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International Union of Crystallography, Acta Crystallographica Section E: Structure Reports Online, 3(64), p. o556-o556, 2008

DOI: 10.1107/s1600536808003401

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1-Methyl-1-azonia-3,5-diaza-7-phosphatricyclo­[3.3.1.13,7]decane tetra­fluoro­borate

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

The title compound, C7H15N3P+·BF4 − or [PTA-Me][BF4], is the N-methyl­ated derivative of the well known water-soluble amino­phosphine 1,3,5-triaza-7-phosphaadamantane (PTA). The asymmetric unit consists of a cage-like cation [PTA-Me]+ and a disordered tetra­fluoro­borate anion; two F atoms are disordered equally over two sites. A network of weak inter­molecular C—H⋯F hydrogen bonds results in a three-dimensional supra­molecular assembly.