English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

Magic angle (54.7°) gradient and minimal surfaces in quadruple micellar helices

MPS-Authors

Boettcher,  Christoph
Fritz Haber Institute, Max Planck Society;
Institut fur Organische Chemie der Freien Universitat Berlin;

/persons/resource/persons266115

Winkler,  Hanspeter
Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22284

Zeitler,  Elmar
Fritz Haber Institute, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Köning, J., Boettcher, C., Winkler, H., Zeitler, E., Talmon, Y., & Fuhrhop, J.-H. (1993). Magic angle (54.7°) gradient and minimal surfaces in quadruple micellar helices. Journal of the American Chemical Society, 115(2), 693-700. doi:10.1021/ja00055a045.


Cite as: https://hdl.handle.net/21.11116/0000-000A-CF69-8
Abstract
The first self-organized quadruple helices consisting of nonpolymeric material have been obtained from N-octyl-and N-dodecyl-ᴅ-gluconamides in water. They have been characterized by electron microscopy, image analysis, and computer modelling. The pitch of the helices is equal to (2π x molecular bilayer diameter); their gradient conforms with the magic angle (54.7°). The quadruple helices rearrange in aqueous gels to a single helix made of circular 4-fold layers of molecules, a pitch of 7.4 nm, and a gradient of 82 ± 3°. This quadruple layer may already contain head-to-tail oriented molecules, which are exclusively found in the final crystal sheets. The process of crystallization, from highly curved micellar fibers to planar crystal sheets, proceeds on minimal sufaces.