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Hydrogen-bonded linear thiourea hexads in tetra-n-butylammonium terephthalate inclusion compounds


Reference:

Babb, J. E. V., Burke, N. J., Burrows, A. D., Mahon, M. F. and Slade, D. M. K., 2003. Hydrogen-bonded linear thiourea hexads in tetra-n-butylammonium terephthalate inclusion compounds. CrystEngComm, 5, pp. 226-230.

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Abstract

The co-crystallisation of thiourea (tu) with tetra-n-butylammonium terephthalate gave either [NBu4](2)[C6H4(CO2)(2)-1,4].6tu.2H(2)O 1 or [NBu4](6)[C6H4(CO2)(2-)1,4](3).6tu.4H(2)O 2, depending on the solvent and stoichiometry employed. Both compounds have structures containing hydrogen-bonded linear thiourea hexads, though these hexads are connected via additional hydrogen bonds into a three-dimensional network in 1 and a two-dimensional sheet structure in 2. The compound [NBu4]Br.2tu 3, resulting from an impurity in one of the starting materials, has also been isolated and structurally characterised. An analysis of the Cambridge Structural Database has demonstrated that the flattened conformations observed for the NBu4+ cations in these compounds are not atypical.

Details

Item Type Articles
CreatorsBabb, J. E. V., Burke, N. J., Burrows, A. D., Mahon, M. F. and Slade, D. M. K.
DOI10.1039/b304010k
DepartmentsFaculty of Science > Chemistry
RefereedYes
StatusPublished
ID Code5080
Additional InformationID number: ISI:000183552200001

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