NDLI: (Co-)solvent selection for single-wall carbon nanotubes: best solvents, acids, superacids and guest

Content Provider	Royal Society of Chemistry (RSC)
Author	Castellano, Gloria Torrens, Francisco
Copyright Year	2011
Abstract	Analysis of 1-octanol–water, cyclohexane–water and chloroform (CHCl3)–water partition coefficients Po–ch–cf allows calculation of molecular lipophilicity patterns, which show that for a given atom log Po–ch–cf is sensitive to the presence of functional groups. Program CDHI does not properly differentiate between non-equivalent atoms. The most abundant single-wall carbon nanotube (SWNT), (10,10), presents a relatively small aqueous solubility and large elementary polarizability, Po–ch–cf and kinetic stability. The SWNT solubility is studied in various solvents, finding a class of non-hydrogen-bonding Lewis bases with good solubility. Solvents group into three classes. The SWNTs in some organic solvents are cationic while in water/Triton X mixture are anionic. Categorized solubility is semiquantitatively correlated with solvent parameters. The coefficient of term β is positive while the ones of ε and V negative. The electron affinity of D-glucopyranoses (D-Glcpn) suggests the formation of colloids of anionic SWNTs in water. Dipole moment for D-Glcpn-linear increases with n until four in agreement with 18-fold helix. The Inz− and SWNT− are proposed to form inclusion complexes with cyclodextrin (CD) and amylose (Amy). Starch, D-Glcp, CD and Amy are proposed as SWNT co-solvents. Guests–hosts are unperturbed. A central channel expansion is suggested.
Starting Page	2494
Ending Page	2510
Page Count	17
File Format	HTM / HTML PDF
ISSN	20403364
Volume Number	3
Issue Number	6
Journal	Nanoscale
DOI	10.1039/c0nr00922a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Chloroform Polarizability Electron affinity Partition coefficient Amy Carbon nanotube Cyclodextrin Amylose Lewis Solvent Ford Modular engine Amy Pond Po
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology

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