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Redetermination of 4-(dimethyl-amino)-pyridinium tribromide.

ABSTRACT: In the title salt, C(7)H(11)N(2) (+)·Br(3) (-), the essentially planar cation (r.m.s. deviation = 0.006?Å) forms an N-H?Br hydrogen bond to one of the Br atoms of the almost linear anion [Br-Br-Br = 179.31?(2)°]. The crystal studied was found to be a racemic twin. The whole-mol-ecule disorder of the cation and anion about a twofold rotation axis described earlier [Ng (2009). Acta Cryst. E65, o1276] is an artifact of halving one of the axes of the ortho-rhom-bic unit cell.

SUBMITTER: Ng SW

PROVIDER: S-EPMC3008028 | biostudies-literature | 2010 Aug

REPOSITORIES: biostudies-literature

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Redetermination of 4-(dimethyl-amino)-pyridinium tribromide.

Ng Seik Weng SW

Acta crystallographica. Section E, Structure reports online 20100811 Pt 9

In the title salt, C(7)H(11)N(2) (+)·Br(3) (-), the essentially planar cation (r.m.s. deviation = 0.006 Å) forms an N-H⋯Br hydrogen bond to one of the Br atoms of the almost linear anion [Br-Br-Br = 179.31 (2)°]. The crystal studied was found to be a racemic twin. The whole-mol-ecule disorder of the cation and anion about a twofold rotation axis described earlier [Ng (2009). Acta Cryst. E65, o1276] is an artifact of halving one of the axes of the ortho-rhom-bic unit cell. ...[more]

PMID: 21588594

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