Single-walled carbon nanotubes under the influence of dynamic coordination and supramolecular chemistry.
A dynamic coordinative-directed solubilization of single-walled carbon nanotubes (SWNTs) in aqueous solutions has been achieved through a combination of a Zn(II) metalloporphyrin complex and a cis-protected Pd(II) complex, which are believed to form charged acyclic and/or cyclic adducts on or around the side walls of SWNTs. The solubilization of SWNTs in aqueous solution only occurs when these acyclic and/or cyclic complexes are allowed to enter simultaneously into a self-assembly process with SWNTs under mild conditions. The aqueous solubility properties that these dynamic complexes confer upon SWNTs are believed to involve noncovalent bonding interactions between the two entities. They have been probed in solution using ultraviolet and visible absorption spectroscopy and in thin films using high-resolution transmission electron microscopy. The supramolecular electronic effects that the individual components of their acyclic and/or cyclic complexes impart upon a single semiconducting SWNT have been probed within a nanotube field-effect transistor device.
Chichak
Kelly S
KS
The California NanoSystems Institute, and Department of Chemistry and Biochemistry, University of California, Los Angeles, 405 Hilgard Avenue, Los Angeles, CA 90095-1569, USA.
Star
Alexander
A
Altoé
M Virginia P
MV
Stoddart
J Fraser
JF
D000042:Absorption; D000327:Adsorption; D002623:Chemistry Techniques, Analytical / Q000379:methods; D004563:Electrochemistry; D018625:Microscopy, Atomic Force; D046529:Microscopy, Electron, Transmission; D008968:Molecular Conformation; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods*; D043942:Nanotubes / Q000737:chemistry; D037742:Nanotubes, Carbon / Q000737:chemistry*; D013053:Spectrophotometry; D014173:Transistors, Electronic
D037742:Nanotubes, Carbon