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Single‐Walled Carbon Nanotubes Under the Influence of Dynamic Coordination and Supramolecular Chemistry
Author(s) -
Chichak Kelly S.,
Star Alexander,
Altoé M. Virginia P.,
Stoddart J. Fraser
Publication year - 2005
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200400070
Subject(s) - carbon nanotube , supramolecular chemistry , aqueous solution , materials science , solubility , absorption spectroscopy , non covalent interactions , nanotube , chemistry , chemical engineering , photochemistry , nanotechnology , combinatorial chemistry , organic chemistry , molecule , hydrogen bond , physics , quantum mechanics , engineering
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.