Bildung und Kristallstruktur eines dimeren sauerstoffverbrückten Titanaminobisphenoxides

Autor: Elmar Hecht, Jens Baldamus
Rok vydání: 2003
Předmět:
Zdroj: Zeitschrift für anorganische und allgemeine Chemie. 629:188-191
ISSN: 1521-3749
0044-2313
DOI: 10.1002/zaac.200390029
Popis: Formation and Crystal Structure of an Oxygen Bridged Titanium Amino Bisphenoxide Di-(μ-oxo)-titan-bis[aminobisphenoxide] (3) was obtained by reaction of (i-Prop)2TiL* (2) {L* = O-4, 6-(t-Bu)2C6H2-2-CH2-[1, 4-N2C5H10]-2'-CH2-4', 6'-(t-Bu)2C6H2O] with water in a molar ratio 1:1 in diethylether. Both i-Propyl moieties are substituted yielding the dimeric oxygen bridged amino bisphenoxide complex. The six coordinate Ti atoms are a result of Ti—N and Ti—O interactions of the corresponding atoms of the amino bisphenoxide ligand and the bridging O atoms. The central planar Ti2O2 ring may be considered as the general structural feature of the title compound: Space group P1¯, Z = 1, lattice dimensions at —60°C: a = 11.6899(4), b = 11.7873(4), c = 12.6462(4) A, α = 98.070(1), β = 99.660(1), γ = 95.343(1)°, R1 = 0.0469, wR2 = 0.1049, GooF = 0.939.
Databáze: OpenAIRE
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