Volume 47 - Issue 1 - 107 - 114

Evaluating the Reactivity Superiority of Two Different Single-Walled Carbon Nanotube Anions Using An Anhydride Electrophile

İki Farklı Tek Duvarlı Karbon Nanotüp Anyonunun Reaktivite Üstünlüğünün Bir Anhidrit Elektrofil Kullanarak Değerlendirilmesi


Reductive chemistries have widely been used to functionalize single-walled carbon nanotubes (SWCNTs). However, the reactivity of negatively charged SWCNTs (NC-SWCNTs), prepared by different reductive chemistries, to the same electrophilic reagent has not been evaluated. Here in, the first example of the reactivity comparison of two different NC-SWCNTs towards 3-nitrophthalic anhydride is presented, and two novel functionalized SWCNTs are synthesized and characterized. The NC-SWCNTs, that are denoted as [(nBu―SWCNTn)-•Lin+] and [SWCNTn-•Lin+], are prepared via n-butyl lithium and lithium naphthalenide addition, respectively, and are reacted by 3-nitrophthalic anhydride under dry conditions. The resulting functionalized SWCNTs are characterized by Raman, UV-vis-NIR, TGA-MS, XPS, and TEM. The reactivity of [(nBu―SWCNTn)-•Lin+] towards electrophilic 3-nitrophthalic anhydride is found to be higher than [SWCNTn-•Lin+]. This isprobably due to the high nucleophilic character of [(nBu―SWCNTn)-•Lin+] which bears lone pair electrons and electron- donating butyl groups.



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