The title compound, C7H15N3P+·BF4 - or [PTA-Me][BF4], is the N-methyl-ated derivative of the well known water-soluble amino-phosphine 1,3,5-triaza-7-phosphaadamantane (PTA). The asymmetric unit consists of a cage-like cation [PTA-Me]+ and a disordered tetra-fluoro-borate anion; two F atoms are disordered equally over two sites. A network of weak inter-molecular C - H⋯F hydrogen bonds results in a three-dimensional supra-molecular assembly.
CITATION STYLE
Smoleński, P., Kirillov, A. M., Da Silva, M. F. C. G., & Pombeiro, A. J. L. (2008). 1-Methyl-1-azonia-3,5-diaza-7-phosphatricyclo-[3.3.1.13,7]decane tetrafluoroborate. Acta Crystallographica Section E: Structure Reports Online, 64(3). https://doi.org/10.1107/S1600536808003401
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