Synthesis and Characterization of New Tetradentate Ligands

Journal article

Authors/Editors

Ochieng, Aoyi

Research Areas

ENGINEERING AND TECHNOLOGY (Frascati classification)

Publication Details

Subtitle: Synthesis and Characterization of New Tetradentate Ligands

Author list: Ochieng, Aoyi

Publisher: Taylor & Francis (Routledge): SSH Titles / National Inquiry Services Centre (NISC): 18 month embargo

Publication year: 2017

Journal: African Journal of Science, Technology, Innovation and Development (2042-1338)

Volume number: 42

ISSN: 2042-1338

eISSN: 2042-1346

Languages: English-United States (EN-US)

Abstract

Four new tetradentate ligands [1–4] have been prepared by a 1:2 molar condensation of an aromatic dialdehyde (terephthalaldehyde) with thiophen-2-ylmethanamine, 2-(thiophen-2-yl)ethanamine, pyridin-2-ylmethanamine and 2-(pyridin-2-yl)ethanamine. The ligands were characterised on the basis of their elemental analysis, IR spectroscopies, 1H, 13C NMR, ESI-mass spectrometry and for ligands 1, 2 and 4 also by X-ray diffraction. The crystal structures reveal that the ligands exist as discrete molecules with an average C–N bond distance of 1.2656 Å which is consistent with C=N double bonding.

Keywords

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