The reaction of iron carboxylates with titanium alkoxides. Isolation and structural characterisation of [Ti6(μ3-O)6(O2CPh)6(OCH2C(CH3)3)6]

Two new hexanuclear titanium oxo cluster types and their structural connection to known clusters

“…The Ti 3 O group in 1 is quite unsymmetrical, the Ti1-O1 distance being much longer than Ti2-O1 and Ti3-O1 and, correspondingly, Ti2-O1-Ti3* being much larger than Ti2-O1-Ti1 and Ti3-O1-Ti1. This distortion of the Ti 3 O group is also observed in the Ti 6 O 4 (OR) 8 H NMR spectrum for the OiPr groups and the CH protons of the cyclobutyl groups. The inequivalence of the OiPr groups indicates that either the inversion symmetry is lifted in solution or free rotation of the OiPr groups is restricted.…”

Secondary building units, nets and bonding in the chemistry of metal–organic frameworks

“…52). 146 Carboxylates bridge the Ti corners, and alkoxide ligands cap the Ti atoms. Similar to the Ti hexagon above, with Sn atoms (Fig.…”

Synthesis of para‐Amino Benzoic Acid–TiO2 Hybrid Nanostructures of Controlled Functionality by an Aqueous One‐Step Process

“…The difference in the formulation of 1 and 2 (presence of oxido ligands) is attributed to the immediate precipitation of 1 from the medium; thus, the hydrolysis reaction is avoided as a result of an esterification reaction between the acid and the alcohol generated by the substitution reaction. Previous similar species such as [Ti(OEt) 3 (O 2 CCH 2 -NH 2 )] 2 , [17] [Ti 6 (µ 3 -O) 6 (OCH 2 C(CH 3 ) 3 ) 6 (O 2 CR) 6 ] (R = H, [18] C 6 H 5 [19] ) and [Ti 6 (µ 3 -O) 6 (OEt) 6 (O 2 CC 6 H 4 OC 6 H 5 ) 6 ] [20] were structurally identified.…”