Abstract
Two three-dimensional copper iodide cluster based lanthanide organic frameworks [Ln2Cu4I4(NA)6(DMF)2]n (Ln = Tb (1) and Dy (2), HNA = nicotinic acid) were successfully obtained and characterized. Compounds 1 and 2 are both consist of two blocks: one-dimensional (1D) lanthanide chain and [Cu4I4] cluster. Amongst them, compound 1 can be used as a luminescent sensor, exhibiting fast and highly sensitive to pyridine with the lowest detection limit of 1.62 × 10−5 M. In addition, magnetic studies reveal slow magnetic relaxation behaviors were clearly observed in compound 2. These results demonstrate that lanthanide organic frameworks have promising application prospect in the field of luminescent recognition and molecular magnet.
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