Journal
INORGANICA CHIMICA ACTA
Volume 487, Issue -, Pages 81-91Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.ica.2018.11.043
Keywords
Lanthanide; 2,6-Dipicolinic acid; Photoluminescence
Categories
Funding
- DST, Government of India
- SERB [EMR/2016/004021]
- DST-INSPIRE
- DST, Govt. of India
- High-Impact Research grant of IIT Delhi
- DST-FIST grant of department of physics IIT Delhi
- [DST: SR/FST/CSII-07/2014]
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A new series of six isostructural molecular solids of the composition [{Al(H2O)(6)}{HLn(pda)(3)}]center dot 10H(2)O where Ln = Sm, Eu, Gd, Tb, Dy and Yb have been synthesized and structurally characterised. All the solids are built of three major building blocks: the lanthanide dipicolinate anion, {Ln(pda)(3)}(3-), the counter cation, {Al(H2O)(6)}(3+) and a hexameric water cluster in chair form. The cations and the anions supramolecularly aggregate forming a 2D H-bonded sheet; the sheets are further stabilised through hexameric water clusters in chair form and water molecules. The crystals containing Sm, Eu, Tb and Dy showed characteristic emission of lanthanide ions.
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