A folded [2 x 2] metallo-supramolecular grid from a bis-tridentate (1,2,3-triazol-4-yl)-picolinamide (tzpa) ligand

作者：Barry Dawn E; Hawes Chris S; Byrne Joseph P; Poulsen Bjorn la Cour; Ruether Manuel; O%apos; Brien John E; Gunnlaugsson Thorfinnur

来源：Dalton Transactions, 2017, 46(19): 6464-6472.

DOI：10.1039/c7dt01533j

A flexible ditopic ligand 1 containing two N, N, O-tridentate (1,2,3-triazol-4-yl)-picolinamide chelating pockets is reported and the formation of multimetallic architectures is explored in the solid and the solution phase. The self-assembled Zn-II complex [Zn-4(1)(4)](ClO4)(8) exhibited a folded [2 x 2] square grid supramolecular architecture that selectively assembled in MeCN solution as shown using various spectroscopic techniques. The closely related Fe-II complex shows equivalent behaviour in the solid state, while a discrete dinuclear species [Cu-2(NO3)(4)1]center dot 5MeCN was the sole product observed in the solid state from the reaction between 1 and Cu-II under similar conditions.

• 出版日期2017-5-21