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Cucurbit[10]uril

2005; American Chemical Society; Volume: 127; Issue: 48 Linguagem: Inglês

10.1021/ja056287n

1943-2984

Simin Liu, Peter Y. Zavalij, Lyle Isaacs,

Molecular Sensors and Ion Detection

Melamine diamine 1 is able to displace CB[5] from the CB[10].CB[5] complex resulting in CB[10].12 and precipitated CB[5].1. We were able to isolate free CB[10] by treatment of CB[10].1 with acetic anhydride followed by washing with MeOH, DMSO, and water. The spacious cavity of CB[10] is able to complex large guests, including a cationic calix[4]arene derivative in its 1,3-alternate form (CB[10].1,3-alt-3). The addition of adamantane carboxylic acid (4) to CB[10].3 triggers a conformational change during the formation of termolecular complex CB[10].cone-3.4.