Reaction of 1,3,5‐Triazacyclohexanes with TiCl 4 : Formation of Cationic Complexes

Autor:	Philip Kampe, Randolf D. Köhn, Gabriele Kociok-Köhn
Rok vydání:	2005
Předmět:	Inorganic Chemistry Solvent Hydrogen bond Stereochemistry Chemistry Cationic polymerization Proton NMR Ring (chemistry) Medicinal chemistry Ion
Zdroj:	European Journal of Inorganic Chemistry. 2005:3217-3223
ISSN:	1099-0682 1434-1948
Popis:	N-substituted 1,3,5-triazacyclohexanes [R3TAC; R = cyclohexyl, p-fluorobenzyl or Ph(CH2)n (n = 1, 2, 3)] react with excess TiCl4 to give the corresponding cationic κ3 complexes [(R3TAC)TiCl3][Ti2Cl9]. Attempts to prepare complexes with titanium-free anions at lower Ti:R3TAC ratio or with added Me3SiOTf lead to the same cations with [Ti2Cl10]2– and [Ti2Cl8(OTf)]– anions. Five complexes as well as (p-fluorobenzyl)3TAC have been characterised by X-ray crystallography. The ring C–H bonds engage in hydrogen bonding interactions in the crystals and strongly solvent and anion dependent 1H NMR signals are detected in solution. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)
Databáze:	OpenAIRE
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