Synthesis and Characterization of Hexahapto-Chromium Complexes of Single-Walled Carbon Nanotubes

Irina Kalinina, Elena Bekyarova, Santanu Sarkar, Mikhail E. Itkis, Sandip Niyogi, Neetu Jha, Qingxiao Wang, Xixiang Zhang, Yas Fadel Al-Hadeethi, Robert C. Haddon

Research output: Chapter in Book/Report/Conference proceedingChapter


This chapter employs purified pristine single-walled carbon nanotubes (SWNTs) and octadecylaminefunctionalized-SWNTs. These SWNTs are employed for investigate the potential of the SWNT sidewall to function as a hexahapto ligand for chromium (Cr), with in-depth characterization of the products using some of the techniques, such as thermogravimetric analysis (TGA), transmission electron microscopy (TEM), x-ray photoelectron spectroscopy (XPS). Purified electric arc (EA)-produced SWNTs (P2-SWNT) and octadecylaminefunctionalized SWNTs were obtained from Carbon Solutions, Inc. The TEM images show the removal of the Cr particles from the outer surface of the SWNT bundles in the SWNT-Cr complexes after decomplexation; Cr attachment to the surface of the as-prepared complexes (η6-SWNT)Cr(CO)3 and (η6-SWNT-CONH(CH2)17CH3)Cr(CO)3 is clearly evident. The positions of the bands in the Raman spectra of SWNTs are sensitive to doping and thus the chapter examines the effect of complexation of the Cr(CO)3 and Cr(η6-benzene) units on the position of the G and 2D bands in the (η6-SWNT)Cr(CO)3 and (η6-SWNT)Cr(η6-benzene) complexes.
Original languageEnglish (US)
Title of host publicationChemical Synthesis and Applications of Graphene and Carbon Materials
Number of pages28
ISBN (Print)9783527648160
StatePublished - Dec 16 2016


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