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Synthesis and Structure of a Series of Ti 6 ‐oxo Clusters Functionalized by in situ Esterified Dicarboxylate Ligands
Author(s) -
Gao MeiYan,
Sun Yayong,
Wang Fei,
Zhang Jian,
Zhang Lei
Publication year - 2021
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.202000664
Subject(s) - chemistry , catechol , in situ , reaction conditions , titanium , crystallography , rare earth , metal , stereochemistry , catalysis , organic chemistry , mineralogy
Main observation and conclusion In this work, a series of titanium‐oxo clusters functionalized by in situ formed esterified ligands, Ti 6 ( μ 2 ‐O) 2 ( μ 3 ‐O) 2 (O i Pr) 10 (O 3 P‐Phen) 2 (THA i Pr) 2 (PTC‐267; THA = cis ‐1,2,3,6‐tetrahydrophthalic anhydride), Ti 6 ( μ 2 ‐O) 2 ( μ 3 ‐O) 2 (O i Pr) 10 (O 3 P‐Phen) 2 (PDA i Pr) 2 (PTC‐268 and PTC‐269; PDA = 3, 4‐pyridinedicarboxylic acid) and Ti 6 ( μ 2 ‐O) 2 ( μ 4 ‐O) 2 (O i Pr) 10 (cat) 2 (THA i Pr) 2 (PTC‐270; cat = catechol), were successfully synthesized by one‐step solvothermal reactions. PTC‐267, PTC‐268 and PTC‐269 possess a similar {Ti 6 ( μ 3 ‐O) 2 ( μ 2 ‐O) 2 } core, while the core of PTC‐270 is composed of a unique {Ti 6 ( μ 4 ‐O) 2 ( μ 2 ‐O) 2 } unit. PTC‐268 and PTC‐269 occur as geometric isomers with each other. Furthermore, these complexes offer rare examples of dicarboxylate‐modified polyoxo‐titanium clusters (PTCs) with ester groups. This work not only offers an opportunity to gain an insight into the formation mechanism of PTCs, but also contributes to the exploration of optimal synthetic conditions for high‐nuclearity PTCs.