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Molecules 2007, 12(4), 716-722; doi:10.3390/12040716
Article

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

, , * ,  and
Institute of Applied Chemistry, Guizhou University, Guiyang, 550025, People’s Republic of China
* Author to whom correspondence should be addressed.
Received: 25 February 2007 / Revised: 19 March 2007 / Accepted: 19 March 2007 / Published: 5 April 2007
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Abstract

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.
Keywords: Dodecamethylcucurbit[6]uril; inclusion host-guest complex; crystal structure Dodecamethylcucurbit[6]uril; inclusion host-guest complex; crystal structure
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Lu, L.-B.; Zhang, Y.-Q.; Zhu, Q.-J.; Xue, S.-F.; Tao, Z. Synthesis and X-ray Structure of the Inclusion Complex of Dodecamethylcucurbit[6]uril with 1,4-Dihydroxybenzene. Molecules 2007, 12, 716-722.

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