ISSN:
1434-193X
Keywords:
Arenes
;
Ladder
;
Molecular devices
;
Electron transport
;
Scanning tunnelling microscopy
;
Chemistry
;
General Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
PAHs (molecular landers), 17.7 to 30 Å long, devised for the study of electron transport along a single molecular wire in an STM tip-molecule-electrode experiment, have been obtained by Diels-Alder cycloadditions of benzadiyne to two cyclopentadienone precursors. They comprise a polyaromatic molecular board with a terminal fluoranthene group for chemisorption (and electrical contact) on a metallic diatomic terrace, and 4 to 8 3,5-di-tert-butylphenyl spacers. As a result of steric crowding, these spacers are held in such a conformation that the phenyl rings are nearly perpendicular to the main board plane and maintain the molecular wire 6.8 Å above the metallic surface.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
