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Amphiphile Structures in the Solid State: Complex Cations with Lipophilic Substituents
Author(s) -
Harrowfield Jack M.,
Koutsantonis George A.,
Nealon Gareth L.,
Skelton Brian W.,
White Allan H.
Publication year - 2005
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200500085
Subject(s) - chemistry , alkyl , hydrogen bond , solid state , paramagnetism , amphiphile , bilayer , crystallography , crystal structure , diamagnetism , stereochemistry , molecule , organic chemistry , membrane , polymer , biochemistry , physics , quantum mechanics , magnetic field , copolymer
Structural characterisation of hexamine cage complexes, two containing diamagnetic Co III and one containing paramagnetic Cu II , to which both rather short (C 4 ) and relatively long (C 13 ) alkyl substituents have been attached, shows that while the longer “tail” introduces an anticipated bilayer form to the crystalline solid, even the shorter tail can be associated with a form of aggregation of lipophilic entities in the crystal. The short tail at least may also be involved in interactions with anions of a complex type. As surfactants, functionalised cage complexes contain a head group, which is a multi‐site hydrogen‐bonding entity, and which can thus provide a mechanism for further aggregation concomitant with that of any apolar functionality. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)