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Trimethyl­ammonium tetra­fluoro­borate at 100 K

✍ Scribed by Gotoh, Kazuma ;Ishikawa, Rie ;Ishida, Hiroyuki


Publisher
International Union of Crystallography
Year
2005
Tongue
English
Weight
189 KB
Volume
61
Category
Article
ISSN
1600-5368

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(Bromo­meth­yl)trimethyl­ammonium tetra­
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In the title compound, C 4 H 11 BrN + ÁBF 4 À , both ions lie on crystallographic mirror planes, and the compound is isomorphous with the chloromethyl analog. The C-Br distance is 1.927 (2) A ˚.

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The title compound, C 3 H 10 N + ÁBr À , is composed of hydrogenbonded (CH 3 ) 3 NH + and Br À ions. The N, Br and CH of one methyl substituent lie on a mirror plane that relates the two remaining CH 3 groups by symmetry.

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In the title compound, C 16 H 36 N + ÁC 24 BF 20 À , the geometric parameters do not show any unusual values. The four n-butyl chains adopt an all-trans conformation.

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Single-crystal X-ray study T = 110 K Mean '(C±C) = 0.003 A Ê R factor = 0.048 wR factor = 0.130 Data-to-parameter ratio = 21.9 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

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✍ Gainsford, Graeme J. ;Kemmitt, Tim 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 91 KB

The crystal structure of the title compound, C 3 H 10 N + ÁI À , originally determined by Sheldrick & Sheldrick [Acta Cryst. (1970), B26, 1334-1338], has been redetermined at 93 K. Both ions lie on a mirror plane. They form N-HÁ Á ÁI hydrogenbonded units in the crystal structure.