Group IV mixed sandwich compounds: Synthesis of pentamethylcyclopentadienyl-titanium, -zirconium and -hafnium cycloheptatrienyl and cyclooctatetraene complexes
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چکیده
منابع مشابه
Synthesis and characterization of the cycloheptatrienyl tantalum "mixed-sandwich" compounds (c5r5)ta(c7h7).
The molecule (cycloheptatrienyl)(cyclopentadienyl)tantalum, (C(5)H(5))Ta(C(7)H(7)) (1), and its methylcyclopentadienyl and pentamethylcyclopentadienyl analogues (C(5)H(4)Me)Ta(C(7)H(7)) (2), and (C(5)Me(5))Ta(C(7)H(7)) (3) have been synthesized by magnesium reduction of the corresponding (C(5)R(5))TaCl(4) species in the presence of cycloheptatriene. The crystal structures of 2 and 3 show that t...
متن کاملMixed sandwich thorium complexes incorporating bis(tri-isopropylsilyl)cyclooctatetraenyl and pentamethylcyclopentadienyl ligands: synthesis, structure and reactivity.
The Th(iv) mixed-sandwich halide complexes Th(COT(TIPS2))Cp*X (where COT(TIPS2) = 1,4-{Si(i)Pr(3)}(2)C(8)H(6), X = Cl, I) have been synthesised, and structurally characterised. When Th(COT(TIPS2))Cp*I is reduced in situ in the presence of CO(2), a mixture of dimeric carboxylate and oxalate complexes {Th(COT(TIPS2))Cp*}(2)(μ-κ(1):κ(2)-CO(3)) and {Th(COT(TIPS2))Cp*}(2)(μ-κ(2):κ(2)-C(2)O(4)) are f...
متن کاملBis-cyclooctatetraene tripalladium sandwich complexes.
We report synthesis and structural characterization of bis-cyclooctatetraene trinuclear palladium sandwich complexes. The non-planar cyclooctatetraene ligands flank an isosceles Pd3 triangle, which is supported by one equatorial ligand.
متن کاملSynthesis, Spectral and Antibacterial Studies of Binuclear Titanium(IV) / Zirconium(IV) Complexes of Piperazine Dithiosemicarbazones
The reactions of mono(cyclopentadienyl)titanium(IV) trichloride and bis(cyclopentadienyl)titanium(IV)/ zirconium(IV) dichloride with a new class of dithiosemicarbazone, derived by condensing piperazine dithiosemicarbazide with benzaldehyde (L(1)H(2)), 2-chlorobenzaldehyde (L(2)H(2)), 4-nitrobenzaldehyde (L(3)H(2)) or salicylaldehyde (L(4)H(4)) have been studied and different types of binuclear ...
متن کاملAmineborane dehydrogenation promoted by isolable zirconium sandwich, titanium sandwich and N(2) complexes.
Catalytic dehydrogenation of R(2)NHBH(3) (R = Me, H) promoted by a family of bis(cyclopentadienyl)titanium and bis(indenyl)zirconium compounds is reported; structure-reactivity relationships as a function of cyclopentadienyl and indenyl substituents have been examined.
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ژورنال
عنوان ژورنال: Journal of Organometallic Chemistry
سال: 1985
ISSN: 0022-328X
DOI: 10.1016/0022-328x(85)80397-1