Nanoscale 1,3,5,7-tetrasubstituted adamantanes and p-substituted tetraphenyl-methanes for AFM applications.
[structure: see text] Tetrahedrally shaped nanoscale molecules 18-20 were synthesized from the corresponding tetraiodide by a series of Sonogashira coupling reactions. Three of the sulfur-containing termini are intended for eventual binding to a gold-coated conventional AFM tip, while the fourth terminus scans the sample. AFM images of 19 demonstrate that the molecule is sufficiently large and rigid to be imaged by a conventional AFM tip.
Li
Quan
Q
Department of Chemistry, University of Oregon, Eugene, Oregon 97403-1253, USA.
Rukavishnikov
Aleksey V
AV
Petukhov
Pavel A
PA
Zaikova
Tatiana O
TO
Keana
John F W
JF
D000218:Adamantane / Q000737:chemistry*; D008697:Methane / Q000031:analogs & derivatives* / Q000737:chemistry; D018625:Microscopy, Atomic Force / Q000379:methods*; D036103:Nanotechnology
D008697:Methane; D000218:Adamantane