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https://hdl.handle.net/10316/110432| Title: | N,N',N''-Triphenyl-guanidinium 5-nitro-2,4-dioxo-1,2,3,4-tetra-hydro-pyrimidin-1-ide | Authors: | Pereira Silva, P. S. Domingos, S. R. Silva, M. Ramos Paixão, J. A. Beja, A. Matos |
Keywords: | single-crystal X-ray study; T = 293 K; mean (C–C) = 0.004 A°; R factor = 0.051; wR factor = 0.154; data-to-parameter ratio = 18.5 | Issue Date: | 17-May-2008 | Publisher: | International Union of Crystallography | Project: | POCI/FIS/58309/2004 | Serial title, monograph or event: | Acta Crystallographica Section E: Structure Reports Online | Volume: | 64 | Issue: | Pt 6 | Abstract: | In the title compound, C(19)H(18)N(3) (+.)C(4)H(2)N(3)O(4) (-), the dihedral angles between the phenyl rings and the plane defined by the central guanidinium fragment are in the range 41.3 (1)-66.6 (1)°. The pyrimidine ring of the anion is distorted towards a boat conformation and the nitro group is rotated 11.4 (2)° out of the uracil plane. Hydrogen bonds assemble the ions in infinite helical chains along the b axis. | URI: | https://hdl.handle.net/10316/110432 | ISSN: | 1600-5368 | DOI: | 10.1107/S1600536808014244 | Rights: | openAccess |
| Appears in Collections: | FCTUC Física - Artigos em Revistas Internacionais |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| NNNTriphenylguanidinium-5nitro24dioxo1234tetra-hydropyrimidin1ideActa-Crystallographica-Section-E-Structure-Reports-Online.pdf | 433 kB | Adobe PDF | View/Open |
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