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Inne
Reactions of TiCl4 with diesters : crystal structures of [CH2(CO2Et)2Cl4Ti] and [C2H4(CO2CH2CH2OPh)2Cl4Ti].
Autorzy
Rok wydania
1993
Czasopismo
Journal of Organometallic Chemistry
Numer woluminu
443
Strony
85-91
DOI
10.1016/0022-328X(93)80013-2
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Direct reactions of TiCl4 with diethyl malonate in n-hexane or with bis(2-phenoxoethyl) succinate in toluene yield the crystalline compounds [CH2(CO2Et)2Cl4Ti] (1) and [C2H4(CO2CH2CH2OPh)2Cl4Ti] (2), respectively. The crystal structures of both complexes have been determined by a single crystal X-ray diffraction study, and refined by full-matrix least-squares techniques to an R of 0.034 and 0.038 for 1575 and 1490 independent non-zero reflections for 1 and 2, respectively. Crystals of 1 are monoclinic, space group P21/c, Z = 4, a = 7.716(10), b = 18.21(2), c = 12.384(10) Å, β = 127.29(8)°. Crystals of 2 are triclinic, space group P, Z = 2, a = 8.680(12), b = 10. 178(11), c = 14.398(15) Å, α = 78.45 (9), β = 74.16(9), γ = 88.45(9)°. The titanium atoms in 1 and 2 are octahedrally-coordinated by four chlorine atoms and two carbonyl oxygen atoms of coordinated diester molecules. The titanium atoms and the chelate ligand atoms form the six-membered ring in 1 and the seven-membered ring in 2.
Adres publiczny
https://doi.org/10.1016/0022-328X(93)80013-2
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