AI Article Synopsis
- Treatments with lanthanide nitrates or perchlorates and a specific dicarboxylic acid led to the formation of nanoscale, porous molecular clusters called adamantanoids.
- These clusters exhibit a symmetrical structure due to the combination of the symmetrical bridging ligands and lanthanide ions.
- The self-assembly process is guided by hydrogen bonds between hydroxyl groups and carboxylate oxygens, resulting in 3D polycages with unique open channels.
Article Abstract
Treatments of lanthanide nitrate or perchlorate and C2-symmetric 2,2'-hydroxy-1,1'-binaphthalene-6,6'-dicarboxylic acid (6,6'-H2BDA) led to diastereoselective self-assembly of nanoscale, porous molecular adamantanoids [Ln4(BDA)6(H2O)12]*12DMF (Ln = Gd, La, 1a,b). These adamantanoid clusters possess perfect T symmetry as a result of the C2-symmetric nature of BDA bridging ligands and C3-symmetric nature of lanthanide ions. Face-to-face intercluster hydrogen bonds formed between 2,2'-dihydroxyl groups of BDA ligands and carboxylate oxygen atoms direct the assembly of 3D polycages based on chiral molecular adamantanoid building blocks which possess two different types of open channels.
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