Synthesis and crystal structure of a zinc(II) coordination polymer: N-(2-pyridylmethyl)- L-alanine)isothiocyanate Zn(II) - Archive ouverte HAL Access content directly
Journal Articles Bulletin of the Chemical Society of Ethiopia Year : 2020

Synthesis and crystal structure of a zinc(II) coordination polymer: N-(2-pyridylmethyl)- L-alanine)isothiocyanate Zn(II)

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S. J. E. Ntum
  • Function : Author
E. N. Mainsah
  • Function : Author
J. Raftery
  • Function : Author
P. O’brien
  • Function : Author
P. T. Ndifon
  • Function : Author

Abstract

The title compound, N-(2-pyridylmethyl)-L-alanine) zinc(II), [Zn(C10H11N3O2S)], a coordination polymer derived from the mixed ligands, N-(2-pyridylmethyl)-L-alanine (HL1) and ammonium thiocyanide (L2) has been synthesized and characterized by IR spectroscopy, 1H-NMR, elemental analysis, thermogravimetric analysis and single crystal x-ray structure determination.The single crystal X-ray structure analysis of the title compoundreveals a molecular polymeric compound that crystallizes in the orthorhombic crystal system and P2(1)2(1)2(1) space group. The ligand acts as a bridge between adjacent zinc(II) centres, each of which adopts a five-coordinate geometry. Zinc bonds to two N atoms and one O atom of HL1, one N atom of L2 and one O atom of another HL1 ligand. This is confirmed by IR spectroscopy. Thermogravimetric analysis shows a one-step decomposition of the complex to leave a zinc sulfide residue. KEY WORDS: Zinc(II), N-(2-pyridylmethyl)-(L)-alanine) ligand, Isothiocyanate, Coordination polymer, Single crystal structure Bull. Chem. Soc. Ethiop. 2020, 34(2), 285-293 DOI: https://dx.doi.org/10.4314/bcse.v34i2.7

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hal-03353166 , version 1 (23-09-2021)

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S. J. E. Ntum, E. N. Mainsah, Aminou Mohamadou, J. Raftery, P. O’brien, et al.. Synthesis and crystal structure of a zinc(II) coordination polymer: N-(2-pyridylmethyl)- L-alanine)isothiocyanate Zn(II). Bulletin of the Chemical Society of Ethiopia, 2020, 34 (2), pp.285-293. ⟨10.4314/bcse.v34i2.7⟩. ⟨hal-03353166⟩
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