Abstract
Abstract A series of lanthanide complexes, [LnL1L21/2(H2O)2]n [Ln = La(1), Sm(2), Gd(3), Eu(4), H2L1 = 2,4-bis(4-methylbenzoyl)isophthalic acid and H2L2 = 2,5-bis(4-methylbenzoyl)terephthalic acid] have been prepared under hydrothermal conditions and characterized by PXRD, IR, elemental analysis and single crystal X-ray diffraction. Complexes 1–4 are isostructural and comprise paddlewheel dinuclear lanthanide secondary building units linked by four carboxylic groups. L1 ligands link the dinuclear lanthanide building blocks to form one-dimensional double-stranded looplike chains. The chains are further connected together to form two-dimensional layers by L2. Furthermore, the luminescent properties of 2 and 4 were also studied.
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