Synthesis and X-ray Structure of the Inclusion Complex of Dodecamethylcucurbit[6]uril with 1,4-Dihydroxybenzene

Molecules

Li-Bin Lu²  Yun-Qian Zhang²  Qian-Jiang Zhu¹  Sai-Feng Xue² 

[1] id="af1-molecules-12-00716">Institute of Applied Chemistry, Guizhou University, Guiyang, 550025, People’s Republic of Chi

关键词: Dodecamethylcucurbit[6]uril;    inclusion host-guest complex;    crystal structure;   

DOI  :  10.3390/12040716

来源: mdpi

【 摘 要 】

The synthesis, and X-ray crystal structure of the inclusion host-guest complex of dodecamethylcucurbit[6]uril (DDMeQ[6]) with 1,4-dihydroxybenzene (DHOBEN) are reported. The complex crystallizes in the space group P21/c (No.14) with a =12.2847(4), b = 12.6895(4), c = 15.1310(4) Å, α = 74.6960(10), β = 71.4090(10), γ = 86.5090(10)° and Z = 1. A novel approach to dodecamethylcucurbit[6]uril synthesis is also described. To separate dodecamethylcucurbit[6]uril, 1,4-dihydroxybenzene is used as a guest molecule for crystallization of the fully methyl-substituted cucurbituril. The driving force for the self-assembled inclusion host-guest complex can be attributed to not only the cavity interaction of dodecamethylcucurbit[6]uril (host), but also to the hydrogen bonding between the carbonyl oxygen at the portals of the host and the hydroxy groups of the guest.

【 授权许可】

Unknown   
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