Synthesis and structural characterization of (C sub 5 Me sub 5 )Zr(R) sub 2 (L) sub n sup + complexes

Journal Article · Sat Sep 01 00:00:00 EDT 1990 · Organometallics; (United States)

DOI:https://doi.org/10.1021/om00159a028· OSTI ID:6070054

Crowther, D J; Jordan, R F; Baenziger, N C; Verma, A ^[1]

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1. Univ. of Iowa, Iowa City (United States)

The reaction of (C{sub 5}Me{sub 5})Zr(CH{sub 3}){sub 3} with ((C{sub 5}H{sub 4}Me){sub 2}Fe)(BPh{sub 4}) in THF yields ((C{sub 5}Me{sub 5})Zr(CH{sub 3}){sub 2}(THF){sub 2})(BPh{sub 4}) (1) via oxidative cleavage of a Zr-CH{sub 3} bond. X-ray diffraction reveals that the cation of 1 adopts a square-pyramidal/four-legged piano-stool structure with cis CH{sub 3} groups. The orientations of the THF ligands and the Zr-O bond distances suggest that Zr-O {pi}-bonding is important for at least one of the THF ligands. Data for 1: a = 14.551 (2) {angstrom}, b = 15.191 (4) {angstrom}, c = 17.852 (19) {angstrom}, {beta} = 92.26 (3){degree}, V = 3,943 (6) {angstrom}{sup 3}, Z = 4 in space group P2{sub 1}/c. Reaction of 1 with excess dmpe in THF solution yields ((C{sub 5}Me{sub 5})Zr(CH{sub 3}){sub 2}(dmpe)(THF))(BPh{sub 4}) (2), which also has been characterized by X-ray diffraction.

• DOE Contract Number: FG02-88ER13935
• OSTI ID: 6070054
• Journal Information: Organometallics; (United States), Vol. 9:9; ISSN 0276-7333
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ZIRCONIUM COMPLEXES
CHEMICAL PREPARATION
MOLECULAR STRUCTURE
BOND ANGLE
BOND LENGTHS
BORON COMPOUNDS
CYCLOPENTADIENE
IRON COMPLEXES
NMR SPECTRA
TETRAHYDROFURAN
X-RAY DIFFRACTION
ALKENES
COHERENT SCATTERING
COMPLEXES
CYCLOALKENES
DIENES
DIFFRACTION
DIMENSIONS
FURANS
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
LENGTH
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
POLYENES
SCATTERING
SPECTRA
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
400201* - Chemical & Physicochemical Properties