Abstract
Three new lanthanide-titanium oxo clusters (LnTOCs), namely, Ti4Gd2, Ti13Gd2 and Ti14Gd4 were synthesized by reactions of different lanthanide salts with salicylic acid (H2sal) in different solvents. Crystallographic studies reveal that both Ti4Gd2 and Ti13Gd2 are composed by a oxo-centred triangular motif {Ti2Gd(μ3-O)}, while Ti14Gd4 has a heart-shaped heterometallic core {Ti12Gd2O13(OH)6}, which represents the second highest nuclearity LnTOC reported to date. In addition, these compounds exhibit a strong absorption in visible light region and a fast photocurrent response owing to the existence of salicylate ions.
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