Reaction of 1,3,5-Triazacyclohexanes with TiCl4: Formation of Cationic Complexes (Eur. J. Inorg. Chem. 16/2005)

The cover picture shows the first crystallographically characterized cationic triazacyclohexane complex of titanium. The hydrogen atoms of the ring‐CH2 groups engage in C−H···Cl interactions with the anion (only the shortest shown) and give rise to two characteristic doublets in the 1H NMR spectrum with shifts that are highly dependent on the N‐substituents, solvent and anion. The cationic complex is readily formed by the treatment of triazacyclohexanes with excess TiCl4 which often results in large crystals containing the Ti2Cl9 anion. Details are discussed in the article by R. D. Köhn et al. on p. 3217 ff.