Soluble mono(pentamethylcyclopentadienyl)zirconium hydrides: X-ray structure of (C sub 5 Me sub 5 ) sub 2 Zr sub 2 (. mu. -H) sub 3 Cl sub 3 (PMe sub 3 )
- Rijksuniversiteit Groningen Nijenborgh (Netherlands)
The 14-electron alkyl complex Cp*Zr-((CH{sub 2}){sub 3}NMe{sub 2})Cl{sub 2} (Cp* = {eta}{sup 5}-C{sub 5}Me{sub 5}), containing a chelating (dimethylamino)propyl ligand, reacts with H{sub 2} to form a soluble crystallizable mono-Cp zirconium hydride with a complicated stoichiometry, tentatively formulated as Cp*{sub 3}Zr{sub 3}H{sub 4}Cl{sub 5}. Reaction of this compound with PMe{sub 3} induces disporportionation, in which Cp ZrCl{sub 3}(PMe{sub 3}) and Cp*{sub 2}Zr{sub 2}({mu}-H){sub 3}Cl{sub 3}(PMe{sub 3}), the first early-transition-metal ({mu}-H){sub 3}-bridged dimer, are formed. An X-ray structure determination of this compound (space grouped P2{sub 1}/c, a = 15.599 (3) {angstrom}, b = 11.203 (3) {angstrom}, c = 16.682 (4) {angstrom}, {beta} = 103.27 (2){degree} at 130 K, Z = 4) showed that one Cp*ZrCl(PMe{sub 3})- and one Cp*ZrCl{sub 2}- moiety are bridged by three hydride ligands, with Zr-H distances ranging from 1.92 (3) to 2.35 (5) {angstrom} and Zr-H-Zr angles from 85.9 (17) to 104.1 (19){degree}.
- OSTI ID:
- 7246291
- Journal Information:
- Organometallics; (USA), Journal Name: Organometallics; (USA) Vol. 9:2; ISSN 0276-7333; ISSN ORGND
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400200* -- Inorganic
Organic
& Physical Chemistry
CALCULATION METHODS
CRYSTAL STRUCTURE
DATA
DATA ANALYSIS
EXPERIMENTAL DATA
HYDRIDES
HYDROGEN COMPOUNDS
INFORMATION
LIGANDS
MEASURING INSTRUMENTS
MEASURING METHODS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
ZIRCONIUM COMPOUNDS
ZIRCONIUM HYDRIDES