S atoms are in a cis arrangement.
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