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Reactions of phenylethynyl lithium with substituted cyclopentenones gave the corresponding pendant phenylethynyl substituted cyclopentadienes. Subsequent deprotonation and transmetallation with TiCl4·2THF, ZrCl4, and Cp∗ZrCl3 yielded the alkyne-functionalized metallocene complexes [C5Me4(C≡CPh)]2MCl2 [M=Ti (1), Zr (2)], Cp∗[C5Me4(C≡CPh)]ZrCl2 (3), and Cp∗[C5H2R′2(C≡CPh)]ZrCl2 [R′=Me (4), Ph (5)]. These complexes were fully characterized by 1H NMR, 13C NMR, MS spectra, and elemental analysis. The molecular structure of 2 was determined by single crystal X-ray diffraction analysis. Ethylene polymerization was studied with these complexes in the presence of methylaluminoxane (MAO). [ABSTRACT FROM AUTHOR]

In the title compound, [Fe(C5H5)(C21H23)], the cyclo­penta­dienyl (Cp) rings deviate slightly from an eclipsed geometry. The cyclo­heptane ring adopts a chair conformation. The unsubstituted and substituted Cp rings form dihedral angles of 55.62 (12) and 54.13 (10)°, respectively, with the indene ring system. [ABSTRACT FROM AUTHOR]

The title centrosymmetric complex, [Mo2(C19H19)(CO)6] or [{(η5-C5H4)C(CH2)4(C9H7)}Mo(CO)3]2, is a binuclear metal carbonyl complex containing an Mo—Mo single bond [3.2405 (9) Å]. The cyclo­pentane ring adopts an envelope conformation. The dihedral angle between the indene and cyclo­penta­diene rings is 57.0 (2)°. [ABSTRACT FROM AUTHOR]

In the title mol­ecule, C23H25NO, the hydroxy H atom is involved in the formation of an intramolecular O—H⋯N hydrogen bond. The dihedral angle between the benzene ring and the 2-naphthol system is 78.1 (1)°. The crystal packing is stabilized by van der Waals forces. [ABSTRACT FROM AUTHOR]