title: N-n-alkyl N,N-dimethylammonioacetic acid bromides: the first complete series of crystal and molecular structure determinations of an amphiphilic compound with alkyl chain lengths n = 1,..., 16
abstract: The molecular and crystal structures of 16 N-n-alkyl N,N-dimethylammonioacetic acid bromides with chain lengths between n = 1 and n = 16 have been determined. All compounds from n = 5 to n = 16 form bilayers with interdigitated chains. The even-numbered chains display the chain packing type M2(II). The chain packing of the odd-numbered chain compounds is less regular. The head groups of all compounds are connected via electrostatic N+...Br- interactions, and by OH...Br- hydrogen bonds. The compounds with short chains are packed in different ways. Their molecular conformation depends on the crystal packing.
authors.affiliation: Federal Institute for Material Research and Testing (BAM), Berlin, Germany. rainer.rudert@bam.de
authors.initials: R
authors.lastname: Rudert
authors.initials: B
authors.lastname: Schulz
authors.initials: G
authors.lastname: Reck
authors.initials: D
authors.lastname: Vollhardt
authors.initials: J
authors.lastname: Kriwanek