| Abstrakt: |
Reaction of LTiCl3(L = 1,4,7-trimethyl-1,4,7-triazacyclononane) in CH3OH with sodium 2,4-pentanedionate (acac) in the presence of air yields upon addition of NaClO4yellow crystals of the tetranuclear complex [{LTi(OCH3)}2(μ-O)4{Ti(acac)2}2](ClO4)2·2H2O (1), the crystal structure of which has been determined. Crystal data: monoclinic, P21/c, a = 9.563(4), b = 22.695(8), c = 13.842(5)Å, β = 93.69(3)°; Z = 2. The 400 MHz 1H NMR spectrum shows that two different isomers with Δ, Λ -configuration at the Ti(acac)2(μ-O)2- and (δδδ) or (λλλ) conformation at the LTi(OCH3)(μ-O)2-fragment cocrystallize. |
