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Tetra­methyl­guanidinium chloride

✍ Scribed by Fischer, Axel K. ;Jones, Peter G.


Publisher
International Union of Crystallography
Year
2002
Tongue
English
Weight
154 KB
Volume
58
Category
Article
ISSN
1600-5368

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✦ Synopsis


ÁCl À , the central C atom displays almost ideal trigonal planar geometry. Classical hydrogen bonds of the form N + ÐHÁ Á ÁCl À link the formula units into discrete centrosymmetric dimers.


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ÁCl À , is a phase-transfer catalyst. The geometry at the central C atom of the guanidinium cation, which lies on a twofold rotation axis, is almost ideal trigonal planar, with N-C-N angles of 119.8 (2) and 120.08 (11) . The chloride anion also lies on a twofold rotation axis.

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In the structure of the title compound, C 9 H 13 ClN 4 O, the guanidinium group is nearly coplanar with the 2-methoxyphenyl ring, C N having E geometry. The chloride ions are involved in intermolecular hydrogen bonds with the H atoms of the aminoguanidinium ion.

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In the title compound, [NH 2 C(N(CH 3 ) 2 ) 2 ] 3 [Sb 2 Br 9 ], the organic cations interact with the isolated [Sb 2 Br 9 ] 3À anions by way of N-HÁ Á ÁBr hydrogen bonds, leading to some deformations of the inorganic unit.