Two‐ and Three‐Dimensional Coordination Polymers From the Reaction of Bis‐ and Tris(2‐aminoethyl)amine with Titanium and Zirconium Alkoxides

Autor:	Michael Puchberger, Ulrich S. Schubert, Helmut Fric
Přispěvatelé:	Chemical Engineering and Chemistry
Rok vydání:	2007
Předmět:	Tris Zirconium Chemistry Stereochemistry chemistry.chemical_element Tris(2-aminoethyl)amine Medicinal chemistry Adduct Inorganic Chemistry chemistry.chemical_compound Molecule Amine gas treating Two-dimensional nuclear magnetic resonance spectroscopy Titanium
Zdroj:	European Journal of Inorganic Chemistry, 2007(3), 376-383. Wiley-VCH Verlag
ISSN:	1099-0682 1434-1948
DOI:	10.1002/ejic.200600743
Popis:	The reaction of bis(2-aminoethyl)amine with M(OiPr) 4 (M = Ti, Zr) affords the chain-like coordination polymers [M 2 (OiPr) B -(H 2 NCH 2 CH 2 NHCH 2 CH 2 NH 2 )] ∞ , where only the NH 2 groups of the amine are coordinated to the M 2 (OiPr) 8 units. 2D NMR spectroscopy shows that the adducts dissociate into the starting compounds when dissolved in CD 2 Cl 2 but are slowly re-formed in solution over a period of two weeks. Puckered layers of condensed six-membered rings of [Ti 2 (OiPr) 8 ] 3 [N(CH2CH2NH2) 3 ] 2 are formed when [Ti(OiPr) 4 ] is treated with tris(2-aminoethyl)amine. The voids in the center of the rings are filled by non-coordinated Ti 2 (OiPr) 8 guest molecules. In contrast, chains of [Zr 2 (OiPr) 8 -(H 2 NCH 2 CH 2 NR'CH 2 CH 2 NH 2 )]{R'=CH 2 CH 2 NH 2 [Zr 2 (OiPr) 8 -(HOiPr)]} are formed upon treatment of tris(2-aminoethyl)-amine with [Zr(OiPr) 4 ].
Databáze:	OpenAIRE
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