Functionalization of Carboxylated Multi-Wall Nanotubes with Derivatives ofN1-(11H-Indeno[1,2-b]quinoxalin-11-ylidene)benzene-1,4-diamine

Javad Azizian,Mahdieh Entezari,Hossein Anaraki-Ardakani,Shahab Zomorodbakhsh

doi:10.1155/2013/917970

Abstract

Quinoxaline derivatives are compounds with pharmaceutical applications. In this study, derivatives ofN1-(11H-indeno[1,2-b]quinoxalin-11-ylidene)benzene-1,4-diamine were synthesized and attached to carboxylated multi-wall nanotubes (MWNT–COOH). Functionalized carbon nanotubes were characterized by scanning electron microscopy (SEM) to study the shape of structures, transmission electron microscopy (TEM), fast Fourier transform infrared (FT-IR), Raman spectroscopy, and elemental analysis.

Highlights

Carbon nanotubes (CNTs) have unique properties that make them attractive for different engineering applications and many other elds [1]
Because of their chemical inertness, carbon nanotubes have to be functionalized in order to acquire additional physicochemical properties [3]. ese groups, which are chemically attached to the tubes, are mostly represented by –COOH groups, less by –C=O, and –OH groups [4,5,6]
Amidation can be done by rst substituting a hydroxyl (–OH) group in a carboxylic (–COOH) group on chlorine by treatment in oxalyl chloride or SOCl2 with the following addition of a long-chain molecule of octadecyl amine [7, 8]. Compounds such as quinoxaline derivatives are an important class of benzoheterocycles which has received much attention in recent years owing to their both biological properties and pharmaceutical applications. ese derivatives are well known to antimicrobial [9], anticancer [10], antimalarial [11], antiin ammatory [12], antinociceptive [13], antitubercular [14], anthelmintic [15], antidiabetic [16], and antiepileptic [17] properties

Summary

Introduction

Carbon nanotubes (CNTs) have unique properties that make them attractive for different engineering applications and many other elds [1]. Amidation can be done by rst substituting a hydroxyl (–OH) group in a carboxylic (–COOH) group on chlorine by treatment in oxalyl chloride or SOCl2 with the following addition of a long-chain molecule of octadecyl amine [7, 8]. Compounds such as quinoxaline derivatives are an important class of benzoheterocycles which has received much attention in recent years owing to their both biological properties and pharmaceutical applications.

Experimental

Results and Discussion

Conclusions