naa a22 4500 51073507X CHVBK 20180411083006.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.1007/s12039-013-0380-3 doi (NATIONALLICENCE)springer-10.1007/s12039-013-0380-3 Synthesis of dark brown single-walled carbon nanotubes and their characterization by HSQC-NMR [Elektronische Daten] [RAHEBEH AMIRI, HAMIDREZA RAFIEE, ASHKAN GOLSHANI, FIROOZEH CHALABIAN] We report here a simple and effective approach to the covalent attachment of single-walled carbon nanotubes (SWCNTs) and azo compounds. The functionalized SWCNTs prepared (through a radical mechanism) have been used for a diazonium coupling reaction. The results showed that the chemical method used has improved the processability and solubility of the carbon nanotubes. The dark brown SWCNTs obtained which can produce a yellow colour in organic solvents were characterized by different spectroscopic analyses. Heteronuclear single quantum coherence spectra (13C-1H HSQC) have been used to detect the carbon nanotube allylic protons. The morphology of the main product has been shown by scanning electron microscopy (SEM). Graphical Abstract Dark brown SWCNTs have been prepared through a covalent attachment of diazo compound to the surfaces of functionalized single-walled carbon nanotubes. The structure of the products have been assigned by HSQC-NMR spectroscopy. Indian Academy of Sciences, 2013 Carbon nanotubes nationallicence heteronuclear single quantum coherence spectra nationallicence covalent attachment nationallicence azocompound nationallicence AMIRI RAHEBEH Department of Chemistry, Central Tehran Branch, Islamic Azad University, 1465613111, Tehran, Iran aut RAFIEE HAMIDREZA Department of Chemistry, Central Tehran Branch, Islamic Azad University, 1465613111, Tehran, Iran aut GOLSHANI ASHKAN Department of Biology, Carleton University, K1S 5B6, Ottawa, Ontario, Canada aut CHALABIAN FIROOZEH Department of Biology, Islamic Azad University, Tehran North Campus, 1667934783, Tehran, Iran aut Journal of Chemical Sciences Springer-Verlag 125/2(2013-03-01), 431-436 0974-3626 125:2<431 2013 125 12039 https://doi.org/10.1007/s12039-013-0380-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12039-013-0380-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- AMIRI RAHEBEH Department of Chemistry, Central Tehran Branch, Islamic Azad University, 1465613111, Tehran, Iran aut NATIONALLICENCE 700 1- RAFIEE HAMIDREZA Department of Chemistry, Central Tehran Branch, Islamic Azad University, 1465613111, Tehran, Iran aut NATIONALLICENCE 700 1- GOLSHANI ASHKAN Department of Biology, Carleton University, K1S 5B6, Ottawa, Ontario, Canada aut NATIONALLICENCE 700 1- CHALABIAN FIROOZEH Department of Biology, Islamic Azad University, Tehran North Campus, 1667934783, Tehran, Iran aut NATIONALLICENCE 773 0- Journal of Chemical Sciences Springer-Verlag 125/2(2013-03-01), 431-436 0974-3626 125:2<431 2013 125 12039 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer