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Inclusion of Two PhP(O)(OH) 2 Guest Molecules into the Cavity of Macrocyclic Cavidand Cucurbit[8]uril
Authors:Elena V Chubarova  Denis G. Samsonenko  Maxim N. Sokolov  Olga A. Gerasko  Vladimir P. Fedin  Javier G. Platas
Affiliation:1. Siberian Branch of the Russian Academy of Sciences, Nikolaev Institute of Inorganic Chemistry, Academician Lavrentiev Avenue 3, Novosibirsk, 630090, Russia
2. University of La Laguna, 38200, Tenerife, Canary Islands, Spain
Abstract:A new inclusion compound which is a supramolecular adduct of cucurbit[8]uril with two guest molecules of phenylphosphonic acid, PhP(O)(OH)2, included into the cavity as ``two guests in host'' is reported. The guests match both size and hydrophilicity/hydrophobicity requirements. Two phenyl groups of molecules of PhP(O)(OH)2 are directed toward the center of the large hydrophobic cavity whereas the PO(OH)2 groups are outward-looking and bound with each hydrophilic portal of cucurbit[8]uril by a short hydrogen bond.
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