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Publication Type : Journal Article
Publisher : Rasayan Journal of Chemistry
Source : Rasayan Journal of Chemistry, 2021, 2021(Special Issue), pp. 118–125, 2021
Url : https://rasayanjournal.co.in/admin/php/upload/3422_pdf.pdf
Campus : Coimbatore
School : School of Physical Sciences
Year : 2021
Abstract : 5, 10, 15, 20 meso tetra(4-aminophenyl) porphyrinato nickel (II) complex (Ni-TAP) was connected covalently with a single-walled carbon nanotube (SWCNT). The Infrared (IR) spectrum of SWCNT-NiTAP nanohybrid conveys the shifting of C=O stretching frequency from 1714 cm-1 to 1695 cm-1 which substantiates the covalent bond connection of porphyrin with SWCNT. In Raman spectroscopy, there is a decrease in the ID/IG ratio after the covalent linkage of SWCNT with Ni-TAP compared to SWCNT-COOH, which specifies enriched electronic properties of SWCNTNiTAP. This is perhaps due to the method of acylation. The morphology study of SWCNT-NiTAP retains the tubelike structure even after the covalent functionalization. The presence of significant peaks in the C 1s and N 1s XP spectra of SWCNT-NiTAP indicate the covalent bond connection of porphyrin chromophores on SWCNTs. Fluorescence spectra of SWCNT-NiTAP show that effective fluorescent quenching is due to energy or electron transfer from Ni-TAP to SWCNTs. Moreover, SWCNT-NiTAP reveals hypsochromic shift compared to Ni-TAP, which specifies the covalent linkage of SWCNT with Ni-TAP.
Cite this Research Publication : Anakha, D.R., Yamuna, R., Covalent linking of ni (ii) complex of meso tetra(4-aminophenyl) porphyrin with single-walled carbon nanotube and its photo-physical properties, Rasayan Journal of Chemistry, 2021, 2021(Special Issue), pp. 118–125