Addition and cycloaddition reactions of the nucleophilic oxo and sulfido complexes [tmtaa]Ti:X (X = O, S; tmtaa = dianion of 7,16-dihydro-6,8,15,17-tetramethyldibenzo[b,i][1,4,8,11]tetraazacyclotetradecine)

Structure, defects, and impurities at the rutile TiO2(011)-(2×1) surface: A scanning tunneling microscopy study

“…They are a key structural element of V 2 O 5 [14][15][16], and have been observed on V 2 O 3 [17,18], Cr 2 O 3 (0 0 0 1) [19], and, more recently, on Fe 2 O 3 (0 0 0 1) surfaces [20]. Ti@O species exist in metallorganic compounds and silicates [21][22][23][24], but they are not very common. They have been invoked to reside on the step edges of nanocrystalline TiO 2 materials, however [25].…”

Potent Reactivity in Solubilised Oxo‐Titanium Polymers

“…The formation of 4 shows that deconstruction of the chain polymeric system can occur after solubilisation in aldehyde solution, the process of which is unknown at this stage. However, it has been shown that terminal Ti–oxo ligands are capable of nucleophilic attack on the carbonyl carbon atom of activated ketones to give cycloaddition products 6a. A similar but reversible cycloaddition with aldehydes may be occurring during the solubilisation of the present [TiO(salen)] n polymers.…”

Activation of SO2 and CO2 by Trivalent Uranium Leading to Sulfite/Dithionite and Carbonate/Oxalate Complexes

“…4 In 1992, Haggerty et al. published the formation of a terminal sulfite from a titanium oxo complex with gaseous SO 2 5. This reaction is, in fact, very reminiscent to that of [( Ar, t Bu N) 3 Ti(O)] − with CO 2 reported by Cummins and co‐workers 6.…”