Preparation, structure and reactivity of the nonbonded organoditantalum(IV) complexes (. eta. -C sub 5 Me sub 4 Ta sub 2 (. mu. -X) sub 4 ) (R = Me, Et; X = Cl, Br), precursors to the doubly bonded organoditantalum(III) complexes (. eta. -C sub 5 Me sub 4 R) sub 2 Ta sub 2 (. mu. -X) sub 4

Journal Article · Wed Jan 25 04:00:00 EST 1989 · Inorganic Chemistry; (USA)

DOI:https://doi.org/10.1021/ic00301a002· OSTI ID:5145684

Ting, Ching; Messerle, L ^[1]

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1. Univ. of Iowa, Iowa City (USA)

It is reported that a dinuclear organoditantalum(IV) complex is an isolable intermediate in the reductive dimerization of the mononuclear (peralkylcyclopentadienyl)-tantalum(V) complexes ({eta} -C{sub 5}Me{sub 4}R)TaX{sub 4} where R=Me, Et; X=Cl, Br to the doubly bonded organoditantalum(III) complexes ({eta}-C{sub 5}Me{sub 4}R{sub 2})Ta({mu}-x){sub 4}. This intermediate compound was found to be paramagnetic in solution and to have a solid-state structure with two bridging halogen atoms and no tantalum-tantalum bonding interaction. The reactivity of this intermediate complex should render it very useful for the preparation of other Ta(IV) complexes and, through oxidative addition, Ta(V) organometallics. 4 tabs., 1 fig., 21 refs.

• DOE Contract Number: FG22-85PC80513
• OSTI ID: 5145684
• Journal Information: Inorganic Chemistry; (USA), Journal Name: Inorganic Chemistry; (USA) Vol. 28:2; ISSN 0020-1669; ISSN INOCA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKANES
BROMINE COMPOUNDS
CHEMICAL PREPARATION
CHLORINE COMPOUNDS
DATA
EXPERIMENTAL DATA
HALOGEN COMPOUNDS
HYDROCARBONS
INFORMATION
MAGNETISM
MOLECULAR STRUCTURE
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANOMETALLIC COMPOUNDS
PARAMAGNETISM
REFRACTORY METAL COMPOUNDS
SYNTHESIS
TANTALUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS