The complexation of L-lactic acid by two isomeric diphosphonate cavitands was studied, both in solution and in the solid state. 1H and 31P NMR experiments and X-ray diffraction analysis on single crystals evidenced the formation of a supramolecular host–guest adduct with both synthetic receptors, driven by a combination of H-bonding and C–H⋯π interactions.
Diphosphonate cavitands as molecular cups forl-lactic acid / Barboza, T.; Pinalli, Roberta; Massera, Chiara; Dalcanale, Enrico. - In: CRYSTENGCOMM. - ISSN 1466-8033. - 18:26(2016), pp. 4958-4963. [10.1039/C6CE00270F]