Giant micelles of organoplatinum(II) gemini amphiphiles.
Organoplatinum(II) gemini amphiphiles with two different chain lengths are synthesized and characterized. Self-assembly at the air-water interface is investigated as a function of chain length and reduction in surface area by using Langmuir-trough techniques. The Langmuir-trough experiments lead to a conjecture that surface aggregates may be the adsorbing units. Atomic force microscopy on the transferred Langmuir-Schaefer films reveals spontaneous formation of wormlike micellar aggregates. A shear-induced transition and alignment are proposed for the observed effects.
Maran
Umamageswaran
U
Department of Chemistry, University of Utah, 315 South 1400 East, room 2020, Salt Lake City, Utah 84112, USA. stang@chem.utah.edu
Conley
Hiram
H
Frank
Markus
M
Arif
Atta M
AM
Orendt
Anita M
AM
Britt
David
D
Hlady
Vladimir
V
Davis
Robert
R
Stang
Peter J
PJ
D000388:Air; D001703:Biophysics / Q000379:methods; D002625:Chemistry, Organic / Q000379:methods; D018360:Crystallography, X-Ray; D008823:Micelles; D018625:Microscopy, Atomic Force; D008956:Models, Chemical; D008958:Models, Molecular; D008968:Molecular Conformation; D015394:Molecular Structure; D010984:Platinum / Q000737:chemistry*; D017671:Platinum Compounds / Q000737:chemistry*; D011809:Quinones / Q000737:chemistry; D013499:Surface Properties; D014867:Water / Q000737:chemistry
D008823:Micelles; D017671:Platinum Compounds; D011809:Quinones; D014867:Water; D010984:Platinum